2012 hkdse physics mock exam set 3 - paper 1

28
DSE-PHY-MK3-121 HKDSE HKDSE HKDSE HKDSE Physics Mock Paper Series Physics Mock Paper Series Physics Mock Paper Series Physics Mock Paper Series Set 3 2012 HKDSE Physics Mock Exam Paper Paper 1: Multiple Choices questions Total: 40 Marks Time Limit: 1 hour Enrollment Hotline: 6772 3001 Website: www.andylai.hk MSN: [email protected] Address: Rm706, Prosper Commercial Building, 9 Yin Chong Street, Mong Kok, Kowloon, Hong Kong. Part III Part III Part III Part III: Wave Wave Wave Wave Motion Motion Motion Motion (100%): 100%): 100%): 100%): 1. 1. 1. 1. Nature and properties of wave (40%) Nature and properties of wave (40%) Nature and properties of wave (40%) Nature and properties of wave (40%) 2. 2. 2. 2. Light (40%) Light (40%) Light (40%) Light (40%) 3. 3. 3. 3. Sound (20%) Sound (20%) Sound (20%) Sound (20%) 特別為應考 特別為應考 特別為應考 特別為應考 2012 年首屆中學文憑試的同學編寫的模擬試題系列 年首屆中學文憑試的同學編寫的模擬試題系列 年首屆中學文憑試的同學編寫的模擬試題系列 年首屆中學文憑試的同學編寫的模擬試題系列. 深淺程度參考過往會考和高考熱門試題 深淺程度參考過往會考和高考熱門試題 深淺程度參考過往會考和高考熱門試題 深淺程度參考過往會考和高考熱門試題, 再加上可能出現的新題種 再加上可能出現的新題種 再加上可能出現的新題種 再加上可能出現的新題種. 每條試題結尾均標註了相關課程章節 每條試題結尾均標註了相關課程章節 每條試題結尾均標註了相關課程章節 每條試題結尾均標註了相關課程章節, 提醒同學 提醒同學 提醒同學 提醒同學唔會讀漏書 唔會讀漏書 唔會讀漏書 唔會讀漏書". 概念 概念 概念 概念(Qualitative)與計量 與計量 與計量 與計量(Qualitative)並重 並重 並重 並重, 讓同學深入思考 同學深入思考 同學深入思考 同學深入思考, "轉多幾過彎 轉多幾過彎 轉多幾過彎 轉多幾過彎". 特別設計 特別設計 特別設計 特別設計"分課 分課 分課 分課題(By Topics) "模擬試題 模擬試題 模擬試題 模擬試題, 讓同學 同學 同學 同學可以按 可以按 可以按 可以按課題熟識程度練習 熟識程度練習 熟識程度練習 熟識程度練習. 同學 同學 同學 同學完成這一系列 完成這一系列 完成這一系列 完成這一系列模擬試題 模擬試題 模擬試題 模擬試題後, 希望能幫助 希望能幫助 希望能幫助 希望能幫助提升 提升 提升 提升應考 應考 應考 應考中學文憑試 中學文憑試 中學文憑試 中學文憑試的信心 的信心 的信心 的信心.

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Page 1: 2012 HKDSE Physics Mock Exam Set 3 - Paper 1

DSE-PHY-MK3-121

HKDSEHKDSEHKDSEHKDSE Physics Mock Paper SeriesPhysics Mock Paper SeriesPhysics Mock Paper SeriesPhysics Mock Paper Series

Set 3

2012 HKDSE Physics Mock Exam Paper

Paper 1: Multiple Choices questions

Total: 40 Marks

Time Limit: 1 hour

Enrollment Hotline: 6772 3001 Website: www.andylai.hk MSN: [email protected]

Address: Rm706, Prosper Commercial Building, 9 Yin Chong Street, Mong Kok, Kowloon, Hong Kong.

Part IIIPart IIIPart IIIPart III:::: WaveWaveWaveWave MotionMotionMotionMotion ((((100%):100%):100%):100%): 1.1.1.1. Nature and properties of wave (40%)Nature and properties of wave (40%)Nature and properties of wave (40%)Nature and properties of wave (40%) 2.2.2.2. Light (40%)Light (40%)Light (40%)Light (40%) 3.3.3.3. Sound (20%)Sound (20%)Sound (20%)Sound (20%)

� 特別為應考特別為應考特別為應考特別為應考 2012 年首屆中學文憑試的同學編寫的模擬試題系列年首屆中學文憑試的同學編寫的模擬試題系列年首屆中學文憑試的同學編寫的模擬試題系列年首屆中學文憑試的同學編寫的模擬試題系列.

� 深淺程度參考過往會考和高考熱門試題深淺程度參考過往會考和高考熱門試題深淺程度參考過往會考和高考熱門試題深淺程度參考過往會考和高考熱門試題, 再加上可能出現的新題種再加上可能出現的新題種再加上可能出現的新題種再加上可能出現的新題種.

� 每條試題結尾均標註了相關課程章節每條試題結尾均標註了相關課程章節每條試題結尾均標註了相關課程章節每條試題結尾均標註了相關課程章節, 提醒同學提醒同學提醒同學提醒同學”唔會讀漏書唔會讀漏書唔會讀漏書唔會讀漏書".

� 概念概念概念概念(Qualitative)與計量與計量與計量與計量(Qualitative)並重並重並重並重, 讓讓讓讓同學深入思考同學深入思考同學深入思考同學深入思考, "轉多幾過彎轉多幾過彎轉多幾過彎轉多幾過彎".

� 特別設計特別設計特別設計特別設計"分課分課分課分課題題題題(By Topics) "模擬試題模擬試題模擬試題模擬試題, 讓讓讓讓同學同學同學同學可以按可以按可以按可以按課課課課題題題題熟識程度練習熟識程度練習熟識程度練習熟識程度練習.

