peperiksaan percubaan spm 2009 4531/1 physics · tolok skru mikrometer c vernier calipers angkup...

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SULIT

PERSIDANGAN KEBANGSAAN PENGETUA-PENGETUASEKOLAH MENENGAH

NEGERI KEDAH DARUL AMAN

PEPERIKSAAN PERCUBAAN SPM 2009 4531/1PHYSICSKertas 1

411 jam Satu jam lima belas minit

JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU

1. Kertas soalan ini adalah dalam dwibahasa.

2. Soalan dalam bahasa Inggeris mendahului soalan yang sepadan dalam bahasa Melayu.

3. Calon dikehendaki membaca maklumat di halaman belakang kertas soalan ini.

Kertas soalan ini mengandungi 35 halaman bercetakSULIT

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1 Hot FM is transmitted with a frequency of 88.2 MHz. This frequency is equal toHot FM dipancar dengan frekuensi 88.2 MHz. Frekuensi ini adalah sama dengan

A 8.82 x 105 HzB 8.82 x 106 HzC 8.82 x 107 HzD 8.82 x 108 Hz

2 Diagram 1 shows a student holding a glass rod.Rajah 1 menunjukkan seorang pelajar memegang sebatang rod kaca.

Diagram 1 / Rajah 1

The best choice of measuring instruments to measure the length and diameter of theglass rod isPilihan alat pengukur yang terbaik untuk mengukur panjang dan diameter rod kaca ituialah

Length / Panjang Diameter / DiameterA Metre rule

Pembaris meterVernier calipersAngkup vernier

B Vernier calipersAngkup vernier

Micrometer screw gaugeTolok skru mikrometer

C Vernier calipersAngkup vernier

Vernier calipersAngkup vernier

D Metre rulePembaris meter

Micrometer screw gaugeTolok skru mikrometer

5

3 A student carries out an experiment where the variables are as follows:Manipulated variable : PResponding variable : QConstant variable : R

Which is the graph that should be drawn?

Seorang pelajar menjalankan suatu eksperimen dengan pembolehubah seperti berikut:Pembolehubah dimanipulasikan : PPembolehubah bergerak balas : QPembolehubah dimalarkan : R

Graf manakah yang patut dilukis?

A B

C D

4 Diagram 2 shows two strips of ticker tapes which were attached to two moving trolleysX and Y.Rajah 2 menunjukkan dua pita detik yang dilekat pada dua buah troli X dan Y yangsedang bergerak.

Diagram 2 / Rajah 2

Which statement is correct?Pernyataan yang manakah betul?

A The time taken by both trolleys are the sameMasa yang diambil oleh kedua-dua troli adalah sama

B The distance travelled by both trolleys are the sameJarak dilalui oleh kedua-dua troli adalah sama

C The velocity of both trolleys are the sameHalaju kedua-dua troli adalah sama

R

P0

P

Q0

Q

P0

Q

R0

Trolley X / Troli X

Trolley Y / Troli Y

6

5 Diagram 3 shows a velocity-time graph of a moving bicycle.Rajah 3 menunjukkan graf halaju-masa bagi sebuah basikal yang sedang bergerak.

Diagram 3 / Rajah 3

Which statement describes the motion of the bicycle in the region WX and XY?Pernyataan yang manakah menerangkan pergerakan basikal tersebut dalam bahagianWX dan XY?

WX XYA Increasing acceleration

Pecutan bertambahDecreasing accelerationPecutan berkurang

B Increasing accelerationPecutan bertambah

Uniform accelerationPecutan seragam

C Zero accelerationPecutan sifar

Uniform accelerationPecutan seragam

D Uniform accelerationPecutan seragam

Zero accelerationPecutan sifar

6 Which object moves with the largest acceleration?Objek yang manakah bergerak dengan pecutan paling besar?

A B

C D

TimeMasa

VelocityHalaju

W

X Y

3 kg9 N 4 N

1 kg2 N

1 N

6 N 11 N2 kg

4 N

3 N2 kg

7

7 Which vehicle has the largest momentum?Kenderaan manakah mempunyai momentum yang paling besar?[m = mass, v = velocity / m = jisim, v = halaju]

A B

m = 12 000 kg, v = 2 m s–1 m = 1800 kg, v = 30 m s–1

C D

m = 250 kg, v = 40 m s–1 m = 1200 kg, v = 35 m s–1

8 Diagram 4 shows a force acting on an object.Rajah 4 menunjukkan satu daya bertindak pada suatu objek.

Diagram 4 / Rajah 4

The impulse given to the object is affected byImpuls yang diberikan kepada objek itu dipengaruhi oleh

X : force / dayaY : time of impact / masa hentamanZ : mass of the object / jisim objek

A X and Y only / X dan Y sahajaB X and Y only / X dan Y sahajaC X and Y only / X dan Y sahajaD X, Y and Z / X, Y dan Z

ForceDaya

8

9 Diagram 5 shows an object at rest on a rough inclined plane.Rajah 5 menunjukkan satu objek dalam keadaan pegun di atas permukaan condongyang kasar.

Diagram 5 / Rajah 5

Which relationship is correct?Hubungan yang manakah betul?

A qcosFR =B qsinWR =C qcosWF =D qsinWF =

10 Diagram 6 shows a toy car moving up a slope with constant velocity.Rajah 6 menunjukkan sebuah kereta mainan sedang mendaki permukaan condongdengan halaju malar.

Diagram 6 / Rajah 6

What happens to the kinetic energy and potential energy of the car?Apakah yang sedang berlaku kepada tenaga kinetik dan tenaga keupayaan kereta itu?

Kinetic energy / Tenaga kinetik Potential energy / Tenaga keupayaanA Increasing

BertambahIncreasingBertambah

B DecreasingBerkurang

DecreasingBerkurang

C ConstantMalar

IncreasingBertambah

D IncreasingBertambah

ConstantMalar

RF

Wθ

9

11 Diagram 7 shows a graph of force against extension for an elastic string.Rajah 7 menunjukkan graf daya melawan pemanjangan bagi seutas tali kenyal.

Diagram 7 / Rajah 7

The elastic potential energy of the string is represented by theTenaga keupayaan kenyal tali tersebut diwakili oleh

A area OXY / luas OXYB area OYZ / luas OYZC area OXYZ / luas OXYZD gradient of OY / kecerunan bagi OY

12 Gas pressure in a closed container is due to the gas moleculesTekanan gas di dalam sebuah bekas bertutup adalah disebabkan oleh molekul gas

A moving randomlybergerak secara rawak

B moving with equal speedbergerak dengan halaju yang sama

C colliding with one anotherberlanggar sesama sendiri

D colliding with the walls of the containerberlanggar dengan dinding bekas

ExtensionPemanjangan

ForceDaya

0

X Y

Z

10

13 Diagram 8 shows liquid X and liquid Y in glass tubes.Rajah 8 menunjukkan cecair X dan cecair Y di dalam tiub kaca.

Diagram 8 / Rajah 8

Which statement is correct?Pernyataan manakah betul?

A PS = PT because S and T are at the same depthPS = PT sebab S dan T berada pada kedalaman yang sama

B PS = PT because S and T are at the same levelPS = PT sebab S dan T berada pada aras yang sama

C PS < PT because the density of X is less than the density of YPS < PT sebab ketumpatan X lebih kecil daripada ketumpatan Y

D PS > PT because S is nearer to the bottom of the tubePS > PT sebab S lebih dekat kepada dasar tiub

14 Diagram 9 shows a manometer used to measure the pressure of the gas in the container.Rajah 9 menunjukkan sebuah manometer digunakan untuk mengukur tekanan gasdalam sebuah bekas.

Diagram 9 / Rajah 9

TS

Density of X = 800 kg m–3

Ketumpatan X = 800 kg m–3Density of Y = 1 000 kg m–3

Ketumpatan Y = 1 000 kg m–3

PS = pressure at SPS = tekanan di S

PT = pressure at TPT = tekanan di T

24 cm

GasGas

11

Which statement is true about the pressure of the gas in the container if the atmosphericpressure is 76.0 cm Hg?Pernyataan yang manakah adalah benar mengenai tekanan gas di dalam bekas itu jikatekanan atmosfera adalah 76.0 cm Hg?

A The gas pressure is zeroTekanan gas adalah sifar

B The gas pressure is equal to the atmospheric pressureTekanan gas adalah sama dengan tekanan atmosfera

C The gas pressure is 24.0 cm Hg more than atmospheric pressureTekanan gas adalah 24.0 cm Hg lebih daripada tekanan atmosfera

D The gas pressure is 24.0 cm Hg less than atmospheric pressureTekanan gas adalah 24.0 cm Hg kurang daripada tekanan atmosfera.

15 Diagram 10 shows a crane lifting a concrete beam.Rajah 10 menunjukkan sebuah kren mengangkat alang konkrit.

Diagram 10 / Rajah 10

What principle is used to move the piston at the arm of the crane?Apakah prinsip yang digunakan untuk menggerakkan omboh pada lengan kren itu?

A Pascal's principle / Prinsip PascalB Archimedes' principle / Prinsip ArchimedesC Bernoulli's principle / Prinsip Bernoulli

PistonOmboh

12

16 Which situation occurs due to atmospheric pressure?Situasi yang manakah berlaku disebabkan tekanan atmosfera?

A

B

C

D

Dented ping pong ball becomes round again whenimmersed in hot water

Bola ping pong yang kemek menjadi bulat semulaapabila direndam dalam air panas

Pouring water out of a bottle

Menuang air keluar daripada botol

Pressing icing onto a cake

Menekan aising pada kek

Sucking water into a syringe

Menyedut air ke dalam picagari

13

17 Diagram 11 shows the cross-section of an iceberg floating on the surface of the sea.

Rajah 11 menunjukkan keratan rentas sebuah bongkah ais terapung di permukaan laut.


Which statement is correct?

Pernyataan yang manakah betul?

A Weight of iceberg = Weight of sea water displacedBerat bongkah ais = Berat air laut tersesar

B Volume of iceberg = Volume of sea water displacedIsipadu bongkah ais = Isipadu air laut tersesar

C Density of iceberg = Density of sea water displacedKetumpatan bongkah ais = Ketumpatan air laut tersesar

Sea levelAras laut

IcebergBongkah ais

14

18 Which diagram shows the correct water levels when water flows steadily through theglass tube?

Rajah manakah menunjukkan aras air yang betul apabila air mengalir secara mantapmelalui tiub kaca itu?

A

B

C

D

to sinkke sinki

from tapdari pili air

Glass tube / Tiub kaca


to sinkke sinki



to sinkke sinki



to sinkke sinki


15

19 Diagram 12 shows cold milk being added to hot tea.Rajah 12 menunjukkan susu sejuk ditambahkan kepada teh panas.


Which statement is correct if there are no heat losses to the surroundings?Pernyataan yang manakah betul jika tiada haba hilang ke persekitaran?

