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PHYSICS 0625/1

PAPER 1 Multiple Choice

Tuesday 9 NOVEMBER 1999 Morning 45 minutes Additional materials:

Electronic calculator and/or Mathematical tables Multiple Choice answer sheet

Soft clean eraser

Soft pencil (type B or HB is recommended)

This question paper consists of 16 printed pages.

(NH) QK93704/4

© UCLES 1999 [Turn over

1 The digital stopwatches show the finishing times of two runners in a race.

What is the time difference between the two runners?

A 1.14 s B 7.28 s C 8.42 s D 15.70 s

2 The graph shows how the speed of an object changes with time.

For how long does the object move?

A 2 s B 4 s C 6 s D 8 s

3 Which statement is true about the weight of an object?

A Its weight is the same everywhere.

B Its weight is measured in kilograms.

C Its weight is the force of gravity on it.

D Its weight is zero on the Moon.

0 0 speed

m/s

2 4

time s

6 8

:

runner 1

min s

runner 2

min s :

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4 The diagram shows some liquid in a measuring cylinder. The mass of the liquid is 16 g.

What is the density of the liquid?

A 320 g/cm3 B 36 g/cm3 C 1.25 g/cm3 D 0.8 g/cm3

5 A heavy box is lifted by a force F, using a lever as shown.

What happens when the length xis made shorter?

x

moves size of F A

6 In which situation is there no resultant force on the car?

7 A steel ball is allowed to roll along a frictionless track.

What is the highest point the ball reaches before rolling backwards? Ignore the effects of friction.

8 What is the source of geothermal energy?

A coal B hot rocks C tides D waves

steel ball

D C

B

A 40 m/s 30 m/s A decreasing speed on a level road

30 m/s B going at a constant speed uphill

30 m/s

40 m/s C increasing speed downhill

30 m/s 40 m/s D increasing speed on a level road

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9 Which object converts sound energy into electrical energy?

A electric bell B loudspeaker C microphone D radio

10 A manometer is connected to a gas tap. Diagram X shows the liquid levels before opening the gas tap. The gas pressure is greater than atmospheric pressure.

Which diagram shows what happens to the liquid levels after opening the gas tap?

11 The diagram shows water in an outdoor swimming pool.

The water level drops during a hot, sunny day.

What does this show?

A that water boils at only one temperature

B that water can evaporate below its boiling point C that water can expand as it becomes warmer D that water is a poor conductor of heat

water

swimming pool Sun gas tap X

liquid

before opening gas tap from gas supply

A B C D

12 A closed container full of gas is left to stand on a bench for a long time.

Which statement about the molecules of the gas is correct?

A All the molecules are at the bottom of the container.

B The fastest moving molecules are at the top of the container.

C The molecules are moving at random throughout the container.

D The pressure caused by the molecules on the container is greatest at the top of the container.

13 Metal railway lines can be laid in sections with small gaps in between, as shown. The sections are connected by metal plates.

What is the reason for leaving the gaps?

A to allow for contraction when the temperature falls B to allow for expansion when the temperature rises C to prevent an electric current in the railway line D to stop large vibrations

14 Four cooking pots are each made of iron.

Which cooking pot has the greatest heat capacity?

A B C D

railway line gap

metal plate

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15 Two balloons are inflated at the same room temperature until they have the same volume of air inside. They are then sealed. Balloon X is placed in a refrigerator for some time, while balloon Y stays at room temperature. The diagram shows the balloons after this time.

Assuming no air has leaked out of the balloons, which statement is correct?

A The air in balloon X has contracted.

B The air in balloon Y has expanded.

C The rubber of balloon Y has expanded.

D The rubber of balloon X has frozen and has compressed the air.

16 On a day when the temperature is low, the metal handlebars of a bicycle feel colder than the plastic handlegrips.

What is the explanation for this?

A Metals are colder than plastics.

B Metals conduct heat better than plastics.

