Cambridge IGCSE Physics 0625 — 2005 May/June Paper 1 · Variant 1

Question 1

1 A decorator wishes to calculate the area of a bathroom tile so that he can estimate the amount of adhesive that he needs to buy. What must he use? A a measuring cylinder only B a ruler only C a measuring cylinder and a clock only D a measuring cylinder and a ruler only

Accepted Answer

B

Question 2

2 The three balls shown are dropped from a bench. aluminium lead wood Which balls have the same acceleration? A aluminium and lead only B aluminium and wood only C lead and wood only D aluminium, lead and wood

Accepted Answer

D

Question 3

3 A car accelerates from traffic lights. The graph shows how the car’s speed changes with time. speed m / s 20 0 0 10 time / s How far does the car travel before it reaches a steady speed? A 10 m B 20 m C 100 m D 200 m

Accepted Answer

C

Question 4

4 Which statement is correct? A The mass of a bottle of water at the North Pole is different from its mass at the Equator. B The mass of a bottle of water is measured in newtons. C The weight of a bottle of water and its mass are the same thing. D The weight of a bottle of water is one of the forces acting on it.

Accepted Answer

D

Question 5

5 Two blocks X and Y are placed on a beam as shown. The beam balances on a pivot at its centre. Y X pivot What does this show about X and Y? A They have the same mass and the same density. B They have the same mass and the same weight. C They have the same volume and the same density. D They have the same volume and the same weight.

Accepted Answer

B

Question 6

6 The masses of a measuring cylinder before and after pouring some liquid into it are shown in the diagram. cm3 cm3 200 200 100 100 liquid mass = 80 g mass = 180 g What is the density of the liquid? 100 g / cm3 100 g / cm3 180 g / cm3 180 g / cm3 A B C D 120 140 120 140

Accepted Answer

B

Question 7

7 A girl and a boy are pulling in opposite directions on a rope. The forces acting on the rope are shown in the diagram. girl boy 200 N 150 N rope Which single force has the same effect as the two forces shown? A 50 N acting towards the girl B 350 N acting towards the girl C 50 N acting towards the boy D 350 N acting towards the boy

Accepted Answer

A

Question 8

8 Objects with different masses are hung on a 10 cm spring. The diagram shows how much the spring stretches. 10 cm 20 cm 30 cm 100 g M The extension of the spring is directly proportional to the mass hung on it. What is the mass of object M? A 110 g B 150 g C 200 g D 300 g

Accepted Answer

C

Question 9

9 What is designed to change electrical energy into kinetic energy? A capacitor B generator C motor D transformer

Accepted Answer

C

Question 10

10 A power station uses nuclear fission to obtain energy. In this process, nuclear energy is first changed into A chemical energy. B electrical energy. C gravitational energy. D internal energy.

Accepted Answer

D

Question 11

11 A ball is released from rest and rolls down a track from the position shown. What is the furthest position the ball could reach? ball C starts here B D A

Accepted Answer

B

Question 12

12 A water manometer is used to measure the pressure of a gas supply to a house. It gives a reading of h cm of water. gas supply h cm Why is it better to use water rather than mercury in this manometer? A h would be too large if mercury were used. B h would be too small if mercury were used. C The tube would need to be narrower if mercury were used. D The tube would need to be wider if mercury were used.

Accepted Answer

B

Question 13

13 A farmer has two carts. The carts have the same weight, but one has four narrow wheels and the other has four wide wheels. narrow wheel wide wheel In rainy weather, which cart sinks less into soft ground, and why? cart wheels why A narrow greater pressure on the ground B narrow less pressure on the ground C wide greater pressure on the ground D wide less pressure on the ground

Accepted Answer

D

Question 14

14 Viewed through a microscope, very small particles can be seen moving with Brownian motion. Which line in the table is correct? type of motion particles are of particles suspended in A vibration a liquid or a gas B vibration a solid, a liquid or a gas C random a liquid or a gas D random a solid, a liquid or a gas

Accepted Answer

C

Question 15

15 A measured mass of gas is placed in a cylinder at atmospheric pressure and is then slowly compressed. piston gas piston pushed in The temperature of the gas does not change. What happens to the pressure of the gas? A It drops to zero. B It decreases, but not to zero. C It stays the same. D It increases.