A Heat gained by cold milk is less than heat lost by hot teaPenerimaan haba oleh susu sejuk adalah kurang daripada kehilangan haba olehteh panas

B Heat gained by cold milk is greater than heat lost by hot teaPenerimaan haba oleh susu sejuk adalah lebih banyak daripada kehilangan habaoleh teh panas

C Heat gained by cold milk is equal to heat lost by hot teaPenerimaan haba oleh susu sejuk adalah sama dengan kehilangan haba oleh tehpanas

16

Metal cylinderSilinder logam

ThermometerTermometer

1 000 W heaterPemanas 1000 W

Boiling waterAir mendidih

SteamStim

20 Diagram 13 shows a metal cylinder of mass 5.0 kg and specific heat capacity400 J kg–1 oC–1.Rajah 13 menunjukkan satu silinder logam berjisim 5.0 kg dan muatan haba tentu400 J kg–1 oC–1.


What is the temperature rise of the cylinder 10 seconds after the heater is switched on?Berapakah kenaikan suhu silinder itu 10 saat selepas pemanas itu dihidupkan?

A 0.20 oCB 0.80 oCC 1.25 oCD 5.00 oC

21 Diagram14 shows the arm of a person being splashed by boiling water and the arm ofanother person being exposed to steam. Both the hot water and steam have the samemass.

Rajah 14 menunjukkan tangan seorang disimbah air panas and tangan seorang lainyang terdedah kepada stim. Kedua-dua air panas dan stim mempunyai jisim yang sama.


The scalding on the skin caused by steam is more serious than the scalding caused byboiling water because

Kelecuran kulit yang disebabkan oleh stim lebih serius daripada kelecuran kulit yangdisebabkan oleh air mendidih sebab

17

P : steam has a higher temperature / stim mempunyai suhu yang lebih tinggiQ : steam has a higher heat content / stim mengandungi lebih banyak habaR : steam has a higher specific heat capacity / stim mempunyai muatan haba tentu

yang lebih tinggi

A P only / P sahajaB Q only / Q sahajaC P and Q only / P dan Q sahajaD P, Q and R / P, Q dan R.

22 Which graph shows the relationship between the volume and absolute temperature of afixed mass of gas at constant pressure?

Graf yang manakah menunjukkan hubungan antara isipadu dan suhu mutlak bagi satujisim tetap gas pada tekanan malar?

A B

C D

T / K

V / m3

0 T / K

V / m3

0

T / K

V / m3

0 T / K

V / m3

0

18

23 Diagram 15(a) shows an air bubble released by a diver at the bottom of the sea.Diagram 15(b) shows the air bubble when it arrives at the surface of the sea.

Rajah 15(a) menunjukkan satu gelembung udara dilepaskan oleh seorang penyelam didasar laut.Rajah 15(b) menunjukkan gelembung udara itu apabila tiba di permukaan laut

(a) (b)Diagram 15 / Rajah 15

The difference in the size of the air bubble can be explained by

Perbezaan dalam saiz gelembung udara itu boleh diterangkan oleh

A Boyle's law / hukum BoyleB Charles' law / hukum CharlesC Pressure law / hukum tekanan

24 Diagram 16 shows an object in front of a convex lens and its image.Rajah 16 menunjukkan suatu objek di hadapan sebuah kanta cembung dan imejnya.


What is the focal length of the lens?Berapakah panjang fokus kanta itu?

A 20.00 cmB 7.50 cmC 6.67 cmD 0.15 cm

Air bubbleGelembung udara

Surface of the seaPermukaan laut

Air bubbleGelembung udara

ObjectObjek

30 cm

10 cm

ImageImej

19

25 Diagram 17 shows parallel light rays directed at the surface of a concave mirror.Rajah 17 menunjukkan sinar cahaya selari ditujukan ke permukaan cermin cekung.


Which diagram shows the path of the rays after striking the mirror?Rajah yang manakah menunjukkan lintasan cahaya selepas terkena cermin itu?

A

B

C

D

20

26 Diagram 18 shows light travelling from glass to air.Rajah 18 menunjukkan cahaya merambat dari kaca ke udara.


The refractive index of glass isIndeks biasan kaca ialah

Aps

sinsin

Bsp

sinsin

Cqt

sinsin

Dtq

sinsin

AirUdara

GlassKaca

qp

t

s

21

27 Diagram 19 shows a light ray travelling in medium P towards medium Q. The refractiveindex of P is higher than the refractive index of Q.

Rajah 19 menunjukkan satu sinar cahaya yang bergerak dalam medium P menuju kemedium Q. Indeks biasan P lebih tinggi daripada indeks biasan Q.


Which diagram shows a possible path of the light ray?Rajah manakah menunjukkan lintasan sinar cahaya yang mungkin betul?

A

B

C

D

P

Q

P

Q

P

Q

P

Q

P

Q

22

28 An astronomical telescope has an eyepiece of focal length 5 cm. The distance betweenthe objective lens and the eyepiece is 85 cm.What is the magnifying power of the telescope?Sebuah teleskop astronomi mempunyai kanta mata dengan panjang fokus 5 cm. Jarakantara kanta objek dan kanta mata ialah 85 cm.Berapakah kuasa pembesaran teleskop itu?

A 16B 17C 80D 90

29 Diagram 20 shows a transverse wave propagating from P to Q.Rajah 20 menunjukkan suatu gelombang melintang yang merambat dari P ke Q.


Which is the correct direction of vibration and the direction of energy transfer betweenP and Q?

Manakah arah getaran dan arah pemindahan tenaga yang betul antara P dan Q?

Direction of vibrationArah getaran

Direction of energy transferArah pemindahan tenaga

A

B

C

D

P Q

23

30 Diagram 21 shows the propagation of water waves from region X to Y.Rajah 21 menunjukkan perambatan gelombang air dari kawasan X ke Y.


Which is the correct comparison of the wave speed and depth of water in X and Y?Perbandingan yang manakah betul bagi laju gelombang dan kedalaman air di X danY?

Wave speed / Laju gelombang Depth of water / Kedalaman air

A vX > vY X > Y

B vX > vY X < Y

C vX < vY X > Y

D vX < vY X <Y

X Y

vX

vY

vX = speed of wave in X / laju gelombang di X

vY = speed of wave in Y / laju gelombang di Y

24

31 Diagram 22 shows a toy boat behind a barrier in a ripple tank.Rajah 22 menunjukkan sebuah bot mainan di belakang suatu halangan di dalam sebuahtangki riak.


The boat moves up and down after the waves pass the barrier. This is due to ..…………of the water waves.Bot itu bergerak ke atas dan ke bawah selepas gelombang itu melalui halangan. Inidisebabkan oleh …………… gelombang air.

A reflection / pantulan B refraction / pembiasan

C diffraction / pembelauanD interference / interferens

32 Which is not a property of an electromagnetic wave?

Yang manakah bukan ciri gelombang elektromagnet?

A It is a transverse wave / Ia adalah gelombang melintangB It is a longitudinal wave / Ia adalah gelombang membujurC It can travel through vacuum / Ia boleh bergerak melalui vakumD It can travel through air / Ia boleh bergerak melalui udara

Concrete barrierHalangan konkrit

BoatBot

25

33 Diagram 23 shows the superposition of two water waves.Rajah 23 menunjukkan superposisi dua gelombang air.


At which points do constructive interference occur?

Di titik manakah interferens membina berlaku?

A P and Q / P dan QB Q and R / Q dan RC R and S / R dan SD P and S / P dan S

34 Someone can be heard coming round a corner of a building before he can be seen.Which statement best explains the above situation?Seseorang yang datang dari sebalik penjuru bangunan boleh didengar sebelum diaboleh dilihat.Pernyataan manakah paling sesuai untuk menerangkan situasi di atas?

A Light travels faster than soundCahaya bergerak lebih laju dari bunyi

B Sound travels faster than lightBunyi bergerak lebih laju dari cahaya

C Light is refracted less by air compared to soundCahaya kurang dibiaskan oleh udara berbanding bunyi

D Sound has a longer wavelength than lightBunyi mempunyai panjang gelombang yang lebih besar dari cahaya

Crest / PuncakP Q

R STrough / Palung

26

35 Which voltage-current graph shows that resistance increases when current increases?Graf voltan-arus yang manakah menunjukkan rintangan bertambah apabila arusbertambah?

A B

C D

36 Diagram 24 shows current flowing through two resistors in series. A1 and A2 areammeters while V1 and V2 are voltmeters.Rajah 24 menunjukkan arus mengalir melalui dua perintang yang disambung sesiri. A1dan A2 adalah ammeter manakala V1 dan V2 adalah voltmeter.


Which is the correct comparison of the ammeter and voltmeter readings?

Perbandingan yang manakah benar tentang bacaan ammeter dan voltmeter?

VoltageVoltan

0Current

Arus

VoltageVoltan

0Current

Arus

VoltageVoltan

0Current

Arus

VoltageVoltan

0Current

Arus

A1 5 Ω 10 Ω A2

V1 V2

27

Ammeter reading / Bacaan ammeter Voltmeter reading / Bacaan voltmeter

A A1 < A2 V1 < V2

B A1 > A2 V1 > V2

C A1 = A2 V1 = V2

D A1 = A2 V1 < V2

37 Diagram 25 shows a circuit in which the cell has internal resistance.Rajah 25 menunjukkan suatu litar di mana sel itu mempunyai rintangan dalam.


What are the changes in the reading of the ammeter and voltmeter when the resistanceof the rheostat is decreased?Apakah perubahan bacaan ammeter dan voltmeter apabila rintangan rheostatdikurangkan?

Ammeter reading / Bacaan ammeter Voltmeter reading / Bacaan voltmeter

A Increases / Bertambah Increases / Bertambah

B Increases / Bertambah Decreases / Berkurang

C Decreases / Berkurang Increases / Bertambah

D Decreases / Berkurang Decreases / Berkurang

E , r

V

A

28

38 Diagram 26 shows the readings of an ammeter and voltmeter connected to a resistor.Rajah 26 menunjukkan bacaan ammeter dan voltmeter yang disambung kepada suatuperintang.


Calculate the power released by the resistor.

Hitung kuasa yang dibebaskan pada perintang itu.

A 0.72 WB 7.20 WC 8.00 WD 19.20 W

39 Diagram 27 shows a compass near a straight wire XY.

Rajah 27 menunjukkan sebuah kompas berhampiran dengan dawai lurus XY.


Where should the compass be placed such that it will point to the East when K isswitched on?Di manakah kompas itu harus diletakkan supaya ia menunjuk ke Timur apabila Kdihidupkan?

A Above wire XY / Di atas dawai XYB Below wire XY / Di bawah dawai XYC To the left of wire XY / Di sebelah kiri dawai XYD To the right of wire XY / Di sebelah kanan dawai XY

V

A

N

S

EWX

Y

CompassKompas

K

29

40 Diagram 28 shows a current-carrying wire between the poles of a pair of permanentmagnets.What is the direction of the magnetic force on the wire?Rajah 28 menunjukkan seutas dawai yang membawa arus di antara kutub-kutubsepasang magnet kekal.Apakah arah daya magnet pada dawai itu?


41 Diagram 29 shows a bar magnet being pushed towards a solenoid.

Rajah 29 menunjukkan sebatang magnet bar ditolak ke arah sebuah solenoid.