� 同學同學同學同學完成這一系列完成這一系列完成這一系列完成這一系列模擬試題模擬試題模擬試題模擬試題後後後後, 希望能幫助希望能幫助希望能幫助希望能幫助提升提升提升提升應考應考應考應考中學文憑試中學文憑試中學文憑試中學文憑試的信心的信心的信心的信心.

Page 2: 2012 HKDSE Physics Mock Exam Set 3 - Paper 1

2012 HKDSE Physics Paper I – Set 3 Suggested Answers

1. B 2. A 3. B 4. A 5. D

6. C 7. D 8. A 9. D 10. D

11. C 12. D 13. A 14. D 15. C

16. B 17. C 18. C 19. A 20. C

21. B 22. D 23. D 24. B 25. A

26. D 27. B 28. B 29. B 30. A

31. C 32. C 33. B 34. D 35. D

36. C 37. D 38. C 39. B 40. D

* Super Challenge answer:

Question no. 14: µT

c = where c is the speed of transverse wave, T stands for

the tension in the string and µ stands for the mass per unit length of the

string.

Andy strongly recommends you to remember about this equation although it is

not stated in syllabus, (Beware that Hook’s law cannot be found in syllabus but

you will find it in formula B5 in the formula sheet in HKDSE sample paper!)

In fact, referring to HKDSE Physics Syllabus Section Part a. Wave motion and

propagation point 4 stated: determine factors affecting the speed of propagation

of waves along stretched strings or springs.

Physics is easy!

No pains! No gains!

Page 3: 2012 HKDSE Physics Mock Exam Set 3 - Paper 1
Page 4: 2012 HKDSE Physics Mock Exam Set 3 - Paper 1
Page 5: 2012 HKDSE Physics Mock Exam Set 3 - Paper 1

黎黎黎黎 sir教室教室教室教室 DSE-PHY-MK3-121

2012 HKDSE Physics Mock Exam Set 3 – Paper 1

©2011 A Lai learning Center. ALL RIGHTS RESERVED.

www.andylai.hk Prepared by Andy Lai

P. 1

Part I: Multiple choices Questions:

1. Which of the following about wave is INCORRECT?

A. Wave is a form of energy transfer without transferring matter.

B. There must be a medium for wave to transfer energy.

C. Wave can only be either longitudinal or transverse.

D. Wave can only be progressive or stationary.

(Reference: HKDSE Physics syllabus part III a. Nature of waves point 1 2 )

2. Which of the following is not the characteristic of progressive wave?

A. Particles have the same amplitudes and attain it at the same time.

B. Particles within one wavelength have different phase.

C. Waveform advances as times goes on.

D. All particles are vibrating all the time except at the amplitude.

(Reference: HKDSE Physics syllabus part III a. wave motion and propagation point 2 )

Page 6: 2012 HKDSE Physics Mock Exam Set 3 - Paper 1

黎黎黎黎 sir教室教室教室教室 DSE-PHY-MK3-121

2012 HKDSE Physics Mock Exam Set 3 – Paper 1

©2011 A Lai learning Center. ALL RIGHTS RESERVED.

www.andylai.hk Prepared by Andy Lai

P. 2

3. A wave pulse is moving with uniform speed along string attached to a fixed wall. Which of

the following showing the displacement-time (s-t) graph for a point A on the string?

A. B.

C. D.

(Reference: HKDSE Physics syllabus part III a. Reflection and refraction point 2)

4. Given the speed of water waves is 20 m 1−s and the wavelength is 20 m . If both the

frequency of the vibration source and the depth of water are doubled, which of the

following is the most possible combination of the new frequency, wavelength, speed,

degree of diffraction?

Frequency /Hz Wavelength /m Speed /m1−s Degree of Diffraction

A. 2 20 40 No change

B. 2 20 40 Less significant

C. 2 40 80 Less significant

D. 1 40 40 More significant

(Reference: HKDSE Physics syllabus part III a. Wave motion and propagation point 5 Diffraction and interference

point 2)

Page 7: 2012 HKDSE Physics Mock Exam Set 3 - Paper 1

黎黎黎黎 sir教室教室教室教室 DSE-PHY-MK3-121

2012 HKDSE Physics Mock Exam Set 3 – Paper 1

©2011 A Lai learning Center. ALL RIGHTS RESERVED.

www.andylai.hk Prepared by Andy Lai

P. 3

5. The graph below shows how the displacements of air molecules, in a longitudinal

progressive wave, from their mean positions relative to the source O, at a particular

instant. The displacement to the LEFT is taken to be positive. Which of the following

statement is / are INCORRECT?

(1) The velocity of particle Q is equal to the velocity of particle S.

(2) Q is the center of compression while S is center of rarefaction

(3) Particle at U is momentarily at rest.

A. (1) and (2) only

B. (1) and (3) only

C. (2) and (3) only

D. (1), (2) and (3)

(Reference: HKDSE Physics syllabus part III a. Wave motion and propagation point 2 3)

Page 8: 2012 HKDSE Physics Mock Exam Set 3 - Paper 1

黎黎黎黎 sir教室教室教室教室 DSE-PHY-MK3-121

2012 HKDSE Physics Mock Exam Set 3 – Paper 1

©2011 A Lai learning Center. ALL RIGHTS RESERVED.

www.andylai.hk Prepared by Andy Lai

P. 4

6. A longitudinal wave is traveling from left to right in a medium. Figure (a) shows the

equilibrium positions of particles A to J in the medium at time. At time t = 2 s. the particles

are on the position shown in figure (b). The period of the wave is 8 seconds. Which of the

following correctly shows the displacement-time graph of particle E? (Note: displacement

to the right is taken to be positive)

A. B.

C. D.

(Reference: HKDSE Physics syllabus part III a. Wave motion and propagation point 3)

Page 9: 2012 HKDSE Physics Mock Exam Set 3 - Paper 1

黎黎黎黎 sir教室教室教室教室 DSE-PHY-MK3-121

2012 HKDSE Physics Mock Exam Set 3 – Paper 1

©2011 A Lai learning Center. ALL RIGHTS RESERVED.

www.andylai.hk Prepared by Andy Lai

P. 5

7. At time t = 0 s, the molecules are at rest and their position is shown in figure (a) below. At

time t = 10 s. after a moment, A longitudinal wave is travelling to the right arrived and the

position of particles changed and shown on figure (b). What will be the direction of the

motion of particle 11 immediately after time t = 10 s.