Accepted Answer

D

Question 16

16 The graph shows the change in temperature of a material as it is heated. Which part on the graph shows when the material is boiling? D temperature C B A time

Accepted Answer

D

Question 17

17 An experiment is set up as shown. pressure gauge air flask water heat What does the pressure gauge show as the air in the flask becomes hotter? A a steady pressure B a decrease in pressure C an increase in pressure D an increase and then a decrease in pressure

Accepted Answer

C

Question 18

18 An iron bar is held with one end in a fire. The other end soon becomes too hot to hold. hand fire iron bar How has the heat travelled along the iron bar? A by conduction B by convection C by expansion D by radiation

Accepted Answer

A

Question 19

19 The diagram shows a block of ice placed in a warm room. At which point is the temperature the lowest? A B clamp C ice table D

Accepted Answer

D

Question 20

20 The drawing shows a wave. Which labelled distance is the wavelength? A B D C

Accepted Answer

C

Question 21

21 Radio waves are received at a house at the bottom of a hill. hill The waves reach the house because the hill has caused them to be A diffracted. B radiated. C reflected. D refracted.

Accepted Answer

A

Question 22

22 Which diagram correctly shows a ray of light passing through a rectangular glass block? A B C D

Accepted Answer

A

Question 23

23 The ray diagram shows how an image is formed by a converging lens. 24 cm 10 cm 8 cm What is the focal length of this lens? A 8 cm B 10 cm C 18 cm D 24 cm

Accepted Answer

B

Question 24

24 A fire alarm is not loud enough. An engineer adjusts it so that it produces a note of the same pitch which is louder. What effect does this have on the amplitude and on the frequency of the sound? amplitude frequency A larger larger B larger same C same larger D same same

Accepted Answer

B

Question 25

25 To estimate the width of a valley, a climber starts a stopwatch as he shouts. He hears an echo from the opposite side of the valley after 1.0 s. sound climber valley The sound travels at 340 m / s. What is the width of the valley? A 85 m B 170 m C 340 m D 680 m

Accepted Answer

B

Question 26

26 Which material is used for the core of an electromagnet? A aluminium B copper C iron D steel

Accepted Answer

C

Question 27

27 A brass rod is positioned in an east-west direction and a plotting compass is placed at each end. brass rod N plotting compass Which diagram shows the positions of the needles of the plotting compasses? A B C D

Accepted Answer

A

Question 28

28 How many of the following materials conduct electricity? aluminium silver iron plastic A 1 B 2 C 3 D 4

Accepted Answer

C

Question 29

29 In which circuit does the voltmeter read the potential difference across the lamp? A B V V C D V V

Accepted Answer

D

Question 30

30 In the circuit below, X and Y are identical 6 V lamps. 6 V switch X Y What happens when the switch is closed? A X lights more brightly than Y. B Y lights more brightly than X. C X and Y light with equal brightness. D Neither X nor Y light.

Accepted Answer

C

Question 31

31 The diagram shows a circuit with three ammeters, X, Y and Z. A X Y A Z A Which set of readings is possible? X Y Z A 2 A 3 A 5 A B 3 A 2 A 5 A C 3 A 3 A 3 A D 5 A 2 A 3 A

Accepted Answer

D

Question 32

32 A lamp is to be connected in a circuit so that the p.d. across it can be varied from 0 to 6 V. Which circuit would be most suitable? A B 6 V 6 V C D 6 V 6 V

Accepted Answer

B

Question 33

33 A student makes the circuit shown. 5 A fuse The fuse has blown and stopped the current. What could have caused this? A The current rating of the fuse was too high. B The current was too large. C The lamp was loose. D The voltage was too small.