P : Induced e.m.f. / D.g.e. teraruhQ : Induced current / Arus teraruhR : Magnetic field / Medan magnet

What is produced by the solenoid?

Apakah yang dihasilkan oleh solenoid?

A P only / P sahajaB Q only / Q sahajaC P and Q / P dan QD P, Q and R / P, Q dan R

Bar magnet / Magnet bar

SN

N S

C

B

A

D

Current / Arus

Wire / Dawai

30

42 Which circuit shows voltage being stepped up?Litar manakah menunjukkan voltan diinjak naik?

A B

C D

43 In a model of transmission of electricity, 24 W of power is transmitted at 48 V usingcables with a resistance of 2 Ω.What is the current in the cables and the power loss?Dalam suatu model penghantaran elektrik, kuasa 24 W dihantar pada 48 Vmenggunakan kabel dengan rintangan 2 Ω.Berapakah arus dalam kabel dan kehilangan kuasa?

Current in the cables / Arus dalam kabel Power loss / Kehilangan kuasa

A 0.5 A 0.5 W

B 0.5 A 1.0 W

C 2.0 A 4.0 W

D 2.0 A 8.0 W

31

44 Diagram 30 shows a waveform on cathode ray oscilloscope (CRO) screen.Rajah 30 menunjukkan suatu bentuk gelombang pada suatu skrin osiloskop sinar katod(OSK)


If the Y-input of CRO is set at 5.0 V cm–1, what is the peak voltage?Jika input-Y pada OSK dilaraskan pada 5.0 V cm–1, berapakah voltan puncaknya?

A 20.0 VB 10.0 VC 5.0 VD 2.0 V

45 Diagram 31 shows a circuit where the bulb does not light up.

Rajah 31 menunjukkan litar di mana mentol tidak menyala.


Which step will make the bulb light up?

Langkah manakah akan menyalakan mentol?

A Inserting a fuse in the circuitMemasang fius

B Reversing the battery connectionMenyongsangkan sambungan bateri

C Changing the power supply to a 3 V batteryMenukar bekalan kuasa kepada bateri 3 V

D Reversing the bulb connectionMenyongsangkan sambungan mentol

1 cm

1 cm

6 V

32

46 In which circuit will the bulb light up when switch S is closed?Dalam litar manakah mentol akan menyala apabila suis S ditutup?

A B

C D

47 Diagram 32 shows a logic gate circuit.Rajah 32 menunjukkan litar get logik.


Which truth table is correct?

Jadual kebenaran yang manakah betul?

A B C D

Z

X

Y

X Y Z0 0 00 1 01 0 11 1 1

X Y Z0 0 10 1 01 0 01 1 1

X Y Z0 0 10 1 01 0 11 1 0

X Y Z0 0 10 1 11 0 01 1 0

1 kΩ

2 kΩ

6 V

S

1 kΩ 6 V

S

10 kΩ

2 kΩ

1 kΩ6 V

S

10 kΩ

2 kΩ

1 kΩ6 V

S

10 kΩ

2 kΩ

33

48 X is a nuclide with nuclide notation X137 . Another nuclide Y has 2 protons and 3

neutrons more than X. What is the nuclide notation for Y?

X ialah nuklida dengan notasi nuklida X137 . Suatu nuklida yang lain Y mempunyai

2 proton dan 3 neutron lebih daripada X. Apakah notasi nuklida bagi Y?

A Y139

B Y169

C Y189

D Y1810

49 Diagram 33 shows a graph of activity against time for a radioactive sample.Rajah 33 menunjukkan graf aktiviti melawan masa untuk satu sampel radioaktif.


Which statement is correct?Pernyataan yang manakah benar?

A The half life is 20 minutesSeparuh hayat bahan itu ialah 20 minit

B After 30 minutes, 25% of the sample have not decayedSelepas 30 minit, 25% daripada sampel itu belum mereput

C After 45 minutes, the activity will be 100 counts per minuteSelepas 45 minit, aktiviti akan menjadi 100 pembilangan per minit

D The activity will become zero after a few daysAktiviti akan berkurang ke sifar selepas beberapa hari

800

600

400

200

0 40 Time / minutesMasa / minit

Activity / counts per minuteAktiviti / pembilangan per minit

5 10 15 20 25 30 35

1000

1200

34

50 A chain reaction can occur in a reactor because during nuclear fissionTindak balas berantai boleh berlaku di dalam sebuah reaktor sebab semasapembelahan nuklear

A new neutrons are produced / neutron baru dihasilkanB two fission fragments are produced / dua serpihan belahan dihasilkanC a large amount of energy is released / tenaga yang banyak dibebaskanD the temperature is very high / suhu adalah sangat tinggi

END OF QUESTION PAPER

KERTAS SOALAN TAMAT

35

INFORMATION FOR CANDIDATESMAKLUMAT UNTUK CALON

1. This question paper consists of 50 questions.Kertas soalan ini mengandungi 50 soalan.

2. Answer all questions.Jawab semua soalan.

3. Each question is followed by either three or four options. Choose the best option foreach question and blacken the correct space on the answer sheet.Tiap-tiap soalan diikuti oleh sama ada tiga atau empat pilihan jawapan. Pilih satujawapan yang terbaik bagi setiap soalan dan hitamkan ruangan yang betul pada kertasjawapan anda.

4. Blacken only one space for each question.Hitamkan satu ruangan sahaja bagi setiap soalan.

5. If you wish to change your answer, erase the blackened mark that you have made. Thenblacken the space for the new answer.Sekiranya anda hendak menukar jawapan, padamkan tanda yang telah dibuat.Kemudian hitamkan jawapan yang baru.

6. The diagrams in the questions provided are not drawn to scale unless stated.Rajah yang mengiringi soalan tidak dilukis mengikut skala kecuali dinyatakan.

7. You may use a non-programmable scientific calculator.Anda dibenarkan menggunakan kalkulator saintifik yang tidak boleh diprogram

8. A list of formulae is provided on page 2.Satu senarai formula disediakan di halaman 2.

1

SULIT

NO. KAD PENGENALAN

ANGKA GILIRAN

NAMA: …….…………......…….............……..………. TINGKATAN: …….....………




212 jam Dua jam tiga puluh minit


1. Kertas soalan ini adalah dalamdwibahasa.

2. Soalan dalam bahasa Inggeris mendahuluisoalan yang sepadan dalam bahasaMelayu.

3. Calon dibenarkan menjawab keseluruhanatau sebahagian soalan sama ada dalambahasa Inggeris atau bahasa Melayu.

4. Calon dikehendaki membaca maklumat dihalaman belakang kertas soalan ini.


Untuk Kegunaan Pemeriksa

Bahagian Soalan MarkahPenuh

MarkahDiperoleh

1234567

A

89

B1011

C12

Jumlah

4

Section ABahagian A[60 marks]

Answer all questions in this section.Jawab semua soalan dalam bahagian ini.

1 Diagram 1.1 shows an electrical measuring instrument.Rajah 1.1 menunjukkan sebuah alat pengukur elektrik.

Diagram 1.1 / Rajah 1.1

(a) (i) What is the physical quantity measured by this instrument?Apakah kuantiti fizik yang diukur oleh alat ini?

…......................................................................................................................[1 mark]

(ii) Name the error found on this instrument.Namakan ralat yang terdapat pada alat ini.

…......................................................................................................................[1 mark]

5

(b) Diagram 1.2 shows two instruments, X and Y, that can be used to measure thethickness of a wire.Rajah 1.2 menunjukkan dua alat pengukur, X dan Y, yang boleh digunakan untukmenentukan ketebalan seutas dawai.

X

Y


(i) Which instrument is more suitable to measure the thickness of the wire?Alat pengukur yang manakah lebih sesuai untuk mengukur ketebalan dawaiitu?

…......................................................................................................................[1 mark]

(ii) State one reason for your answer in 1(b)(i). Nyatakan satu sebab bagi jawapan anda di 1(b)(i).

…......................................................................................................................

…......................................................................................................................[1 mark]

6

2 Diagram 2 shows ice melting in a glass. The initial mass of the ice is 0.20 kg.Rajah 2 menunjukkan ais melebur di dalam sebuah gelas. Jisim awal ais itu ialah0.20 kg.

Diagram 2 / Rajah 2

(a) Explain in terms of energy why the reading of the thermometer,Terangkan dalam sebutan tenaga mengapa bacaan termometer itu,

(i) remains constant for the first 20 minutes.kekal malar untuk 20 minit yang pertama.

…......................................................................................................................[1 mark]

(ii) increases after 20 minutes.meningkat selepas 20 minit.

…......................................................................................................................[1 mark]

(b) Calculate the heat absorbed by the ice during the first 20 minutes.[Specific latent heat of fusion of ice = 3.36 x 105 J kg–1]Hitungkan haba yang diserap oleh ais itu semasa 20 minit yang pertama.[Haba pendam tentu pelakuran ais = 3.36 x 105 J kg–1]

[2 marks]

Thermometer / termometer

Ice / Ais

7

(c) Which statement correctly describes the water in the glass after it is left for a fewhours. Mark ( ) in the correct box.Pernyataan manakah yang memerihalkan dengan betul tentang air dalam gelasitu selepas dibiarkan selama beberapa jam. Tanda ( ) pada kotak yang betul.

There is no transfer of energy between the water and the surroundingsTiada pemindahan tenaga antara air dan persekitaran

There is no net transfer of energy between the water and thesurroundingsTiada pemindahan bersih tenaga antara air dan persekitaran

[1 mark]

3 Diagram 3 shows a block of concrete being lowered to the bottom of a lake. Thevolume of the block is 2.5 m3 and its weight is 125 000 N. The density of the water inthe lake is 1 010 kg m–3.Rajah 3 menunjukkan satu bongkah konkrit diturunkan ke dasar sebuah tasik. Isipadubongkah itu ialah 2.5 m3 dan beratnya ialah 125 000 N. Ketumpatan air dalam tasik ituialah 1 010 kg m–3.

Diagram 3 / Rajah 3

(a) State the SI unit for pressure.Nyatakan unit SI bagi tekanan.

……………………………………………………………………………………… [1 mark]

(b) State one factor that affects the pressure at a point below the surface of a liquid.Nyatakan satu faktor yang mempengaruhi tekanan pada satu titik di bawahpermukaan cecair.

……………………………………………………………………………………… [1 mark]

T

Concrete blockBongkah konkrit

WaterAir

8

(c) (i) Calculate the weight of the water displaced by the block.Hitungkan berat air yang disesarkan oleh bongkah itu.

[2 marks](ii) Calculate the tension, T, in the cable.

Hitungkan tegangan, T, dalam kabel itu.

[2 marks]

4 Diagram 4.1 shows a transistor circuit for an alarm which is activated by heat.Rajah 4.1 menunjukkan satu litar transistor bagi penggera yang diaktifkan oleh haba.


(a) Name the component T.Namakan komponen T.

………………………………………………………………………………………[1 mark]

1 kΩ IB

T

R

6 V

9

(b) Complete the following sentences by underlining the correct word.Lengkapkan ayat-ayat berikut dengan menggariskan perkataan yang betul.