A. Upward

B. Downward

C. Right

D. Left

(Reference: HKDSE Physics syllabus part III a. Wave motion and propagation point 3)

8. If two waves are said to be coherent, they must

(1) have same frequency

(2) have constant phase difference.

(3) produce destructive interference only when they superimpose each other.

A. (1) and (2) only

B. (1) and (3) only

C. (2) and (3) only

D. (1), (2) and (3)

(Reference: HKDSE Physics syllabus part III a. Diffraction and interference point 6)

Page 10: 2012 HKDSE Physics Mock Exam Set 3 - Paper 1

黎黎黎黎 sir教室教室教室教室 DSE-PHY-MK3-121

2012 HKDSE Physics Mock Exam Set 3 – Paper 1

©2011 A Lai learning Center. ALL RIGHTS RESERVED.

www.andylai.hk Prepared by Andy Lai

P. 6

9. A wave is incident on a boundary between two media 1 and 2 at an angle of incidence i. AB

represents the incident wavefront and CD the refracted wavefront. Which of the following

statements is / are CORRECT?

(1) The wave speed decreases while its frequency remains nchanged when entering medium 2.

(2) When one end of the wave travels from A to C, the other end of the wave travels from B to

D at the same time.

(3) Total internal reflection will not occur at the boundary between medium 1 and 2 however

large the angle i is.

A. (1) and (2) only

B. (1) and (3) only

C. (2) and (3) only

D. (1). (2) and (3)

(Reference: HKDSE Physics syllabus part III a. Reflection and refraction point 3 4 5)

Page 11: 2012 HKDSE Physics Mock Exam Set 3 - Paper 1

黎黎黎黎 sir教室教室教室教室 DSE-PHY-MK3-121

2012 HKDSE Physics Mock Exam Set 3 – Paper 1

©2011 A Lai learning Center. ALL RIGHTS RESERVED.

www.andylai.hk Prepared by Andy Lai

P. 7

10. A wave of speed 1v and wavelength 1λ travels from a medium of refractive index 1n to

another medium of refractive index 2n and its wave speed and wavelength becomes 2v

and 2λ respectively. Which of the following statements is / are CORRECT?

A. 1221 λλ nn =

B. 2

2

1

1

v

n

v

n=

C. 2211 λλ cc =

D. None of the above

(Reference: HKDSE Physics syllabus part III a. Wave motion and propagation point 5 Reflection and refraction

point 3 4 5)

11. Two transverse pulses travel toward each other along a stretched string as shown below.

What does the wave energy become when the pulses pass each other? Assume the two said

waves keep exactly the same waveform after passing each other.

A. The wave energy becomes wholly elastic potential in the string.

B. The wave energy becomes wholly kinetic in the string.

C. The wave energy becomes partly elastic potential and partly kinetic in the string.

D. The wave energy converts into internal energy and is dissipated as heat energy in the

string.

(Reference: HKDSE Physics syllabus part III a. Diffraction and interference point 3)

Page 12: 2012 HKDSE Physics Mock Exam Set 3 - Paper 1

黎黎黎黎 sir教室教室教室教室 DSE-PHY-MK3-121

2012 HKDSE Physics Mock Exam Set 3 – Paper 1

©2011 A Lai learning Center. ALL RIGHTS RESERVED.

www.andylai.hk Prepared by Andy Lai

P. 8

12. Two in-phase Dippers S1 and S2 produce circular wavefronts in a ripple tank. Which of the

following statements is/are CORRECT?

(1) Constructive interference occurs at X and Z.

(2) Amplitude of the wave at Y is always zero.

(3) If two dippers S1 and S2 have a constant phase differenceπ , Destructive interference will

occur at Z.

A. (1) and (2) only

B. (1) and (3) only

C. (2) and (3) only

D. (1), (2) and (3)

(Reference: HKDSE Physics syllabus part III a. Diffraction and interference point 3 4 5 6 7 8)

Page 13: 2012 HKDSE Physics Mock Exam Set 3 - Paper 1

黎黎黎黎 sir教室教室教室教室 DSE-PHY-MK3-121

2012 HKDSE Physics Mock Exam Set 3 – Paper 1

©2011 A Lai learning Center. ALL RIGHTS RESERVED.

www.andylai.hk Prepared by Andy Lai

P. 9

13. Two point sources S1 and S2 are producing circular water waves in a ripple tank. The

figure below shows the wave pattern at a certain instant. Solid lines represent crest while

dotted lines represent troughs. Which of the following statements is / are CORRECT?

(1) S1 and S2 must be coherent sources.

(2) Particle at B is always at crest while the particle at C is always at trough.

(3) Since there is no energy in point A, destructive interference violate the law of conservation

of energy.

A. (1) only

B. (1) and (2) only

C. (2) and (3) only

D. (1), (2) and (3) only

(Reference: HKDSE Physics syllabus part III a. Diffraction and interference point 3 4 5 6 7 8)

14. Which of the following is / are factors affecting the speed of propagation of waves along

stretched strings?

(1) Tension in the string

(2) Mass per unit length of the string

(3) Hook’s constant of the string

A. (1) and (2) only

B. (1) and (3) only

C. (2) and (3) only

D. (1), (2) and (3)

(Super challenge: Do you know the equation of the speed of transverse wave in a string?)