Accepted Answer

B

Question 34

34 Which graph shows the output voltage from a simple a.c. generator? voltage A 0 time voltage B 0 time voltage C 0 time voltage D 0 time

Accepted Answer

D

Question 35

35 A transformer has 50 turns on its primary coil and 100 turns on its secondary coil. An a.c. voltage of 25.0 V is connected across the primary coil. 25.0 V primary coil secondary coil 50 turns 100 turns What is the voltage across the secondary coil? A 12.5 V B 50.0 V C 175 V D 200 V

Accepted Answer

B

Question 36

36 Two circuits are set up as shown. The iron rods are placed close together, and are free to move. S iron rod iron rod X What happens to the size of the gap at X when switch S is closed? A It decreases. B It decreases then increases. C It increases. D It does not change.

Accepted Answer

A

Question 37

37 The diagram shows a simple cathode-ray tube. Which part emits the electrons? – + D A B C

Accepted Answer

B

Question 38

38 Which type of radiation has the greatest ionising effect? A α-particles B β-particles C γ-rays D all have the same ionising effect

Accepted Answer

A

Question 39

39 A powder contains 400 mg of a radioactive material that emits α-particles. The half-life of the material is 5 days. What mass of that material remains after 10 days? A 0 mg B 40 mg C 100 mg D 200 mg

Accepted Answer

C

Question 40

40 In the symbol below, A is the nucleon number and Z is the proton number. A X Z What is represented by the symbol? A an electron B a neutron C a nuclide D an X-ray

Accepted Answer

C

Question paper20 pages

Mark scheme4 pages

Questions as text

Q1 · A decorator wishes to calculate the area of a bathroom tile so that he can estimate the…

Q2 · The three balls shown are dropped from a bench

Q3 · A car accelerates from traffic lights

Q4 · Which statement is correct?

Q5 · Two blocks X and Y are placed on a beam as shown

Q6 · The masses of a measuring cylinder before and after pouring some liquid into it are shown…

Q7 · A girl and a boy are pulling in opposite directions on a rope

Q8 · Objects with different masses are hung on a 10 cm spring

Q9 · What is designed to change electrical energy into kinetic energy?

Q10 · A power station uses nuclear fission to obtain energy

Q11 · A ball is released from rest and rolls down a track from the position shown

Q12 · A water manometer is used to measure the pressure of a gas supply to a house

Q13 · A farmer has two carts

Q14 · Viewed through a microscope, very small particles can be seen moving with Brownian motion

Q15 · A measured mass of gas is placed in a cylinder at atmospheric pressure and is then slowly…

Q16 · The graph shows the change in temperature of a material as it is heated

Q17 · An experiment is set up as shown

Q18 · An iron bar is held with one end in a fire

Q19 · The diagram shows a block of ice placed in a warm room

Q20 · The drawing shows a wave

Q21 · Radio waves are received at a house at the bottom of a hill

Q22 · Which diagram correctly shows a ray of light passing through a rectangular glass block?

Q23 · The ray diagram shows how an image is formed by a converging lens

Q24 · A fire alarm is not loud enough

Q25 · To estimate the width of a valley, a climber starts a stopwatch as he shouts

Q26 · Which material is used for the core of an electromagnet?

Q27 · A brass rod is positioned in an east-west direction and a plotting compass is placed at…

Q28 · How many of the following materials conduct electricity?

Q29 · In which circuit does the voltmeter read the potential difference across the lamp?

Q30 · In the circuit below, X and Y are identical 6 V lamps

Q31 · The diagram shows a circuit with three ammeters, X, Y and Z

Q32 · A lamp is to be connected in a circuit so that the p.d

Q33 · A student makes the circuit shown

Q34 · Which graph shows the output voltage from a simple a.c

Q35 · A transformer has 50 turns on its primary coil and 100 turns on its secondary coil

Q36 · Two circuits are set up as shown

Q37 · The diagram shows a simple cathode-ray tube

Q38 · Which type of radiation has the greatest ionising effect?

Q39 · A powder contains 400 mg of a radioactive material that emits α-particles

Q40 · In the symbol below, A is the nucleon number and Z is the proton number

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