C Plastics are softer than metals.

D Plastics conduct heat better than metals.

17 A man puts a saucer on top of a cup of tea to keep the tea hot.

Why does this help to keep the tea hot?

A Conduction through the cup is reduced.

B Convection in the air above the surface of the tea is reduced.

C Convection in the tea is reduced.

D Radiation from the shiny surface of the cup is reduced.

saucer

18 The following diagram represents a wave.

What is the wavelength of the wave?

A 8 cm B 4 cm C 2 cm D 1 cm

19 The diagram shows a wavefront striking a plane reflecting surface PQ.

Which of the following is changed by reflection?

A direction B frequency C speed D wavelength

20 A child is 1 m tall. She stands 2 m in front of a plane mirror.

2 m

1 m mirror

P Q

wavefront 1 cm

1 cm

9

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21 Which diagram shows a possible path for a ray of light passing through water in a beaker with a mirror at the bottom?

22 An electric bell is suspended in a bell-jar as shown. Switch S is closed and air is then pumped from the jar. The sound of the bell becomes quieter.

Why does the sound become quieter?

A Air is needed for an electric current in the bell.

B Air is needed for the bell’s electromagnet to operate.

C Air is needed for the bell to vibrate.

D Air is needed to transmit sound waves.

S

electric bell

bell-jar

to vacuum pump

A B C D

water

mirror

23 A student shouts when standing by a cliff. A short time later the student hears an echo.

Which property of sound causes the echo?

A diffraction B dispersion C reflection D refraction

24 The diagram shows the circuit for an electromagnet. The core of the electromagnet can be made from different materials.

When switch S is closed, which material attracts the largest number of iron nails?

A aluminium B copper C glass D iron

S material under test

iron nails attracted to material student

cliff

11

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25 A plotting compass is placed at each end of a magnet.

Which diagram shows the positions of the pointers of the plotting compasses?

26 Two very light, charged balls P and Q are hung, one above the other, from nylon threads. When a negatively charged plastic sheet is placed alongside them, P is repelled and Q is attracted.

What are the original charges on P and on Q?

P

charge on P charge on Q A

27 The meter in the circuit measures the potential difference across the resistor.

Which unit is marked on the scale of the meter?

A amp B ohm C volt D watt

28 Two resistors are connected in a circuit as shown.

What is the total resistance of the resistors?

A less than 2 Ω

B between 2 Ω and 3 Ω C between 3 Ω and 5 Ω D more than 5 Ω

2 X

3 X

meter

13

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29 The diagram shows a circuit with three lamps and a cell.

What is the circuit diagram for the above arrangement?

30 Which device can be used to switch off the current in a circuit when the current becomes too large?

A capacitor B circuit-breaker

C light-dependent resistor D transformer

31 A hair dryer should

(i) allow the fan to work with or without the heater, (ii) not allow the heater to work without the fan.

Which circuit should be used?

M

32 A straight wire carries an electric current at right angles to the page. The black dot in each diagram shows where the wire passes through the page.

Which diagram shows the magnetic field pattern around the wire?

33 When electrical energy is transmitted over large distances, a high voltage is used.

Why is this better than using a low voltage?

A There is a greater current in the cables.

B There is less chance of an electric shock.

C There is less heating in the cables.

D Thicker cables can be used.

34 Which graph shows the output voltage V of an a.c. generator?

35 What is the symbol for a capacitor?

A B C D

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36 A waveform is displayed on the screen of a cathode-ray oscilloscope (c.r.o.).

The time base now changes from 1 ms/cm to 2 ms/cm.

Which diagram shows the new appearance of the waveform on the screen?

37 The half-life of a radioactive substance is 10 days.

Which of the following statements is correct?

A After 5 days, half of the original radioactive nuclei remain.

B After 5 days, a quarter of the original radioactive nuclei remain.

C After 10 days, half of the original radioactive nuclei remain.