(Reference: HKDSE Physics syllabus part III a. Wave motion and propagation point 4)

Page 14: 2012 HKDSE Physics Mock Exam Set 3 - Paper 1

黎黎黎黎 sir教室教室教室教室 DSE-PHY-MK3-121

2012 HKDSE Physics Mock Exam Set 3 – Paper 1

©2011 A Lai learning Center. ALL RIGHTS RESERVED.

www.andylai.hk Prepared by Andy Lai

P. 10

15. A guitar is shown in the diagram below. The uniform 80 cm string is fixed at both ends at

A and B. A fingertip is touching the string at C and plucked between A and C to produce

transverse vibrations, the frequency of the fundamental note is obtained is 880 Hz. The

total mass of the string is 1.5 g. The distance between A and C is 20 cm.

What is the tension in the string?

A. 58 N

B. 116 N

C. 232 N

D. 930 N

(Reference: HKDSE Physics syllabus part III Wave motion and propagation point 4 Stationary wave point 1 2)

16. A stretched string is 50 cm long and is fixed at both ends as shown below. If the vibrator

increases its frequency gradually, two successive stationary waves would be produced

without intermediate frequency. Given the speed of the mechanical wave along the string

is 50 1−

sm

What of the following is the possible frequency combination of the said two successive sound

waves?

A. 250 Hz and 350 Hz

B. 450 Hz and 500 Hz

C. 500 Hz and 600 Hz

D. 630 Hz and 680 Hz

(Reference: HKDSE Physics syllabus part III a. Wave motion and propagation point 5 Stationary wave point 1 2)

Page 15: 2012 HKDSE Physics Mock Exam Set 3 - Paper 1

黎黎黎黎 sir教室教室教室教室 DSE-PHY-MK3-121

2012 HKDSE Physics Mock Exam Set 3 – Paper 1

©2011 A Lai learning Center. ALL RIGHTS RESERVED.

www.andylai.hk Prepared by Andy Lai

P. 11

17. Which of the following is the possible combination of the order of magnitude of frequency

and wavelength of EM wave in air?

Type of EM wave frequency wavelength

A. Radio wave 16

10 8

10−

B. X-ray 10

10 2

10−

C. Microwave 11

10 3

10−

D. Gamma ray 21

10 12

10−

(Reference: HKDSE Physics syllabus part III b. Light in electromagnetic spectrum point 1 2 3 )

18. Andy is 180 cm tall and wants to buy a mirror to see the image of his whole body. The

length of the mirror is 90 cm. Which of the following is CORRECT?

A. He cannot see the image of his whole body because the mirror is too short.

B. He can see his image no matter how high he hangs the mirror above the ground.

C. There is one and only one position to hang the mirror to see the image of his whole body.

D. The nearer he stands in front of the mirror, the larger the magnification of his image.

(Reference: HKDSE Physics syllabus part III b. Reflection of light point 2)

Page 16: 2012 HKDSE Physics Mock Exam Set 3 - Paper 1

黎黎黎黎 sir教室教室教室教室 DSE-PHY-MK3-121

2012 HKDSE Physics Mock Exam Set 3 – Paper 1

©2011 A Lai learning Center. ALL RIGHTS RESERVED.

www.andylai.hk Prepared by Andy Lai

P. 12

19. The distance between Andy’s eye and foot is 1.8 meters. How far is the horizontal distance

between Andy and the angry bird if Andy can see the angry bird’s image from a small

mirror hanging on the wall 0.7 meters below the ceiling as shown below?

A. 1 meter

B. 2 meters

C. 2.5 meters

D. 3.5 meters

(Reference: HKDSE Physics syllabus part III b. Reflection of light point 2)

20. A light ray travels from medium I to medium IV as shown below. Which medium does the

light ray travels the slowest?

A. I

B. II

C. III

D. IV

(Reference: HKDSE Physics syllabus part III b. Refraction of light point 2 3 4 total internal reflection point 1 2)

Page 17: 2012 HKDSE Physics Mock Exam Set 3 - Paper 1

黎黎黎黎 sir教室教室教室教室 DSE-PHY-MK3-121

2012 HKDSE Physics Mock Exam Set 3 – Paper 1

©2011 A Lai learning Center. ALL RIGHTS RESERVED.

www.andylai.hk Prepared by Andy Lai

P. 13

21. Which of the following statement about real and virtual image is CORRECT?

A. Virtual image may be formed on a screen.

B. Images formed by concave lens must be virtual.

C. Images formed by convex lens must be real.

D. There are real light rays intersecting at the virtual image.

(Reference: HKDSE Physics syllabus part III b. formation of images by lenses point 1 2)

22. Which of the following statements about light is / are CORRECT?

(1) Light is a kind of transverse wave.

(2) The speed of light in air is higher than that in water.

(3) Light wave can travel through vacuum.

A. (1) and (2) only

B. (1) and (3) only

C. (2) and (3) only

D. (1), (2) and (3)

(Reference: HKDSE Physics syllabus part III b. Light in electromagnetic spectrum point 1 2 3)

Page 18: 2012 HKDSE Physics Mock Exam Set 3 - Paper 1

黎黎黎黎 sir教室教室教室教室 DSE-PHY-MK3-121

2012 HKDSE Physics Mock Exam Set 3 – Paper 1

©2011 A Lai learning Center. ALL RIGHTS RESERVED.

www.andylai.hk Prepared by Andy Lai

P. 14

23. Which of the following about the convex lens is / are INCORRECT?

(1) If the image distance less than the focal length, the image is virtual.

(2) The sum of object distance and image distance is always equal to 4 times of focal length.

(3) If parallel light rays passing incident on the convex lens, the image must be formed at the

focus on the principal axis.

A. (1) and (2) only

B. (1) and (3) only

C. (2) and (3) only

D. (1), (2) and (3)

(Reference: HKDSE Physics syllabus part III b. Formation of images by lenses point 1 2)

24. A sharp image of an object formed on a screen with object distance u by a thin converging

lens of focal length f. By moving the lens towards the screen, another sharp image is

formed of the screen again with image distance v. which of the following statement is / are

INCORRECT?

(1) The lens was moved towards to the lens by 4f – 2u to form another image on the screen.

(2) The length of u is equal to the length of v.