When T is heated up, its resistance ( decreases / increases ).The base current, IB ( decreases / increases ) to switch on the transistor and lightup the bulb.Apabila T dipanaskan, rintangannya ( berkurang / bertambah ).Arus tapak, IB ( berkurang / bertambah ) untuk menghidupkan transistor danmenyalakan mentol.

[2 marks]

(c) Diagram 4.2 shows the trace produced by an alternating current signal on thescreen of a cathode ray oscilloscope. The time base of the oscilloscope is set at0.02 s per division.Rajah 4.2 menunjukkan satu surih yang dihasilkan oleh satu isyarat arusulangalik pada skrin sebuah osiloskop sinar katod. Dasar masa osiloskop ituditetapkan pada 0.02 s per bahagian.

Diagram 4.2 / Rajah 4.2 Diagram 4.3 / Rajah 4.3

(i) What is the period of the alternating current signal?Berapakah tempoh bagi isyarat arus ulangalik itu?

…......................................................................................................................[1 mark]

(ii) Calculate the frequency of the alternating current signal.Hitung frekuensi bagi isyarat arus ulangalik itu.

[2 marks]

(iii) On Diagram 4.3, draw the trace produced when the frequency of thealternating current signal is doubled.Pada Rajah 4.3, lukis surih yang dihasilkan apabila frekuensi isyarat arusulangalik itu menjadi dua kali ganda.

[1 mark]

10

5 Diagram 5.1 shows a ray of light entering from air into water.Diagram 5.2 shows a ray of light entering from air into glass.Rajah 5.1 menunjukkan satu sinar cahaya bergerak dari udara ke dalam air.Rajah 5.2 menunjukkan satu sinar cahaya bergerak dari udara ke dalam kaca.


(a) (i) Compare the speed of light in water with the speed of light in air.Banding laju cahaya dalam air dengan laju cahaya dalam udara.

…......................................................................................................................[1 mark]

(ii) Compare the speed of light in glass with the speed of light in air.Banding laju cahaya dalam kaca dengan laju cahaya dalam udara.

…......................................................................................................................[1 mark]

(iii) State the relationship between the speed of light in a medium and thedirection of bending of light in that medium.Nyatakan hubungan antara laju cahaya dalam suatu medium dan arahpembengkokannya dalam medium itu.

…......................................................................................................................[1 mark]

(iv) Name the phenomenon shown in Diagram 5.1 and Diagram 5.2.Namakan fenomena yang ditunjukkan dalam Rajah 5.1 dan Rajah 5.2.

…......................................................................................................................[1 mark]

WaterAir

GlassKaca

11

(b) Diagram 5.3 shows a point P at the bottom of a swimming pool appears to be atthe point Q to the observer.Rajah 5.3 menunjukkan satu titik P pada dasar satu kolam renang kelihatan padatitik Q kepada pemerhati itu.


(i) Complete Diagram 5.3 by drawing light rays to show how the image of thepoint P is seen at Q.Lengkapkan Rajah 5.3 dengan melukis sinar cahaya untuk menunjukkanbagaimana imej titik P kelihatan pada titik Q.

[2 marks]

(ii) Calculate the refractive index of the water in the swimming pool.Hitung indeks biasan air dalam kolam renang itu.

[2 marks]

ObserverPemerhati

P

Q

1.2 m1.6 m

12

6 Diagram 6.1 shows the activity of a radioactive substance X and a radioactive substanceY being measured by a Geiger-Muller tube connected to a ratemeter.Rajah 6.1 menunjukkan aktiviti bahan radioaktif X dan bahan radioaktif Y diukuroleh tiub Geiger-Muller yang disambung kepada meter kadar.


Diagram 6.2 shows the decay curves obtained for radioactive substance X andradioactive substance Y.Rajah 6.2 menunjukkan lengkungan pereputan yang diperoleh bagi bahan radioaktif Xdan bahan radioaktif Y.

Radioactive substance XBahan radioaktif X

G-M tubeTiub G-M Ratemeter

Meter kadar

Radioactive substance YBahan radioaktif Y

G-M tubeTiub G-M Ratemeter

Meter kadar

13


(a) What is the meaning of half life?Apakah maksud separuh hayat?

……………………………………………………………………………………… [1 mark]

(b) Based on the decay curves in Diagram 6.2,Berdasarkan lengkungan-lengkungan pereputan dalam Rajah 6.2,

(i) State the half life of radioactive substance X and radioactive substance Y.Nyatakan separuh hayat bagi bahan radioaktif X dan bahan radioaktif Y.

X : .................................

Y : .................................[2 marks]

(ii) For radioactive substance X and radioactive substance Y, what percentageremains undecayed after 10 minutes?Bagi bahan radioaktif X dan bahan radioaktif Y, berapa peratuskah yangbelum mereput selepas 10 minit?

X : .................................

Y : .................................[2 marks]

Time / minutesMasa / minit

800

X

Activity / Counts per minuteAktiviti / Pembilangan per minit

0

Y

700

600

500

400

300

200

100

5 10 15 20 25 30

14

(c) Based on the answers to 6(b)(i) and 6(b)(ii), compare the decay rates ofradioactive substance X and radioactive substance Y.Hence state the relationship between decay rate and half life.Berdasarkan jawapan-jawapan kepada 6(b)(i) dan 6(b)(ii), banding kadarpereputan bagi bahan radioaktif X dan bahan radioaktif Y.Seterusnya, nyatakan hubungan antara kadar pereputan dan separuh hayat.

………………………………………………………………………………………

………………………………………………………………………………………

[2 marks]

(d) Give a reason why the readings of the ratemeters did not drop to zero afterradioactive substance X and radioactive substance Y were removed.Beri satu sebab mengapa bacaan-bacaan meter kadar itu tidak kembali ke sifarselepas bahan radioaktif X dan bahan radioaktif Y dikeluarkan.

……………………………………………………………………………………… [1 mark]

15

7 Diagram 7 shows an electric motor lifting a 2.0 kg load. When the motor is switched on,the load moved through a height of 1.5 m in 2.5 s with constant speed. The currentflowing in the circuit is 1.7 A and the potential difference across the motor is 10.0 V.Rajah 7 menunjukkan sebuah motor elektrik sedang mengangkat satu beban 2.0 kg.Apabila motor itu dihidupkan, beban itu bergerak melalui ketinggian 1.5 m dalam 2.5 sdengan laju malar. Arus yang mengalir dalam litar ialah 1.7 A dan beza keupayaanmerentasi motor itu ialah 10.0 V.

Diagram 7 / Rajah 7

(a) State the changes in energy that occur when the motor is switched on.Nyatakan perubahan tenaga yang berlaku apabila motor itu dihidupkan.

……………………………………………………………………………………… [1 mark]

(b) Calculate,Hitung,(i) the electrical power supplied when the motor is lifting the load.

kuasa elektrik yang dibekalkan semasa motor itu mengangkat beban.

[2 marks]

(ii) the output power of the motor when the load moved through a height of1.5 m in 2.5 s.kuasa output motor apabila beban itu melalui ketinggian 1.5 m dalam 2.5 s.

[2 marks]

MotorMotor

AxleGandar

16

(iii) the efficiency of the electric motor.kecekapan motor itu.

[2 marks]

(c) If some of the load is removed while the motor is still lifting the load, whatchange is observed on the ammeter? Explain your answer.Jika sebahagian daripada beban dikeluarkan semasa motor itu mengangkatbeban, apakah perubahan yang diperhatikan pada ammeter? Jelaskan jawapananda………………………………………………………………………………………

……………………………………………………………………………………… [2 marks]

(d) Suggest one way to increase the efficiency of the motor.Cadangkan satu cara untuk menambah kecekapan motor itu.

……………………………………………………………………………………… [1 mark]

17

20

40

60

80

100

2 4 6 8 10 12

120

P

Q

R

Extension / cmPemanjangan / cm

Force / NDaya / N

0

17

8 Diagram 8 shows the graph of force against extension for three springs P, Q and R.Rajah 8 menunjukkan graf daya melawan pemanjangan bagi tiga spring P, Q dan R.

Diagram 8 / Rajah 8

(a) (i) A law states that the extension of a spring is directly proportional to theforce applied if the elastic limit of the spring is not exceeded.Name this law.Suatu hukum menyatakan bahawa pemanjangan seutas spring adalahberkadar terus dengan daya yang dikenakan jika had kenyal tidak dilebihi.Nyatakan hukum ini.

…......................................................................................................................[1 mark]

(ii) On the graph in Diagram 8, mark ' X ' at the elastic limit for each spring.Pada graf dalam Rajah 8, tandakan ' X ' pada had kenyal setiap spring.

[2 marks]

18

(b) The spring stores energy when it is extended.Spring itu menyimpan tenaga apabila diregang.(i) Name the energy stored in the spring when it is extended.

Namakan tenaga yang disimpan dalam spring yang diregang.

…......................................................................................................................[1 mark]

(ii) Calculate the energy stored in spring R when its extension is 8.0 cm.Hitung tenaga yang disimpan dalam spring R apabila pemanjangannya8.0 cm.

[3 marks]

(c) The springs are to be used in a Newton balance to measure a maximum load ofmass 8 kg.Spring-spring tersebut akan digunakan di dalam neraca Newton untuk mengukurbeban maksimum berjisim 8 kg.(i) What is the maximum weight of the load?

Berapakah berat maksimum beban itu?

…......................................................................................................................[1 mark]

(ii) Based on Diagram 8, choose two springs which are suitable to be used in theNewton balance specified above.Berdasarkan Rajah 8, pilih dua spring yang sesuai untuk digunakan didalam neraca Newton tersebut di atas.

…......................................................................................................................[2 marks]

(iii) Which spring is the most suitable to be used in the Newton balance? Explainyour answer.Spring yang manakah paling sesuai untuk digunakan di dalam neracaNewton itu. Terangkan jawapan anda.

…......................................................................................................................

…......................................................................................................................[2 marks]

19

Section BBahagian B[20 marks]

Answer any one question from this section.Jawab mana-mana satu soalan daripada bahagian ini.

9 Diagram 9.1 shows a stationary pistol on a smooth surface.Diagram 9.2 shows the pistol and bullet after the pistol has been fired by remotecontrol.Rajah 9.1 menunjukkan sebuah pistol pegun di atas permukaan licin.Rajah 9.2 menunjukkan pistol dan peluru selepas tembakan dilepaskan secara kawalanjauh.



(a) (i) What is the meaning of momentum?Apakah maksud dengan momentum?

[1 mark]

(ii) State the total momentum of the pistol and bullet in Diagram 9.1Using Diagram 9.1 and Diagram 9.2, compare the total momentum beforeand after the bullet is fired.Using Diagram 9.2, compare the magnitude and direction of the momentumof the bullet and pistol.Name the physics principle that can be applied to the motion of the bulletand pistol.