D After 20 days, none of the original radioactive nuclei remain.

A B

C D

1 cm

38 What can most -particles pass through?

A 2 mm of aluminium B 2 mm of lead C 2 cm of air D 2 cm of concrete

39 The diagram represents an atom.

Which of the following describes the atom?

40 Which statement about the numbers of particles in a neutral atom must be correct?

A number of protons = number of electrons B number of protons = number of neutrons

C number of protons + number of electrons = number of neutrons D number of protons + number of neutrons = number of electrons

nucleus electron charge on electron

A

This question paper consists of 18 printed pages and 2 blank pages.

SB (SLC/DJ) QF05707/3

© UCLES 2000 [Turn over

International General Certificate of Secondary Education

UNIVERSITY OF CAMBRIDGE LOCAL EXAMINATIONS SYNDICATE

PHYSICS 0625/1

PAPER 1 Multiple Choice

MAY/JUNE SESSION 2000 45 minutes

Additional materials:

Electronic calculator and/or Mathematical tables Multiple Choice answer sheet

Soft clean eraser

Soft pencil (type B or HB is recommended)

TIME 45 minutes

INSTRUCTIONS TO CANDIDATES

Do not open this booklet until you are told to do so.

Write your name, Centre number and candidate number on the answer sheet in the spaces provided unless this has already been done for you.

There are forty questions in this paper. Answer all questions. For each question, there are four possible answers, A, B, C and D. Choose the one you consider correct and record your choice in soft pencil on the separate answer sheet.

Read very carefully the instructions on the answer sheet.

INFORMATION FOR CANDIDATES

Each correct answer will score one mark. A mark will not be deducted for a wrong answer.

Any rough working should be done in this booklet.

1 A stopwatch is used to time a student running a 1500 m race.

What is the reading on the stopwatch?

A 658.31 seconds

B 6 minutes 58.31 seconds C 6.58 minutes 31 seconds D 6 hours 58 minutes 31 seconds

2 A student lets 100 drops of water fall into a measuring cylinder which already contains some water.

What is the volume of one drop?

A 0.05 cm3 B 0.25 cm3 C 5.0 cm3 D 25 cm3

3 Which speed-time graph represents the motion of a car moving at constant speed?

A

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4 A student investigates the speed of a trolley and finds that it is 50 cm/s, and one second later that it is 150 cm/s.

What is the acceleration of the trolley?

A 50 cm/s2 B 100 cm/s2 C 150 cm/s2 D 200 cm/s2

5 Which property of an object is measured in newtons?

A density B mass C volume D weight

6 Which instrument can be used to give a direct measurement of the mass of a rock on the Moon?

7 The diagrams show an empty beaker on a balance and some liquid in a measuring cylinder.

When all the liquid is poured into the beaker, the balance reading changes to 140 g.

What is the density of the liquid?

A (140 ÷ 60) g/cm3 B (60 ÷ 40) g/cm3 C (40 ÷ 60) g/cm3 D (60 ÷ 140) g/cm3

8 The diagrams show a brick resting on a smooth surface. Two equal forces, F, act on the brick.

Which brick does not move?

9 The diagram shows four ways of lifting a heavy box by using a lever.

Which way requires the smallest effort to lift the box?

10 The diagrams show a diver climbing some steps and jumping off a diving board.

Where does the diver have the most gravitational potential energy (energy of position)?

A B C D

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11 The diagrams show four schemes which use a barrier to convert tidal energy into electrical energy.

Which scheme has the greatest output of electrical energy?

12 The diagram shows a mercury barometer.

What is at X?

A air at atmospheric pressure B air at high pressure

C a vacuum D water vapour

X

13 Which diagram shows the best shape for a dam wall?

14 A fixed mass of gas is kept in a sealed cylinder, so that its volume does not change.

How does a change in the temperature affect the pressure of the gas?