(3) The total distance between the object and the image formed is equal to 4f

A. (1) and (2) only

B. (1) and (3) only

C. (2) and (3) only

D. (1), (2) and (3)

(Reference: HKDSE Physics syllabus part III b. Formation of images by lenses point 1 2)

Page 19: 2012 HKDSE Physics Mock Exam Set 3 - Paper 1

黎黎黎黎 sir教室教室教室教室 DSE-PHY-MK3-121

2012 HKDSE Physics Mock Exam Set 3 – Paper 1

©2011 A Lai learning Center. ALL RIGHTS RESERVED.

www.andylai.hk Prepared by Andy Lai

P. 15

25. Five parallel light rays passed through a concave lens (L1) with focal length equal to 20 cm

from the left side of L1. After passing through L1, the five light rays passed through a

convex lens (L2) with focal length equal to 25 cm which is placed on the right side of a

concave lens. The distance between L1 and L2 is 10 cm. What is the position of the final

image formed by L2?

A. 150 cm away from the right side of L2

B. 240 cm away from the right side of L2

C. Between L1 and L2

D. On the left side of L1

(Reference: HKDSE Physics syllabus part III b. Formation of images by lenses point 3)

26. A luminous object A is placed 40 cm from the left side of a convex lens with focal length 20

cm. A concave lens with focal length 15 cm is placed 25 cm from the right side of the

convex lens. What is the position of the final image formed by the concave lens?

A. 20 cm on the right side of the concave lens

B. 25 cm on the right side of the concave lens

C. 40 cm on the right side of the concave lens

D. At infinity

(Reference: HKDSE Physics syllabus part III b. Formation of images by lenses point 3)

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黎黎黎黎 sir教室教室教室教室 DSE-PHY-MK3-121

2012 HKDSE Physics Mock Exam Set 3 – Paper 1

©2011 A Lai learning Center. ALL RIGHTS RESERVED.

www.andylai.hk Prepared by Andy Lai

P. 16

27. Which point will the light ray X passing through beyond the convex lens?

(Reference: HKDSE Physics syllabus part III b. Formation of images by lenses point 1)

28.

In the diagram above, F and F’ are foci of the lens and an arrow locates around 2F’. Which of

the following diagram shows the CORRECT image?

A. B.

C. D.

(Reference: HKDSE Physics syllabus part III b. Formation of images by lenses point 1)

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黎黎黎黎 sir教室教室教室教室 DSE-PHY-MK3-121

2012 HKDSE Physics Mock Exam Set 3 – Paper 1

©2011 A Lai learning Center. ALL RIGHTS RESERVED.

www.andylai.hk Prepared by Andy Lai

P. 17

29. Which of the following statements about lens is/are INCORRECT?

(I) Convex lens always gives real image.

(II) Concave lens always gives virtual image.

(III) Virtual image formed by lens cannot be photographed by digital camera.

A. (I) and (1I) only

B. (I) and (III) only

C. (II) and (III) only

D. (1), (II) and (III) only

(Reference: HKDSE Physics syllabus part III b. Formation of images by lenses point 1 2)

30. What conclusion can we draw on the wavelength of red light and blue light from the above

diffraction pattern?

Blue light Red light

A. The wavelength of blue light is shorter than the wavelength of red light.

B. The wavelength of red light is shorter than the wavelength of blue light.

C. The frequency of red light is less than the frequency of blue light.

D. The frequency of blue light is longer than the frequency of red light.

(Reference: HKDSE Physics syllabus part III b. Wave nature of light point 2)

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黎黎黎黎 sir教室教室教室教室 DSE-PHY-MK3-121

2012 HKDSE Physics Mock Exam Set 3 – Paper 1

©2011 A Lai learning Center. ALL RIGHTS RESERVED.

www.andylai.hk Prepared by Andy Lai

P. 18

31. A beam of monochromatic light is emitted normally on a diffraction grating. If the

third-order diffracted beam are found at angles °35 to the incident direction. What order

of diffracted beam is impossible to be observed?

A. 4th Order

B. 5th Order

C. 6th Order

D. It cannot be determined

(Reference: HKDSE Physics syllabus part III b. Wave nature of light point 6)

32. Monochromatic light incident on two narrow parallel slits produces a fringe pattern on a

screen, with the intensity distribution shown below. If another monochromatic light with

higher frequency is used, which diagram best shows the intensity distribution pattern that

would result?

A. B.

C. D.

(Reference: HKDSE Physics syllabus part III b. Wave nature of light point 4)

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黎黎黎黎 sir教室教室教室教室 DSE-PHY-MK3-121

2012 HKDSE Physics Mock Exam Set 3 – Paper 1

©2011 A Lai learning Center. ALL RIGHTS RESERVED.

www.andylai.hk Prepared by Andy Lai

P. 19

33. Which of the following statements about sound wave is CORRECT?

A. The louder the musical note, the longer the wavelength of the sound wave in air.

B. The higher the pitch of the musical note, the shorter the wavelength in air.

C. The frequency of overtones of a musical note is at least half of its fundamental frequency.

D. You can distinguish between Andy Lau’s voices and Andy Lai’s voices singing the same

song with same pitch and loudness because their voices have the same quality.

(Reference: HKDSE Physics syllabus part III c. Musical notes point 1 2)

34. Which of the following statements about sound is / are INCORRECT?

(1) Sound is a kind of transverse wave.

(2) The speed of sound in air is higher than that in water.

(3) Sound wave can travel through vacuum.

A. (1) and (2) only

B. (1) and (3) only

C. (2) and (3) only

D. (1), (2) and (3)

(Reference: HKDSE Physics syllabus part III c. Wave nature of sound point 1 3 4)

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黎黎黎黎 sir教室教室教室教室 DSE-PHY-MK3-121

2012 HKDSE Physics Mock Exam Set 3 – Paper 1

©2011 A Lai learning Center. ALL RIGHTS RESERVED.

www.andylai.hk Prepared by Andy Lai

P. 20

35. Which of the following about a musical note is CORRECT?

(1) A musical note played by a guitar consists of fundamental frequency and overtones.