Stationary pistolPistol pegun

Bullet moves at high speedPeluru bergerak denganlaju tinggi

Pistol recoils at lowerspeedPistol tersentak denganlaju yang lebih rendah

20

Menggunakan Rajah 9.1 dan Rajah 9.2, bandingkan jumlah momentumsebelum dan selepas peluru itu ditembak.Menggunakan Rajah 9.2, bandingkan magnitud dan arah momentum pelurudan pistol.Nyatakan prinsip fizik yang boleh diaplikasi kepada gerakan peluru danpistol itu.

[5 marks]

(b) Describe, in terms of momentum, the propulsion of a rocket engine.Terangkan, dalam sebutan momentum, rejangan sebuah enjin roket.

[4 marks]

(c) Diagram 9.3 shows a the structure of a jet engine for a small jet plane.Rajah 9.3 menunjukkan struktur sebuah enjin jet bagi sebuah kapal terbang jetyang kecil.


You are required to give some suggestions to improve the design of the jet engineso that it can be used on a larger jet plane that travels at a higher speed.Using the knowledge on forces and motion and the properties of materials, explainthe suggestions based on the aspects labeled on Diagram 9.3Anda dikehendaki memberi beberapa cadangan untuk membaiki reka bentuk enjinjet itu supaya enjin jet itu boleh digunakan pada sebuah kapal terbang jet yanglebih besar dan bergerak lebih laju.Menggunakan pengetahuan tentang gerakan, daya dan sifat-sifat bahanterangkan cadangan itu yang merangkumi aspek-aspek yang dilabel pada Rajah9.3.

[10 marks]

Combustion chamberKebuk pembakaran

Turbine bladesBilah turbin

Compression bladesBilah pemampat

Fuel injectorPemancut bahan api

NozzleNozel

21

10 Diagram 10.1 shows a tuning fork vibrating near a microphone. The sound wavesdetected by the microphone are displayed on a cathode-ray oscilloscope.Rajah 10.1 menunjukkan sebuah tala bunyi bergetar berhampiran dengan sebuahmikrofon. Gelombang bunyi yang dikesan oleh mikrofon itu dipaparkan pada sebuahosiloskop sinar katod.

When the tuning fork is struck harder, the sound produced is louder and the soundwaves produced are as shown in Diagram 10.2.Apabila tala bunyi itu diketuk dengan lebih kuat, bunyi yang dihasilkan adalah lebihnyaring dan gelombang bunyi yang dihasilkan adalah seperti ditunjukkan dalam Rajah10.2.


(a) (i) What is the meaning of longitudinal waves?Apakah maksud gelombang membujur?

[1 mark](ii) Explain how a tuning fork produces sound waves.

Jelaskan bagaimana tala bunyi menghasilkan gelombang bunyi.[4 marks]

Tuning forkTala bunyi

a1a2

22

(b) Using Diagram 10.1 and Diagram 10.2,Berdasarkan Rajah 10.1 dan Rajah 10.2,

(i) Compare the amplitudes of vibration of the tuning forks.Banding amplitud getaran tala bunyi itu.

(ii) Compare the peak values, a1 and a2, of the waves displayed by theoscilloscope.Banding nilai puncak, a1 dan a2, bagi gelombang yang dipaparkan padaosiloskop.

(iii) Relate the peak values displayed by the oscilloscope to the amplitude of thesound wave.Hubungkan nilai-nilai puncak yang dipapar pada osiloskop denganamplitud gelombang bunyi.

(iv) Relate the peak value to the loudness of the sound produced.Hubungkan nilai puncak dengan kenyaringan bunyi yang dihasilkan.

(v) Hence, deduce the relationship between the loudness of the sound and theamplitude of the wave.Seterusnya, deduksikan hubungan antara kenyaringan bunyi denganamplitud gelombang itu.

[5 marks]

23

(c) Diagram 10.3 shows a boat using sound waves to measure the depth of the sea.Rajah 10.3 menunjukkan sebuah bot menggunakan gelombang bunyi untukmengukur kedalaman laut.


(i) Using your knowledge of the nature and phenomena of waves, explain howthe following aspects of the wave affects the results obtained.Menggunakan pengetahuan anda tentang sifat dan fenomena gelombang,terangkan bagaimana aspek gelombang yang berikut mempengaruhikeputusan yang diperoleh.

· Frequency of the wavesFrekuensi gelombang

· Energy of the wavesTenaga gelombang

[4 marks](ii) List the equipment needed for the measurement.

Senaraikan peralatan yang diperlukan untuk pengukuran itu. [4 marks]

(iii) Explain how the depth of the sea is determined.Terangkan bagaimana kedalaman laut ditentukan.

[2 marks]

Transmitted soundBunyi terpancar

Reflected soundBunyi terpantul

24

Section CBahagian C[20 marks]


11 Diagram 11.1 shows the basic components and four processes in a refrigerator.Rajah 11.1 menunjukkan komponen asas dan empat proses dalam sebuah peti sejuk.


(a) (i) Explain, using the kinetic theory, how the coolant changes from a gas to aliquid in Process 2.Jelaskan, dengan menggunakan teori kinetik, bagaimana bahan penyejuk itubertukar menjadi cecair dalam Proses 2.

[3 marks]

(ii) Explain, in terms of latent heat, how the coolant removes heat in Process 3and Process 4.Jelaskan, dalam sebutan haba pendam, bagaimana bahan penyejuk itumengeluarkan haba dalam Proses 3 dan Proses 4.

[2 marks]

Process 4 / Proses 4The coolant absorbs heat fromthe interior of the refrigeratorBahan penyejuk menyerap habadari bahagian dalam peti sejuk

Process 3 / Proses 3The coolant expands andchanges from a liquid to a gasBahan penyejuk mengembangdan bertukar dari cecair ke gas

Process 1 / Proses 1The compressor compressesthe coolant gasPemampat memampat gasbahan penyejuk

Process 2 / Proses 2Heat is removed and the gaschanges into a liquidHaba dikeluarkan dan gasbertukar menjadi cecair

25

(b) Table11.1 and Table 11.2 show some characteristics of the coolants and the pipesthat carry the coolant in the refrigerator.Jadual 11.1 dan Jadual 11.2 menunjukkan beberapa ciri bahan penyejuk dansaluran yang membawa bahan penyejuk dalam peti sejuk itu.

CoolantBahan penyejuk

Specific latent heat of vapourisationHaba pendam tentu pengewapan

J kg-1

Boiling pointTakat didih

oCP 1.5 × 105 35Q 7.6 × 105 10R 4.5 × 105 -10

Table 11.1 / Jadual 11.1

PipeSaluran

Specific heat capacityMuatan haba tentu

J kg–1 oC–1

DiameterDiameter

X 220 Big / BesarY 350 Small / KecilZ 180 Big / Besar


Explain the suitability of each characteristic of the coolant and that of the pipe sothat the refrigerator can work efficiently.State which coolant and which pipe should be chosen.Terangkan kesesuaian setiap ciri bahan penyejuk dan saluran supaya peti sejukitu boleh berfungsi dengan cekap.Nyatakan bahan penyejuk dan saluran manakah patut dipilih.

[10 marks]

(c) 500 g of water at 30 oC is placed in the freezer of a refrigerator.500 g air pada 30 oC diletakkan ke dalam peti pembeku sebuah peti sejuk.[Specific latent heat of fusion of ice /Haba pendam tentu perlakuran ais = 3.34 × 105 J kg–1,

Specific heat capacity of water / Muatan haba tentu air = 4 200 J kg–1 oC–1]

(i) Explain the meaning “specific heat capacity of water is 4 200 J kg–1 oC–1”

Terangkan maksud “muatan haba tentu air = 4 200 J kg–1 oC–1”[1 mark]

(ii) Calculate the heat removed when the water is cooled to 0 oC.Hitungkan haba yang dikeluarkan apabila air itu disejukkan hingga ke 0 oC.

[2 marks]

(iii) Calculate the heat removed when the water at 0 oC is frozen into ice at 0 oC.Hitungkan haba yang dikeluarkan apabila air pada 0 oC dibekukan menjadiais pada 0 oC.

[2 marks]

26

N S

G

Magnet moved towards coilMagnet digerakkan ke arah gegelung

X

12 (a) Diagram 12.1 shows a magnet being used to induce a current in a coil.Rajah 12.1 menunjukkan sebatang magnet digunakan untuk mengaruh arus didalam suatu gegelung.


(i) State Lenz's law.Nyatakan hukum Lenz.

[1 mark](ii) Explain how current is induced in the coil. State the pole at X.

Terangkan bagaimana arus diaruh di dalam gegelung itu. Nyatakan kutubdi X.

[4 marks]

27

(b) Diagram 12.2 shows an alternating current generator which will be used to supplya large direct current to an electrical component R.Rajah 12.2 menunjukkan sebuah penjana arus ulangalik yang digunakan untukmembekal suatu arus terus yang besar kepada sebuah komponen elektrik R.


Table 12.1 shows the characteristics of four alternating current generators, W, X,Y and Z.Jadual 12.1 menunjukkan ciri-ciri bagi empat penjana arus ulangalik W, X, Yand Z.

GeneratorPenjana

Number of turns of coilBilangan lilitan gegelung

Strength of magnetsKekuatan magnet

W 6 000 High / Tinggi

X 10 000 Medium / Sederhana

Y 9 000 High / Tinggi

Z 5000 Medium / Sederhana


Rotation / Putaran

RRectification circuitLitar rektifikasi

28

Table 12.2 shows the characteristics of four rectification circuits, A, B, C and D tobe used with one of the generators.Jadual 12.2 menunjukkan ciri-ciri bagi empat litar rektifikasi, A, B, C dan D yangakan digunakan bersama satu daripada penjana itu

Rectification circuitLitar rektifikasi

Arrangement of componentsSusunan komponen

Capacitance of CKapasitans bagi C

A

One diode / Satu diod

LargeBesar

B

One diode / Satu diod

SmallKecil

C

Four diodes / Empat diod

LargeBesar

D

Four diodes / Empat diod

SmallKecil


RC

RC

C R

C R

29

You are asked to investigate the characteristics of the four generators shown inTable 12.1 and the four rectification circuits shown in Table 12.2.Study the specifications of all the four generators and four rectification circuitsfrom the following aspects:– Number of turns of coil in the generator– Strength of the magnets in the generator– Arrangement of components in the rectification circuit– Capacitance of the capacitor in the rectification circuit.

Explain the suitability of the aspects.State the most suitable generator and the most suitable rectification circuit to beused.

Anda dikehendaki menyiasat ciri-ciri bagi empat penjana dalam Jadual 12.1 danempat litar rektifikasi dalam Jadual 12.2.Kaji spesifikasi bagi empat penjana dan empat litar rektifikasi dari aspek berikut:– Bilangan lilitan bagi gegelung penjana– Kekuatan magnet bagi penjana– Susunan komponen dalam litar rektifikasi– Kapasitans bagi kapasitor dalam litar rektifikasi

Jelaskan aspek-aspek tersebut.Nyatakan penjana yang paling sesuai dan litar rektifikasi yang paling sesuaidigunakan.

[10 marks]

(c) Diagram 12.3 shows a transformer with a bulb at its output terminals. The bulblights up at normal brightness.Rajah 12.3 menunjukkan sebuah transformer dengan sebuah mentol di terminaloutputnya. Mentol itu menyala dengan kecerahan normal.


