soalan sains (chem) penilaian 1 t4 2014

8/11/2019 Soalan Sains (Chem) Penilaian 1 T4 2014

1/8

SECTION A

11.Diagram 11 shows a structure of atom X.

Rajah 11 menunjukkan struktur atom X

DIAGRAM 11Rajah 11

Who discovered model X?Siapakah yang menemui model X?

A. BohrB. Rutherford

C. J.J. Thomson

D.

James Chadwick

12.Diagram 12 shows the symbol of Iron element.

Rajah 12 menunjukkan symbol bagi unsur Ferum

DIAGRAM 12

Rajah 12

What is the neutron number for this atom?

Apakah nombor neutron bagi atom ini?

A. 26B. 30


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C. 56

D. 8213.Among the following phenomenon, which support the kinetic theory of matter?

Antara fenomena berikut, yang manakah menyokong teori kinetik jirim?

A Brown movement

Gerakan BrownB Neutralisation

Peneutralan

C ElectrolysisElektrolisis

D HydrolysisHidrolisis

14.Which of the following represents gas particles?Antara berikut yang manakah mewakili zarah gas?

A B

C D

15.

The diagram shows the structure of atom X.Rajah menunjukkan struktur atom X.

Proton number and nucleon number of X areNombor proton dan nombor nukleon X ialah

Proton numberNombor proton

Nucleon numberNombor nukleon

A 3 3

B 3 4

C 4 10

Key

Petunjuk

Electron (Elektron)

Proton

Neutron


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D 3 7

16.The diagram shows the changes in the states of matter.

(Rajah menunjukkan perubahan keadaan zarah)

Which of the following A, B, Cor D represents boiling process?(Yang manakah A, B, Catau Dberikut mewakili proses pendidihan?)

17.When a boiling liquid is heated continuously, the temperature of the liquid willApabila cecair yang sedang mendidih terus dipanaskan, suhu cecair tersebut akan

A remain

tetapB decrease

menurunC increase

meningkatD decrease and increase

menurun dan meningkat

18.

Based on the following table, which elements are isotopes?

(Berdasarkan jadual berikut, yang manakah unsur-unsur tersebut adalah isotop?)

Element

(Unsur)

Nucleon number

(Nombor nukleon)

Proton number

(Nombor proton)

Number ofneutrons

(Bilangan neutron)

K 12 6 6

L 13 6 7

M 14 7 7

N 16 8 8

A K and LB K and MC M and ND L and M

D

Solid(pepejal)

Gas(Gas)

Liquid

(cecair)

AB

C


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19.The diagram shows an incomplete periodic table.(Rajah menunjukkan jadual berkala yang tidak lengkap)

What type of element is in the shaded area?(Apakah jenis unsur dalam kawasan berlorek?)A Metal (Logam)B Noble gas (Gas Nadir)

C Non- metal (Bukan logam)D Semimetal (Separuh logam)

20.

The diagram shows a part of periodic table.Rajah berikut menunjukkan lakaran jadual berkala.

GROUPKUMPULAN

I VIII

1 II III IV V VI VII

2 Y

3

4 X

Which of the following are true about elements X and Y?Antara berikut pernyataan yang manakah benar tentang unsur X dan Y?

I Proton number Y is 7Nombor proton Y ialah 7

II X is a metal elementX adalah unsur logam

III Y has 9 electrons

Y mempunyai 9 elektron

A I and II onlyI dan II sahaja

B I and III only

I dan III sahajaC II and III only

II dan III sahajaD I, II and III

I, II dan III

P

ERIOD

KALA


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SECTION B/BAHAGIAN B

(20 MARKS)/(20 MARKAH)

1.Diagram 1 shows an experiment to study the changes in the states of matter when it is heated.Rajah 1 menunjukkan eksperimen untuk mengkaji perubahan keadaan jirim apabila dipanaskan.

The result of the experiment is shown in Table 1.Keputusan eksperimen ditunjukkan dalam Jadual 1.

Time / minnuteMasa / minit

Temperature /0C

Suhu /0C

0 0

5 0

10 36

15 68

20 100

25 100

(a) Write one observation based on Diagram 1.Tuliskan satupemerhatianberdasarkan Rajah 1.

......................................................................................................................................................

[1 mark]

beaker

ais

thermometer

Ice before heatingAis sebelum dipanaskan Ice after heating

Ais selepas dipanaskan

thermometertermometer

ice

Diagram 1

Rajah 1

Table 1

Jadual 1

Bunsen bunner


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(b) Based on Table 1, draw a graph of temperature against time.Berdasarkan Jadual 1, lukiskan graf suhu melawan masa.

0 5 10 15 20 25 30 35

[2 marks](c) Base on the graph in (b), determine the state of matter at 76oC.

Berdasarkan graf di (b) , tentukan keadaan jirim pada suhu 76oC.

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

(d) What is the conclusion from this experiment ?Apakah kesimpulan daripada ekperimen ini?

......................................................................................................................................................

[1 mark]

20

40

60

80

100

Suhu / 0 C

Masa / min


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SECTION C

6. (a) Draw a block diagram of the Periodic Table and state two uses of the Periodic Table.[4 marks]

(b) Figure 6 shows three particles in a container.

Figure 6Study the above particles. You are required to develop a concept based on the

information in figure 6.

(i)

Identify two common characteristics.(ii) Develop an initial concept

(iii) Give two other examples in relation to the concept(iv) Explain the actual concept

[6 marks]

Substance

CopperZinc

Iron


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SKEMA SC(CHEM)

(a) Before it is heated/at the lower temperature ice is in solid condition//after it is heated/at thehigher temperature, ice melt.(Sebelum dipanaskan/pada suhu rendah ais dalam keadaan

pepejal//selepas dipanaskan/pada suhu tinggi, ais melebur/menjadi air) 1 m(b)

5 10 15 20 25 30

0 5 10 15 20 25 30All point transfer correctly (Betul semua titik) 1m

Smooth graph ( Graf licin ) 1m2m

(c) Liquid (Cecair) 1m

(d) The matter change from solid to liquid and gas when it is heated in a longer period of timeJirim berubah keadaan daripada pepejal ke cecair dan gas apabila lama

dipanaskan 1m

20

40

60

100

80

soalan sains (chem) penilaian 1 t4 2014

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