(2) Overtones are musical notes of frequency which is multiples of fundamental frequency.

(3) Quality of a musical note depends on the numbers and amplitude of overtones

accompanying the fundamental frequency.

A. (1) and (2) only

B. (1) and (3) only

C. (2) and (3) only

D. (1), (2) and (3)

(Reference: HKDSE Physics syllabus part III c. Musical note point 1 2)

36. Which of the following is the CORRECT represents the displacement of air molecules and

its corresponding variation in air pressure with the position when a sound wave moving

from left to right at a particular instant? Take the direction of displacement to the left as

positive.

A. B.

C. C.

(Reference: HKDSE Physics syllabus part III c. Wave nature of sound point 1 3 4)

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黎黎黎黎 sir教室教室教室教室 DSE-PHY-MK3-121

2012 HKDSE Physics Mock Exam Set 3 – Paper 1

©2011 A Lai learning Center. ALL RIGHTS RESERVED.

www.andylai.hk Prepared by Andy Lai

P. 21

37. The two wave forms display below showing two sound wave detected by a CRO with

identical settings.

Which of the following statement is / are CORRECT?

(1) Two sound waves are produced by two different musical instruments.

(2) Two sound waves are of different frequencies.

(3) Two sound waves are of similar loudness.

A. (1) and (2) only

B. (1) and (3) only

C. (2) and (3) only

D. (1), (2) and (3)

(Reference: HKDSE Physics syllabus part III c. Musical note point 1 2)

38. Which of following about sound wave is CORRECT?

A. The speed of ultrasonic wave is much higher than that of audible sound wave in air.

B. The audible frequency range of normal human is between 40 Hz to 40000 Hz.

C. Some animals in the Earth can hear or recognize some sound wave with frequency higher

than 40000 Hz.

D. Ultrasonic can be used to clean small objects like glasses due to its short wavelength.

(Reference: HKDSE Physics syllabus part III c. Audible frequency range point 1 2)

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黎黎黎黎 sir教室教室教室教室 DSE-PHY-MK3-121

2012 HKDSE Physics Mock Exam Set 3 – Paper 1

©2011 A Lai learning Center. ALL RIGHTS RESERVED.

www.andylai.hk Prepared by Andy Lai

P. 22

39. Which of the following is the most possible combination of the intensity level of whispering

and thunder taken place next to the building you live in respectively?

Thunder Whispering

A. 180 dB 20 dB

B. 100 dB 20 dB

C. 80 dB 60 dB

D. 60 dB 80 dB

(Reference: HKDSE Physics syllabus part III c. Noise point 1 2)

40. Which of the following about wave is CORRECT?

A. If the size of the barrier is small compared with the wavelength of the wave, the degree of

diffraction is not significant.

B. Ultrasonic wave can be used to clean lenses because of its low degree of diffraction.

C. Refraction is one of the evidence for the wave nature of light.

D. Image of a very distant object must form on a point of the focal plane after the light rays

pass through the convex lens.

(Reference: HKDSE Physics syllabus part III a. b. c. combined)

The end.

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黎黎黎黎 sir教室教室教室教室 DSE-PHY-MK3-121

2012 HKDSE Physics Mock Exam Set 3 – Paper 1

©2011 A Lai learning Center. ALL RIGHTS RESERVED.

www.andylai.hk Prepared by Andy Lai

P. 23

黎黎黎黎 sir教室教室教室教室將陸續推出下列將陸續推出下列將陸續推出下列將陸續推出下列新高中新高中新高中新高中

中學文憑試模擬試題系列中學文憑試模擬試題系列中學文憑試模擬試題系列中學文憑試模擬試題系列, 包括包括包括包括: � 2012 HKDSE Physics Mock Exam Set 1 – Paper 1 (Heat and Gases)

� 2012 HKDSE Physics Mock Exam Set 1 – Paper 2 (Heat and Gases)

� 2012 HKDSE Physics Mock Exam Set 2 – Paper 1 (Force and Motion)

� 2012 HKDSE Physics Mock Exam Set 2 – Paper 2 (Force and Motion)

� 2012 HKDSE Physics Mock Exam Set 3 – Paper 1 (Wave Motion)

� 2012 HKDSE Physics Mock Exam Set 3 – Paper 2 (Wave Motion)

� 2012 HKDSE Physics Mock Exam Set 4 – Paper 1 (Electricity and Magnetism)

� 2012 HKDSE Physics Mock Exam Set 4 – Paper 2 (Electricity and Magnetism)

� 2012 HKDSE Physics Mock Exam Set 5 – Paper 1 (Radioactivity and Nuclear Energy)

� 2012 HKDSE Physics Mock Exam Set 5 – Paper 2 (Radioactivity and Nuclear Energy)

� 2012 HKDSE Physics Mock Exam Set 6 – Paper 1 (Astronomy and Space Science)

� 2012 HKDSE Physics Mock Exam Set 7 – Paper 1 (Atomic World)

� 2012 HKDSE Physics Mock Exam Set 8 – Paper 1 (Energy and Use of Energy)

� 2012 HKDSE Physics Mock Exam Set 9 – Paper 1 (Medical Physics)

� 特別為應考特別為應考特別為應考特別為應考 2012 年首屆中學文憑試的同學編寫的模擬試題系列年首屆中學文憑試的同學編寫的模擬試題系列年首屆中學文憑試的同學編寫的模擬試題系列年首屆中學文憑試的同學編寫的模擬試題系列.

� 深淺程度參考過往會考深淺程度參考過往會考深淺程度參考過往會考深淺程度參考過往會考和高考熱門試題和高考熱門試題和高考熱門試題和高考熱門試題, 再加上可能出現的新題種再加上可能出現的新題種再加上可能出現的新題種再加上可能出現的新題種.