(i) State the type of transformer.Nyatakan jenis transformer itu. [1 mark]

(ii) Determine the value of NP.Tentukan nilai NP. [2 marks]

(iii) Calculate the efficiency of the transformer.Hitung kecekapan transformer itu. [2 marks]

END OF QUESTION PAPERKERTAS SOALAN TAMAT

NP NS = 150

12 V 24 W240 V

IP = 0.125 A

30


1. This question paper consists of three sections: Section A, Section B and Section C.Kertas soalan ini mengandungi tiga bahagian: Bahagian A, Bahagian B danBahagian C.

2. Answer all questions in Section A. Write your answers for Section A in the spacesprovided in the question paper.Jawab semua soalan dalam Bahagian A. Jawapan anda bagi Bahagian A hendaklahditulis pada ruang yang disediakan dalam kertas soalan ini.

3. Answer one question from Section B and one question from Section C. Write youranswers for Section B and Section C on your own writing paper.Jawab satu soalan daripada Bahagian B dan satu soalan daripada Bahagian C.Jawapan anda bagi Bahagian B dan Bahagian C hendaklah ditulis dalam kertas tulisanda sendiri.

4. Show your working, it may help you to get marks.Tunjukkan kerja mengira, ini membantu anda mendapatkan markah.

5. If you wish to change your answer, cross out the answer that you have done. Then writedown the new answer.Jika anda hendak menukar sesuatu jawapan, batalkan jawapan yang telah dibuat.Kemudian tulis jawapan yang baru.

6. The diagrams in the questions provided are not drawn to scale unless stated.Rajah yang mengiringi soalan tidak dilukis mengikut skala kecuali dinyatakan.

7. A list of formulae is provided on page 2.Satu senarai formula disediakan di halaman 2.

8. The marks allocated for each question or part question are shown in brackets.Markah yang diperuntukkan bagi setiap soalan atau ceraian soalan ditunjukan dalamkurungan.

9. You are advised to spend 90 minutes to answer questions in Section A, 30 minutes forSection B and 30 minutes for Section C.Anda dinasihati supaya mengambil masa 90 minit untuk menjawab soalan dalamBahagian A, 30 minit untuk Bahagian B dan 30 minit untuk Bahagian C.

10. You may use a non-programmable scientific calculator.Anda dibenarkan menggunakan kalkulator saintifik yang tidak boleh diprogram.

1

SULIT

NO. KAD PENGENALAN

ANGKA GILIRAN

NAMA: …….…………......…….............……..………. TINGKATAN: …….....………




211 jam Satu jam tiga puluh minit


1. Kertas soalan ini adalah dalam dwibahasa.

2. Soalan dalam bahasa Inggeris mendahuluisoalan yang sepadan dalam bahasaMelayu.

3. Calon dibenarkan menjawab keseluruhanatau sebahagian soalan sama ada dalambahasa Inggeris atau bahasa Melayu.

4. Calon dikehendaki membaca maklumat dihalaman belakang kertas soalan ini.


Untuk Kegunaan Pemeriksa

Bahagian Soalan Markahpenuh

Markahdiperoleh

1 16A

2 12

3 12B

4 12

Jumlah

2

Section ABahagian A[28 marks]

Answer all questions in this section.Jawab semua soalan dalam bahagian ini.

1 A student carries out an experiment to study the relationship between the angle ofincidence, i, and the angle of refraction, r, when a light ray passes from air to asemicircular glass block. The apparatus set-up for this experiment is shown in Diagram1.1.

Seorang murid menjalankan satu eksperimen untuk mengkaji hubungan antara suduttuju, i, dan sudut biasan, r, apabila sinar cahaya merambat dari udara ke blok kacasemibulatan. Susunan radas bagi eksperimen ini ditunjukkan pada Rajah 1.1.


The ray box is adjusted so that a ray of light enters the semicircular glass block at anangle of incidence, i = 15o.The angle of refraction, r, is measured with a protractor.The experiment is repeated with angles of incidence, i = 30o, 45o, 60o and 75o.The corresponding measurements made by the protractor are shown in Diagrams 1.2,1.3, 1.4, 1.5 and 1.6.

Kotak sinar dilaraskan supaya satu sinar cahaya memasuki blok kaca semibulatanpada sudut tuju, i = 15o.Sudut biasan, r, diukur oleh sebuah protraktor.Pengukuran sepadan yang dibuat oleh protraktor ditunjukkan pada Rajah 1.2, 1.3, 1.4,1.5 dan 1.6.

i

r

Ray boxKotak sinarTo power supply

Ke bekalan kuasa

Semi-circular glass blockBlok kaca semibulatan

Incident raySinar tuju

Refracted raySinar biasan

3

i = 15o

sin i = …………

r = ……….

sin r = …………

15o

i = 30o

sin i = …………

r = ……….

sin r = …………

30o



4



i = 45o

sin i = …………

r = ……….

sin r = …………

45o

60oi = 60o

sin i = …………

r = ……….

sin r = …………

5


(a) For the experiment described on page 2, identify:

Bagi eksperimen yang diterangkan di halaman 2, kenal pasti:(i) The manipulated variable

Pembolehubah dimanipulasikan

.…......................................................................................................................[1 mark]

(ii) The responding variablePembolehubah bergerak balas

.…......................................................................................................................[1 mark]

(iii) The constant variable

Pembolehubah dimalarkan

.…......................................................................................................................[1 mark]

i = 75o

sin i = …………

r = ……….

sin r = …………

75o

6

(b) For this part of the question, write your answers in the spaces provided in thecorresponding diagrams.

Untuk bahagian soalan ini, tulis jawapan anda dalam ruang yang disediakandalam rajah-rajah yang sepadan.

Based on Diagrams 1.2, 1.3, 1.4, 1.5 and 1.6:

Berdasarkan Rajah 1.2, 1.3, 1.4, 1.5 dan 1.6:

(i) Record the readings, r, of the protractor.Catat bacaan, r, protraktor itu.

[2 marks]

(ii) For each value of i, calculate and record the value of sin i.Bagi setiap nilai i, hitung dan catat nilai sin i.

[1 mark]

(iii) Calculate sin r for each value of r in 1(b)(i).Record the value of sin r.

Hitung sin r untuk setiap nilai r di 1(b)(i).Catat nilai sin r.

[2 marks](c) Tabulate your results for all values of i, sin i and sin r in the space below.

Jadualkan keputusan anda bagi semua nilai i, sin i dan sin r dalam ruang dibawah.

[2 marks](d) On the graph paper provided, plot a graph of sin i against sin r.

Pada kertas graf yang disediakan, lukis graf sin i melawan sin r.[5 marks]

(e) Based on your graph in 1(d), state the relationship between sin i and sin r.Berdasarkan graf anda di 1(d), nyatakan hubungan antara sin i dan sin r.

....................................................................................................................................[1 mark]

7

Graph of sin i against sin rGraf sin i melawan sin r

8

20

40

60

80

100

100

120

IB / μA0 200 300 400 500 600

IC / mA Graph of IC against IBGraf IC melawan IB

2 A student carries out an experiment to investigate the relationship between the collectorcurrent, IC, and the base current, IB, for a transistor.

Seorang pelajar menjalankan eksperimen untuk mencari hubungan antara aruspengumpul dengan arus tapak bagi suatu transistor.

The result of this experiment is shown in the graph of IC against IB in Diagram 2.

Keputusan eksperimen itu ditunjukkan oleh graf IC melawan IB pada Rajah 2.

Diagram 2 / Rajah 2

8

9

(a) Based on the graph in Diagram 2,Berdasarkan graf pada Rajah 2,

(i) State the relationship between IC and IB.

Nyatakan hubungan antara IC dan IB.

.…......................................................................................................................[1 mark]

(ii) Determine the value of IB when IC = 100 mA.Show on the graph, how you determine the value of IB.

Tentukan nilai IB apabila IC = 100 mA.Tunjukkan pada graf bagaimana anda menentukan nilai IB.

.…......................................................................................................................[3 marks]

(b) (i) Calculate the gradient, m, of the graph.Show on the graph how you determine the gradient m.Hitung kecerunan, m, bagi graf itu.Tunjukkan pada graf bagaimana anda menentukan kecerunan m.

m = …………………………[3 marks]

(ii) The gradient of the graph represents amplification factor of the transistor.What is meant by amplification factor?Kecerunan graf mewakili faktor amplifikasi suatu transistor.Apakah yang dimaksudkan dengan faktor amplifikasi?

.…......................................................................................................................[1 mark]

10

(c) The emitter current, IE, is related to the base current, IB, and collector current, ICthrough the formula;

Arus pengeluar, IE, ada hubungan dengan arus tapak, IB, dan arus pengumpul, ICmelalui formula;

IE = IB + IC

Determine the emitter current, IE, , when the base current, IB = 350 μA.Show on the graph, how you determine the value of collector current, IC.Tentukan arus pengeluar apabila arus tapak, IB = 350 μA. Tunjukkan pada grafbagaimana anda mendapatkan nilai arus pengumpul, IC.

[3 marks]

(d) State one precaution that should be taken during the experiment.Nyatakan satu langkah berjaga-jaga yang perlu diambil semasa eksperimendijalankan.

....................................................................................................................................[1 mark]

11

Section BBahagian B[12 marks]


3 Diagram 3 shows two pails, R and S, with R containing more water than S. Both thepails are exposed to sunlight. After a few hours it was observed that the water in pail Sis hotter than the water in pail R.Rajah 3 menunjukkan dua baldi, R dan S, dengan R mengandungi lebih banyak airdaripada baldi S. Kedua-dua baldi didedahkan kepada cahaya matahari. Selepasbeberapa jam diperhatikan air dalam baldi S lebih panas daripada air dalam baldi R.

Diagram 3 / Rajah 3

Based on the information and observation:

Berdasarkan maklumat dan pemerhatian tersebut:

(a) State one suitable inference.Nyatakan satu inferens yang sesuai.

[1 mark]

(b) State one suitable hypothesis.Nyatakan satu hipotesis yang sesuai.

[1 mark]

(c) With the use of apparatus such as beaker, thermometer, immersion heater andother apparatus, describe one experiment to investigate the hypothesis stated in3(b).Dengan menggunakan radas seperti bikar, termometer, pemanas rendam danradas lain, terangkan satu eksperimen untuk menyiasat hipotesis yang dinyatakandi 3(b).

R

SunlightSinar matahari

S

SunlightSinar matahari

12

In your description, state clearly the following:Dalam penerangan anda , nyatakan dengan jelas perkara berikut:

(i) The aim of the experiment.

Tujuan eksperimen.

(ii) The variables in the experiment.Pembolehubah dalam eksperimen.

(iii) The list of apparatus and materials.

Senarai radas dan bahan.

(iv) The arrangement of the apparatus.Susunan radas.

(v) The procedure of the experiment which should include one method ofcontrolling the manipulated variable and one method of measuring theresponding variable.

Prosedur eksperimen yang mesti termasuk satu kaedah mengawalpembolehubah dimanipulasi dan satu kaedah mengukur pembolehubahbergerak balas.