GAS dam wall water

A

dam wall water B

dam wall water C

dam wall water

D

temperature change pressure change

A decreases increases

B decreases unchanged

C increases decreases

D increases increases

7

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15 The diagram shows some molecules in a liquid.

Molecules A and D are fast-moving, molecules B and C are slow-moving.

Which of these molecules is the most likely to escape from the liquid by evaporation?

16 A mercury thermometer without a scale is placed in pure melting ice.

What does the level of mercury in the thermometer show?

A the boiling point of water B the lower fixed point

C the melting point of mercury D the upper fixed point

mercury

pure melting ice

water A (fast) B (slow)

liquid

C (slow) D (fast)

17 Some ice is heated at a constant rate in a beaker. The ice melts and later the water boils for a short while.

Which graph shows how the temperature changes with time?

18 A person lifts a hot pan from a stove. Although the pan is hot, the handle is cool.

What is the handle made of?

A aluminium B copper C iron D wood

19 Warm water enters a tank of cold water from the side.

What happens to the warm water and why?

warm water cold water

A

warm water why?

A rises It is less dense than cold water.

B rises It is more dense than cold water.

C sinks It is less dense than cold water.

D sinks It is more dense than cold water.

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20 Plane waves produced in a ripple tank arrive at a barrier that has a small gap.

What causes the wave pattern that is produced beyond the barrier?

A diffraction B dispersion C reflection D refraction

21 A floating cork moves up and down as a water wave passes it.

A candle flame moves backwards and forwards as a sound wave passes it.

What does this show about water waves and sound waves?

movement of flame

direction of sound wave movement of cork

direction of water wave waves moving in

this direction

water waves sound waves A longitudinal longitudinal B longitudinal transverse C transverse longitudinal D transverse transverse

22 Which diagram shows how a real image is formed by the lens?

23 A ray of light is reflected from two mirrors as shown.

What is the angle of reflection at point X?

A 40° B 50° C 60° D 80°

60° 80°

40° 50° 30° 30°

X lens

image A

lens

image B

lens

image C

lens

image D

11

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24 Two windows are double-glazed. Window X is made of two pieces of glass with a vacuum between them. Window Y is made of two pieces of plastic with air between them.

Which window is better at stopping sound passing through and why?

25 The diagram shows a student standing 165 m in front of a wall. He claps his hands once.

How long after the handclap does he hear the echo?

[The speed of sound in air is 330 m/s.]

A 0.25 s B 0.50 s C 1.0 s D 2.0 s

wall

165 m glass

vacuum

plastic

air

window X window Y

window why?

A X Sound cannot travel through a vacuum.

B X Sound cannot travel through glass.

C Y Sound cannot travel through air.

D Y Sound cannot travel through plastic.

26 A magnet is placed in a coil connected to an electrical supply.

What is the best way to demagnetise the magnet?

A Use a d.c. supply and leave the magnet inside the coil.

B Use a d.c. supply and slowly remove the magnet from the coil.

C Use an a.c. supply and leave the magnet inside the coil.

D Use an a.c. supply and slowly remove the magnet from the coil.

27 A magnet is brought near metal bars X and Y.

What are X and Y made of?

S N no effect X

S N Y

repulsion electrical supply

magnet coil

X Y

A aluminium magnetised steel B aluminium unmagnetised iron C unmagnetised iron magnetised steel D unmagnetised iron unmagnetised iron

13

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28 Which diagram shows how a voltmeter and an ammeter are connected to find the value of the resistance of resistor R?

V A

R A

V

A

R B

V

A R

R C

V

A

D

29 Two uncharged metal-coated polystyrene spheres, P and Q, are suspended side by side.

Both spheres are then given positive charges.

Which diagram shows the new positions of the spheres?

30 Component Y is placed in the circuit shown and is used to reduce the brightness of the lamp gradually.

What is component Y?