� 每條試題結尾均標註了相關課程章節每條試題結尾均標註了相關課程章節每條試題結尾均標註了相關課程章節每條試題結尾均標註了相關課程章節, 提醒同學提醒同學提醒同學提醒同學”唔會讀漏書唔會讀漏書唔會讀漏書唔會讀漏書".

� 概念概念概念概念(Qualitative)與計量與計量與計量與計量(Qualitative)並重並重並重並重, 讓同學深入思考讓同學深入思考讓同學深入思考讓同學深入思考, "轉多幾過彎轉多幾過彎轉多幾過彎轉多幾過彎".

� 特別設計特別設計特別設計特別設計"分課題分課題分課題分課題(By Topics) "模擬試題模擬試題模擬試題模擬試題, 讓同學可以按課題熟識程度練習讓同學可以按課題熟識程度練習讓同學可以按課題熟識程度練習讓同學可以按課題熟識程度練習.

� 同學完成這一系列模擬試題後同學完成這一系列模擬試題後同學完成這一系列模擬試題後同學完成這一系列模擬試題後, 希望能幫助提升應考中學文憑試的信心希望能幫助提升應考中學文憑試的信心希望能幫助提升應考中學文憑試的信心希望能幫助提升應考中學文憑試的信心.

Level 5**:Level 5**:Level 5**:Level 5**: 101010100% (The Best of the Best!)0% (The Best of the Best!)0% (The Best of the Best!)0% (The Best of the Best!)

Level 5*:Level 5*:Level 5*:Level 5*: 90%90%90%90%↑ (Superb!)(Superb!)(Superb!)(Superb!)

Level 5Level 5Level 5Level 5:::: 80%80%80%80% ↑ ((((Excellent!)Excellent!)Excellent!)Excellent!)

Level 4Level 4Level 4Level 4:::: 70%70%70%70% ↑ (Quite go(Quite go(Quite go(Quite good!)od!)od!)od!)

LevelLevelLevelLevel 3333:::: 60%60%60%60% ↑ ((((Not bad!)Not bad!)Not bad!)Not bad!)

Level 2:Level 2:Level 2:Level 2: 55550%0%0%0% ↑ ((((Need improvement!)Need improvement!)Need improvement!)Need improvement!)

Level 1:Level 1:Level 1:Level 1: 40%40%40%40%↑ (Need revise again!)(Need revise again!)(Need revise again!)(Need revise again!)

Unclassified:Unclassified:Unclassified:Unclassified: 40%40%40%40%↓ (Zero Knowledge!)(Zero Knowledge!)(Zero Knowledge!)(Zero Knowledge!)

Remarks:Remarks:Remarks:Remarks:

1.1.1.1. This isThis isThis isThis is my opinionmy opinionmy opinionmy opinion only, notonly, notonly, notonly, not officialofficialofficialofficial HKEAA standard.HKEAA standard.HKEAA standard.HKEAA standard.

Page 28: 2012 HKDSE Physics Mock Exam Set 3 - Paper 1

黎黎黎黎 Sir 教室教室教室教室 A Lai Learning Center

HKCEE / HKALE / HKDSE / F.1 - F.7 / MO

AP / SAT / IB / GCSE / IGCSE / GCE / HSC

資深中學補習導師資深中學補習導師資深中學補習導師資深中學補習導師 小組補習小組補習小組補習小組補習 事半功倍事半功倍事半功倍事半功倍!!!

黎黎黎黎 sir 簡介簡介簡介簡介

� 畢業於香港中文大學畢業於香港中文大學畢業於香港中文大學畢業於香港中文大學, 黎黎黎黎 sir 教室創辦人教室創辦人教室創辦人教室創辦人之一之一之一之一.

� 多年教授會考多年教授會考多年教授會考多年教授會考 / 高考高考高考高考 / 中學文憑中學文憑中學文憑中學文憑 / IB Diploma / SAT / AP / GCSE / IGCSE / GCE/ HSC 課程課程課程課程經驗經驗經驗經驗, 信心保證信心保證信心保證信心保證.

� 現於黎現於黎現於黎現於黎 sir 教室教室教室教室及中學任教補習班及中學任教補習班及中學任教補習班及中學任教補習班, 學生學生學生學生就讀於英文中學就讀於英文中學就讀於英文中學就讀於英文中學, 中文中學中文中學中文中學中文中學, 國際學校及英國留學生國際學校及英國留學生國際學校及英國留學生國際學校及英國留學生.

� 熟悉近年出題熟悉近年出題熟悉近年出題熟悉近年出題趨勢趨勢趨勢趨勢, 教授考試取分技巧教授考試取分技巧教授考試取分技巧教授考試取分技巧; 鼓勵同學獨立思考鼓勵同學獨立思考鼓勵同學獨立思考鼓勵同學獨立思考, 增強同學理解能力增強同學理解能力增強同學理解能力增強同學理解能力

� 善用生活化例子講解善用生活化例子講解善用生活化例子講解善用生活化例子講解, 教法生動教法生動教法生動教法生動, 增加學習趣味增加學習趣味增加學習趣味增加學習趣味; 深入淺出深入淺出深入淺出深入淺出, 明白學生學習上的困難和需要明白學生學習上的困難和需要明白學生學習上的困難和需要明白學生學習上的困難和需要.

� 中英對照筆記中英對照筆記中英對照筆記中英對照筆記, 適合中文和英文中學學生就讀適合中文和英文中學學生就讀適合中文和英文中學學生就讀適合中文和英文中學學生就讀; 精心編制練習和試題精心編制練習和試題精心編制練習和試題精心編制練習和試題, 協協協協助同學助同學助同學助同學盡快盡快盡快盡快掌握答題技巧掌握答題技巧掌握答題技巧掌握答題技巧.