(vi) The way you tabulate the data.Cara anda menjadualkan data.

(vii) The way you analyse the data.

Cara anda menganalisis data.[10 marks]

13

4 A student who moves his ear near a vibrating tuning fork hears loud and soft soundsalternately.Diagram 4.1 shows the positions of loud sounds are closer together.Diagram 4.2 shows the positions of loud sound are further apart.

Seorang pelajar yang menggerakkan telinganya dekat dengan tala bunyi yang bergetarmendengar bunyi kuat dan lemah secara berselang-seli.Rajah 4.1 menunjukkan kedudukan bunyi-bunyi kuat lebih rapat.Rajah 4.2 menunjukkan kedudukan bunyi-bunyi kuat lebih jauh daripada satu samalain.


Based on the information and observation:Berdasarkan maklumat dan pemerhatian tersebut:

(a) State one suitable inference.Nyatakan satu inferens yang sesuai.

[1 mark](b) State one suitable hypothesis.

Nyatakan satu hipotesis yang sesuai.[1 mark]

LL LL L L L

Tuning fork : arms further apartTala bunyi : jarak antara lengan

lebih jauh

L

Tuning fork : arms nearerTala bunyi : jarak antara lengan

lebih rapat

Arm of tuning forkLengan tala bunyi

Ear of studentTelinga pelajar

Ear of studentTelinga pelajar

L : Loud sound heardL : Bunyi kuat didengar

14

(c) With the use of apparatus such as two loudspeakers, signal generator and otherapparatus, describe one experiment to investigate the hypothesis stated in 4(b).

Dengan menggunakan radas seperti dua pembesar suara, penjana isyarat danradas lain, terangkan satu eksperimen untuk menyiasat hipotesis yang dinyatakandi 4(b).

In your description, state clearly the following:Dalam penerangan anda, nyatakan dengan jelas perkara berikut:

(i) The aim of the experiment.

Tujuan eksperimen.

(ii) The variables in the experiment.Pembolehubah dalam eksperimen.

(iii) The list of apparatus and materials.

Senarai radas dan bahan.

(iv) The arrangement of the apparatus.Susunan radas.

(v) The procedure of the experiment which should include one method ofcontrolling the manipulated variable and one method of measuring theresponding variable.

Prosedur eksperimen yang mesti termasuk satu kaedah mengawalpembolehuhah dimanipulasikan dan satu kaedah mengukur pembolehubahbergerak balas.

(vi) The way you tabulate the data.Cara anda menjadualkan data.

(vii) The way you analyse the data.

Cara anda menganalisis data.[10 marks]

END OF QUESTION PAPER

KERTAS SOALAN TAMAT

15


1. This question paper consists of two sections: Section A and Section B.Kertas soalan ini mengandungi dua bahagian: Bahagian A dan Bahagian B.

2. Answer all questions in Section A. Write your answers for Section A in the spaceprovided in this question paper.

Jawab semua soalan dalam Bahagian A. Jawapan anda bagi Bahagian A hendaklahditulis pada ruang yang disediakan dalam kertas soalan ini.

3. Answer one question from Section B. Write your answers for Section B on your ownwriting paper. You may use equations, diagram, tables, graphs and other suitablemethods to explain your answers.Jawab satu soalan daripada Bahagian B. Tulis jawapan bagi Bahagian B pada kertastulis anda sendiri. Anda boleh menggunakan persamaan, rajah, jadual, graf dan caralain yang sesuai untuk menjelaskan jawapan anda.

4. Show your working, it may help you to get marks.Tunjukkan kerja mengira, ini membantu anda mendapatkan markah.

5. The diagrams in the questions are not drawn to scale unless stated.Rajah yang mengiringi soalan tidak dilukis mengikut skala kecuali dinyatakan.

6. The marks allocated for each question or sub-part of a question are shown in brackets.Markah yang diperuntukkan bagi setiap soalan atau ceraian soalan ditunjukkan dalamkurungan.

7. If you wish to change your answer, cross out the answer that you have done. Then writedown the new answer.Jika anda hendak menukar jawapan, batalkan jawapan yang telah dibuat. Kemudiantulis jawapan yang baru.

8. You may use a non-programmable scientific calculator.

Anda dibenarkan menggunakan kalkulator saintifik yang tidak boleh diprogram.9. You are advised to spend 60 minutes to answer questions in Section A and 30 minutes

for Section B.Anda dinasihati supaya mengambil masa 60 minit untuk menjawab soalan dalamBahagian A dan 30 minit untuk Bahagian B.

4531



PEPERIKSAAN PERCUBAAN SPM 2009

PHYSICS

PERATURAN PEMARKAHAN

Peraturan pemarkahan ini mengandungi 16 halaman bercetak

4531

2

PEPERIKSAAN PERCUBAAN SPM 2009KEDAH DARUL AMAN

PERATURAN PEMARKAHAN

PHYSICS

PAPER MARKSPaper 1 50Paper 2 100Paper 3 40

Total 190

Jumlah markah diskalakan kepada 100%

PHYSICSPaper 1

1 C 26 B2 D 27 B3 D 28 A4 B 29 C5 D 30 A6 A 31 C7 B 32 B8 A 33 C9 D 34 D

10 C 35 A11 B 36 D12 D 37 B13 C 38 A14 C 39 A15 A 40 A16 D 41 D17 A 42 B18 D 43 A19 C 44 B20 D 45 B21 B 46 B22 A 47 A23 A 48 C24 C 49 B25 B 50 A

3

PHYSICSPaper 2

SECTION A

MARKNO. MARKING CRITERIA SUB TOTAL1 (a) (i) State the physical quantity correctly 1

- Voltage/potential difference

(ii) State the error correctly 1- Zero error//systematic error

(b) (i) State the instrument correctly 1- Y/micrometer

(ii) State the reason correctly 1- The scale has a smaller division 4

2(a) (i) State the explanation correctly 1- energy is used to break the bonds//change the state of matter

(ii) State the explanation correctly 1- energy is used to increase the kinetic energy of the molecules

(b) Correct substitution 1- 0.2 x 3.36 x 105

Correct answer and correct unit 1- 6.72 x 104 J

(c) Mark on the box correctly 1- There is no net transfer of energy between the water and the

surroundings5

3(a) State the unit correctly 1- N m—2 // kg m—1 s—2

(b) State one factor correctly 1- depth//density

(c) (i) Correct substitution 1- 1010 x 2.5 x 10

Correct answer and correct unit 1- 25250 N

(ii) Show the substitution correctly 1- 125000 - 25250

Correct answer and correct unit 1- 99750 N

6

4

MARKNO. MARKING CRITERIA SUB TOTAL4(a) Name component T correctly 1

- Thermistor//heat sensitive resistor

(b) Underline the words correctly- resistance decreases- IB increases

11

(c) (i) Correct answer and correct unit 1- 0.08 s

(ii) Correct substitution 1

-08.01

Correct answer and correct unit 1- 12.5 Hz

(iii) Sketch the trace correctly 1- Sinusoidal with four complete cycles 7

5(a) (i) Compare the speed of light correctly 1- Speed of light is higher in air

(ii) Compare the speed of light correctly 1- Speed of light is higher in air

(iii) State the relationship correctly 1- If the speed of light decreases, then the light ray will bend

towards the normal

(iv) State the phenomenon correctly 1- refraction

(b) (i) Draw the light rays correctly- At least one light ray from point P bend away from the normal

after emerging into the air- Extrapolate the ray to point Q

1

1


-2.16.1

Correct answer with no unit in decimal 1- 1.33 8

5

MARKNO. MARKING CRITERIA SUB TOTAL6(a) State the meaning correctly 1

- Time for the activity of the radioactive substance to become halfof the original activity // Time taken for half of the mass ofradioactive substance to decay

(b) (i) State the half life correctly- X : 10 minutes- Y : 5 minutes

11

(ii) State the answer correctly- X : 50 %- Y : 25 %

11

(c) State the comparison correctly 1- The decay rates for substance X is slower//vice versa

State the relationship correctly 1- The shorter the half life, the higher the decay rate

(d) Give the reason correctly 1- Background radiation 8

7(a) State the energy changes correctly 1- electrical energy to (gravitational) potential energy

(b) (i) Correct substitution 1- 1.7 x 10

Correct answer and correct unit- 17 W

1


-5.2

5.1x10x2

Correct answer with correct unit- 12 W 1

(iii) Correct substitution 1

100% x1712

Correct answer with correct unit- 70.6 % 1

(c) State the change on the ammeter correctly 1- ammeter reading decreases

Give explanation correctly 1- less work done // less power required

(d) Give one suggestion correctly- lubricate the moving parts to reduce friction 1 10

6

MARKNO. MARKING CRITERIA SUB TOTAL8(a) (i) Name the law correctly 1

- Hooke’s Law

(ii) Mark a cross on each line correctly 1 + 1- All correct (2 marks)- 1 or 2 correct (1 mark)

(b) (i) State the energy correctly 1- Elastic potential energy

(ii) Determine the force correctly 1- From the graph, F = 60 N

Correct substitution- ½ (60)(8)// ½ (60)(0.08)

1

Correct answer with correct unit 1- 240 N cm // 2.4 J // 2.4 N m

(c) (i) State the maximum weight correctly 1- 80 N

(ii) Name the two springs correctly 1 + 1- Spring P- Spring Q

(iii) Give the choice correctly 1- Spring Q

Give the explanation correctly 1- More sensitive//smaller force constant 12

7

SECTION B

MARKNO MARKING CRITERIA SUB TOTAL9(a) State the meaning correctly 1

- Product of mass and velocity / /momentum = mass x velocity 1

(ii) State the total momentum in Diagram 9.1 correctly- Zero

Compare the total momentum correctly

1

1- Total momentum before the bullet is fired = total momentum

after the bullet is fired.

Compare the magnitude of the momentum of the bullet andpistol correctly

1

- Equal

Compare the direction of the momentum of the bullet andpistol correctly

1

- Opposite

Name the physics principle correctly- Principle of Conservation of Momentum

15

(b) Describe the propulsion of a rocket engine correctly- Liquid oxygen and liquid hydrogen/fuel is pump into the

combustion chamber for combustion- The exhaust gas is ejected out of the rocket nozzle at high speed.- The ejected exhaust gas at high speed has a large momentum.- According to the Principle of Conservation of Momentum, the

rocket acquires a large momentum forward

1

111 4

(c) State aspect of blade correctly 1 - Using bigger blades/increase the number of blades/increase the

speed of blade

State reason for aspect of forces and motion correctly- Increase the air intake

State aspect of material of blade correctly- Blade made of strong material

State reason for aspect of material of blade correctly- Can withstand strong pressure/it will not break easily

1

1

1

State aspect of fuel injector correctly- Increase the number of fuel injectors// add more fuel injectors

State reason for aspect of fuel injector correctly- More fuel to be burnt to produce greater thrust

1

1

8

State aspect of combustion chamber correctly- Increase the size of the combustion chamber

State reason for aspect of combustion chamber correctly- More space for the fuel to be burnt

State aspect of nozzle correctly- Decrease the diameter of the nozzle

1

1

1

State reason for aspect of nozzle correctly- Exhaust gas ejected at higher velocity/higher momentum

1 10

20

9

MARKNO MARKING CRITERIA SUB TOTAL 10(a) (i) State the meaning correctly 1

- A wave in which the vibration of particles in the medium isparallel to the direction of propagation of the wave. 1

(ii) Explain the production of sound waves correctly- When a tuning fork vibrates, layers of air vibrate- The particles of air undergo s series of compression and

rarefaction- Sound energy is propagated through the air in the form of

waves

111

1 4

(b) (i) Compare the amplitudes of the wave form correctly- The amplitude in Diagram 10.2 is higher

1

(ii) Compare the peak values of the wave form correctly- The peak value in Diagram 10.2 is higher

1

(iii) State the relationship between amplitude and peak valuecorrectly- The higher the amplitude, the higher the peak value

1

(iv) State the relationship between the peak value and loudnesscorrectly- The higher the peak value, the louder is the sound.