A a fuse B a relay C a switch

D a variable resistor

Y

P Q

A

P Q

B

P Q

C

P Q

D

P Q

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31 In the circuit, which ammeter shows the greatest reading?

32 A lamp is connected across the mains supply.

Which diagram shows where the fuse should be connected?

33 An electric kettle takes 12 A of current from the mains supply. When the kettle’s cable needs to be replaced, a 5 A cable is used that was originally attached to a small lamp. The original plug and fuse from the kettle’s cable are used.

Why does this cause a problem?

A The cable becomes hot and melts the insulation.

B The fuse blows as soon as the kettle is switched on.

C The kettle becomes too hot.

D The water takes too long to reach its boiling point.

live

34 Which device makes use of the magnetic effect of an electric current?

A electric bell B electric fire C fuse D lamp

35 The diagram shows a transformer, with 100 V applied to the primary coil.

What is the voltage across the secondary coil?

A 50 V B 100 V C 200 V D 800 V

36 The diagram shows part of a cathode-ray oscilloscope.

Which particles are emitted by the cathode?

A alpha (α-) particles B electrons

C neutrons D protons

particles from cathode

cathode

primary coil (40 turns)

secondary coil (80 turns) 100 V

17

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37 In the circuit shown, the brightness of the light reaching the light-dependent resistor increases.

What happens to the current through the ammeter?

A It becomes zero.

B It decreases.

C It does not change.

D It increases.

38 Which statement about an alpha (α-) particle is correct?

A It can pass through thick paper.

B It has no charge.

C It is a helium nucleus.

D It is a type of electromagnetic radiation.

light

light-dependant resistor

A ammeter

39 The graph shows the activity of a radioactive source plotted against time.

After what time is the activity one quarter of its original value?

A 1 hour B 2 hours C 3 hours D 4 hours

40 A nuclide of cobalt is shown by the symbol 6027Co.

How many protons and neutrons are there in the nucleus of this nuclide?

0 10 20 30 40 50 60 70 80

activity counts/min

0 1 2 3

time/hours

4 5

protons neutrons

A 27 33

B 27 60

C 60 27

D 60 87

Go to answers

This question paper consists of 19 printed pages and 1 blank page.

SB (KN/TC) QK07573/3

© UCLES 2000 [Turn over

International General Certificate of Secondary Education

UNIVERSITY OF CAMBRIDGE LOCAL EXAMINATIONS SYNDICATE

PHYSICS 0625/1

PAPER 1 Multiple Choice

Tuesday 7 NOVEMBER 2000 Morning 45 minutes

Additional materials:

Electronic calculator and/or Mathematical tables Multiple Choice answer sheet

Soft clean eraser

Soft pencil (type B or HB is recommended)

TIME 45 minutes

INSTRUCTIONS TO CANDIDATES

Do not open this booklet until you are told to do so.

Write your name, Centre number and candidate number on the answer sheet in the spaces provided unless this has already been done for you.

There are forty questions in this paper. Answer all questions. For each question, there are four possible answers, A, B, C and D. Choose the one you consider correct and record your choice in soft pencil on the separate answer sheet.

Read very carefully the instructions on the answer sheet.

INFORMATION FOR CANDIDATES

Each correct answer will score one mark. A mark will not be deducted for a wrong answer.

Any rough working should be done in this booklet.

1 The diagram shows a measuring cylinder.

Which unit would be most suitable for its scale?

A mm2 B mm3 C cm2 D cm3

2 The diagrams show the times on a stopclock at the start and at the finish of an experiment.

How long did the experiment take?

A 10 s B 25 s C 35 s D 45 s

3

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3 A ball is thrown up into the air. The diagram shows the ball’s path.

Ignoring air resistance, which statement about the acceleration of the ball is correct?

A It is least at point X.

B It is zero at point Y.

C It is greatest at point Z.

D It is the same at points X, Y and Z.

D It is the same at points X, Y and Z.

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