� 黎黎黎黎 sir 在中學和大學時代已是一名傑出學生在中學和大學時代已是一名傑出學生在中學和大學時代已是一名傑出學生在中學和大學時代已是一名傑出學生, 曾獲取多項學業上和運曾獲取多項學業上和運曾獲取多項學業上和運曾獲取多項學業上和運動上的獎學金及獎項動上的獎學金及獎項動上的獎學金及獎項動上的獎學金及獎項;

曾代表香港參加曾代表香港參加曾代表香港參加曾代表香港參加國際性運動比賽國際性運動比賽國際性運動比賽國際性運動比賽, 取得優異成績取得優異成績取得優異成績取得優異成績, 「「「「又讀得又玩得又讀得又玩得又讀得又玩得又讀得又玩得」」」」, 絕不是死讀書的書呆子絕不是死讀書的書呆子絕不是死讀書的書呆子絕不是死讀書的書呆子.

� 黎黎黎黎 sir 在就讀大學時曾於全球最大美資電腦公司任實習生超過一年在就讀大學時曾於全球最大美資電腦公司任實習生超過一年在就讀大學時曾於全球最大美資電腦公司任實習生超過一年在就讀大學時曾於全球最大美資電腦公司任實習生超過一年, 大學畢業後旋即於全港最大英資電腦公司大學畢業後旋即於全港最大英資電腦公司大學畢業後旋即於全港最大英資電腦公司大學畢業後旋即於全港最大英資電腦公司, 負責主理該公司所代理的全球最大美資電腦公司儲存系統銷售業務負責主理該公司所代理的全球最大美資電腦公司儲存系統銷售業務負責主理該公司所代理的全球最大美資電腦公司儲存系統銷售業務負責主理該公司所代理的全球最大美資電腦公司儲存系統銷售業務(當時黎當時黎當時黎當時黎 sir 只得只得只得只得 24 歲歲歲歲).

� 於短短半年內將該產品線銷售業績提升超過於短短半年內將該產品線銷售業績提升超過於短短半年內將該產品線銷售業績提升超過於短短半年內將該產品線銷售業績提升超過 50%. 同時更被公司評選為同時更被公司評選為同時更被公司評選為同時更被公司評選為"傑出表現員工傑出表現員工傑出表現員工傑出表現員工 Outstanding Performer”,

成功將書本上的知識靈活運用於工作上成功將書本上的知識靈活運用於工作上成功將書本上的知識靈活運用於工作上成功將書本上的知識靈活運用於工作上.

� 黎黎黎黎 sir 為了教學理想為了教學理想為了教學理想為了教學理想, 毅然辭去工作毅然辭去工作毅然辭去工作毅然辭去工作, 全身投入教學事業全身投入教學事業全身投入教學事業全身投入教學事業, 希望將自己的一套獨特的學習方法教授學生希望將自己的一套獨特的學習方法教授學生希望將自己的一套獨特的學習方法教授學生希望將自己的一套獨特的學習方法教授學生 � 黎黎黎黎 sir 學生於學生於學生於學生於 2009 年年年年公開考試公開考試公開考試公開考試成績成績成績成績優異優異優異優異, 包括包括包括包括:

� 兩位學生成功拔尖兩位學生成功拔尖兩位學生成功拔尖兩位學生成功拔尖, 入讀港大科學系和中大法律系入讀港大科學系和中大法律系入讀港大科學系和中大法律系入讀港大科學系和中大法律系;

� 國際預科文憑國際預科文憑國際預科文憑國際預科文憑 (IB Diploma) 經濟科獲取最高等級經濟科獲取最高等級經濟科獲取最高等級經濟科獲取最高等級 (7 級級級級) 成績成績成績成績;

� 多位學生於多位學生於多位學生於多位學生於英國普通教育文憑英國普通教育文憑英國普通教育文憑英國普通教育文憑(GCE)及及及及英國普通中學教育文憑英國普通中學教育文憑英國普通中學教育文憑英國普通中學教育文憑(GCSE)獲取獲取獲取獲取 A/A*成績成績成績成績;

� 2009 年度年度年度年度 8 位學生參加位學生參加位學生參加位學生參加香香香香港港港港中學會考中學會考中學會考中學會考, 6 位取得位取得位取得位取得 20 分以上佳績分以上佳績分以上佳績分以上佳績, 並且所有科目皆取得並且所有科目皆取得並且所有科目皆取得並且所有科目皆取得 ABC 等等級等等級等等級等等級, 其中其中其中其中 1 位文位文位文位文

科生更獲取科生更獲取科生更獲取科生更獲取 26 分佳績分佳績分佳績分佳績, 整體整體整體整體 ABC 率達率達率達率達 78%, 整體合格率達整體合格率達整體合格率達整體合格率達 100%. 名符其實是小班教學名符其實是小班教學名符其實是小班教學名符其實是小班教學, 事半功倍事半功倍事半功倍事半功倍.

課程特色課程特色課程特色課程特色

� 小組教學小組教學小組教學小組教學(1 – 6 人人人人), 導師親身教學導師親身教學導師親身教學導師親身教學; 照顧每位學生需要照顧每位學生需要照顧每位學生需要照顧每位學生需要, 事半功倍事半功倍事半功倍事半功倍.

� 精心編制精心編制精心編制精心編制筆記筆記筆記筆記, 練習以近練習以近練習以近練習以近 20 年本地和外國公開試題為藍本年本地和外國公開試題為藍本年本地和外國公開試題為藍本年本地和外國公開試題為藍本.

� 概念理解概念理解概念理解概念理解, 取分技巧並重取分技巧並重取分技巧並重取分技巧並重; 協協協協助同學助同學助同學助同學盡快盡快盡快盡快掌握答題技巧掌握答題技巧掌握答題技巧掌握答題技巧.

� 歡迎自由組合小組上課歡迎自由組合小組上課歡迎自由組合小組上課歡迎自由組合小組上課, 時間及課程內容編排更有彈性時間及課程內容編排更有彈性時間及課程內容編排更有彈性時間及課程內容編排更有彈性.

� 時間及課程時間及課程時間及課程時間及課程請瀏覽以下網址請瀏覽以下網址請瀏覽以下網址請瀏覽以下網址: www.andylai.hk

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