1

(v) State the relationship between the loudness and the amplitudecorrectly- The higher the amplitude, the louder is the sound

1 5

(c) (i) Suggest the type of frequency correctly 1- The boat must use high frequency sound wavesGive the reason correctly- Smaller wavelength, less diffractedSuggest the type of energy correctly- High energy wavesGive the reason correctly- High penetrating power

1

1

14

(ii) Suggest the list of equipments needed for the measurementTransmitterReceiverSound generatorCRO[Any of the three above] 3

(iii) State the method of measuring the time- The time taken, t from the transmitter to the receiver is recorded

by the CRO- The speed of the sound wave, v in water is given

- The depth of the sea, d =2vt

1

1

1

320

10

SECTION C

MARKNO MARKING CRITERIA SUB TOTAL11(a) (i) State the explanation correctly

- Temperature of the coolant decreases- Speed of the molecules decreases- Distance between molecules decreases

111 3

(ii) State the explanation correctly- When coolant changes from a liquid to a gas, latent heat is

required.- Latent heat is obtained from the interior of the refrigerator.

11 2

(b) State the specific latent heat of vaporisation and reasoncorrectly

1+1

1 High specific latent heat of vaporization2 Rate of heat removed is faster

State the boiling point and reason correctly 1+13 Coolant with low boiling point4 Easily can to vapour/gas

State the specific heat capacity and reason correctly 1+15 Low specific heat capacity6 Can be heat up (cool down) faster

State the diameter and reason correctly 1+17 Big diameter8 Can carry more coolant

State most suitable choice of coolant and justification correctly 1QLow specific latent heat of vaporization and low boiling point

State most suitable pipe and justification correctly 1ZLow specific heat capacity and big diameter

10

(c) (i) State the meaning correctlyThe quantities of heat required to change the temperature of 1 kgof water by 1 oC is 4200 J.

1

(ii) Correct substitution0.5 x 4200 x 30 1

Correct answer and correct unit63 000 J 1

(iii) Correct substitution0.5 x 3.34.x 105 1

Correct answer and correct unit1.67 x 105 J 1 5

20

11

MARKNO MARKING CRITERIA SUB TOTAL12(a) (i)

(ii)

State Lenz’s Law correctly- The direction of the induced current is such as to oppose the change causing it.

State the explanation correctly

1

- The solenoid experiences a change in the magnetic flux/magnetic field (lines)- According to Faraday’s Law of electromagnetic induction- An e.m.f. is induced in the coil- X is north pole

1

111

(b) State the suitable number of turns of coil in the generator andreason correctly

1+1

- High number of turns of coil- Larger force acting on the coil / higher electromagnetic field

strength

State the suitable strength of the magnets in the generator andreason correctly

1+1

- High strength magnets- Larger force acting on the coil

State the suitable arrangement of components in therectification circuit

1+1

- Using 4 diodes and a capacitor- 4 diodes to produce full-wave rectification and capacitor as a

smoother

State the suitable capacitance of the capacitor in therectification circuit

1+1

- Large capacitance- To produce a constant output voltage

State most suitable choice of generator and justificationcorrectly

1

- Y and high number of turns of coil and high strength of magnets

State most suitable choice rectification circuit and justificationcorrectly

1

- C, 4 diodes and a capacitor with high capacitance

(c) (i) State the type of transformer correctly- Step-down transformer

1


12(240)(150)

Correct answer and no unit 13000

(iii) Correct substitution

100)240)(125.0(

24´

1

Correct answer with unit 180% // 0.8 5

20

12

PHYSICSPaper 3

SECTION A

MARKNO MARKING CRITERIA SUB TOTAL

1(a) (i) State the manipulated variable correctlyAngle of incidence / i 1 1

(ii) State the responding variable correctlyAngle of refraction / r // sin r 1 1

(iii) State the constant variable correctlyGlass block // Semicircular glass block // Refractive index 1 1

(b) (i) Record the readings of r correctlyDiagram 1.2 : 11o

Diagram 1.3 : 20o

Diagram 1.4 : 29o

Diagram 1.5 : 36o

Diagram 1.6 : 41o

2 2

Note : 1. All 5 values correct – 2 marks 2. 3 or 4 values correct – 1 mark

(ii) State the values of sin i correctlyDiagram 1.2 : 0.2588Diagram 1.3 : 0.5000Diagram 1.4 : 0.7071Diagram 1.5 : 0.8660Diagram 1.6 : 0.9659

1 1

Note : 1. Accept e.c.f. from (b)(i) 2. All 5 values correct – 2 marks

3. 3 or 4 values correct – 1 mark4. Not necessary to have consistent number of d.p.

(iii) State the values of sin r correctlyAll 5 values of sin r correctDiagram 1.2 : 0.1908Diagram 1.3 : 0.3420Diagram 1.4 : 0.4848Diagram 1.5 : 0.5878Diagram 1.6 : 0.6561

2 2

Note : 1. Accept e.c.f. from (b)(i) 2. All 5 values correct – 2 marks 3. 3 or 4 values correct – 1 mark 4. Not necessary to have consistent number of d.p.

13

(c) Tabulate the results for i, sin i, r and sin r correctly

i sin i r sin r15o 0.2588 11o 0.190830o 0.5000 20o 0.342045o 0.7071 29o 0.484860o 0.8660 36o 0.587875o 0.9659 41o 0.6561

Table with 4 columns correctly labelledsin i and sin r consistent to 2, 3 or 4 decimal places

11 2

(d) Draw a complete graph of sin i against sin r

Give a tick (ü) based on the following:A sin i at the y-axis, sin r at the x-axisB Uniform scale at both axesC 5 points plotted correctly [Note : 4 points plotted correctly : ü]D Straight line of best fit is drawnE Minimum size of graph 5 x 4 big squares

(Big square : 2 cm x 2 cm) (From the origin to the last point)

Marks awarded :

Number of ü Marks6 ü 5

4 – 5 ü 43 ü 32 ü 21 ü 1

üüüü

üü

55

(e) State the correct relationship between sin i and sin rsin i is directly proportional to sin r 1 1

16

14


2(a) (i) State the correct relationshipIC increases linearly with IB // IC is directly proportional to IB 1 1

(ii) Determine the value of IB correctlyIB = 500 μA 1Draw the extrapolation line to the point (500, 100) or beyond 1

Draw the lines IC = 100 mA and IB = 500 μA 1 3

(b) (i) Calculate the gradient of the graph, m, and state the value of m- Draw a sufficiently large triangle 1- Correct substitution (Follow candidate’s triangle) 1- State the correct value 200 1 3

(ii) State the correct meaning

The ratio of the change in IC to the change in IB //B

C

IDDI 1 1

(c) Determine the value of IE and state the correct value of IE- Intrapolation line from IB = 350 μA to the given line and from the given line to the IC – axis 1

- State the correct value of ICIC = 70 mA // 70 000 μA 1

- State the correct value of IE 70.35 mA // 70 350 μA 1 3

(d) State one correct precaution- Position of the eyes such that line of sight is perpendicular to the

scale of the meter to avoid parallax error

- Current is switched off after readings are taken

1

1

Max1

1

12

15

SECTION B


3 (a) State a suitable inference The mass // volume affects the rise in temperature // temperature 1 1

(b) State a relevant hypothesis The greater the mass // volume, the smaller the rise in temperature

// temperature 1 1(c) Describe a complete and suitable experimental framework

(i) State the aim of experiment To investigate the relationship between the mass and rise intemperature (of water) 1

(ii) State the manipulated variable and the responding variable Manipulated variable : Mass Responding variable : Increase in temperature

State the constant variable Constant variable : Heat supplied // Time of heating //

Power of the heater //

1

1

(iii) List out the important apparatus and materialsBeaker, water, thermometer, immersion heater, stopwatch, balancefor measuring mass

1

(iv) Draw or describe a functionable arrangement of the apparatus1

(v) State the method of controlling the manipulated variablePut a mass of 100 g of water in a beaker 1

(vi) State the method of measuring the responding variableSwitch on the heater for 5 minutes and record the temperature rise. 1

(vii) State how the procedure is repeated to obtain at least 5 sets ofresultsRepeat the experiment with 150 g, 200 g, 250 g, 300 g and 350 gof water.

1

(viii) Tabulate the data

Mass of water / g Temperature rise / oC100150200250300350 1

(ix) State how data will be analysed The graph of temperature rise against mass is drawn 1 10

Note : Mark accordingly if the manipulated variable is volume

. 12

16

MARKNO. MARKING CRITERIA SUB TOTAL4 (a) State a suitable inference

The distance / separation between the arms affect the distance /separation between the loud sounds 1 1

(b) State a relevant hypothesisThe smaller the distance / separation between the arms, the greateris the distance / separation between the loud sounds 1 1

(c) Describe a complete and suitable experimental framework

(i) State the aim of experimentTo investigate the relationship between the separation betweentwo loudspeakers and the distance between the position of theloud sounds 1

(ii) State the manipulated variable and the responding variableManipulated variable : separation between loudspeakersResponding variable : distance between position of loud sounds

State the constant variableConstant variable : Frequency of the sound // wavelength of

the sound // Distance of the line of observation to the loudspeakers

1

1

(iii) List out the important apparatus and materialsTwo loudspeakers, signal generator, metre rule / measuring tape,(microphone, cathode ray oscilloscope) 1

(iv) Draw or describe a functionable arrangement of the apparatus 1

(v) State the method of controlling the manipulated variableThe two loudspeakers are placed at a distance, a = 0.4 m apart. 1

(vi) State the method of measuring the responding variableThe positions of two successive loud sounds is determined and thedistance, x, between them is measured with a metre rule 1

(vii) State how the procedure is repeated to obtain at least 5 sets ofresultsThe procedure is repeated for the values of a = 0.8 m, 1.2 m, 1.6m, 2.0 m and 2.4 m 1

(viii) Tabulate the data

a / m x / m0.40.81.21.62.02.4 1

(ix) State how data will be analyzedA graph of x against a is drawn 1 10

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peperiksaan percubaan spm 2009 4531/1 physics · tolok skru mikrometer c vernier calipers angkup...

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