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IGCSE Sample Examination Paper

PHYSICS PAPER 2 Core 1 hour 15 minutes

Candidate Name:

Answer questions on the Question Paper.

Answer all questions.

The questions in this sample were taken from Cambridge IGCSE Physics 0625 Paper 2

1 Q1 November 2006

2 Q3 June 2006

3 Q6 November 2007

4 Q5 November 2006

5 Q4 June 2005

6 Q5 June 2007

7 Q8 November 2007

8 Q7 June 2005

9 Q12 November 2006

10 Q8 June 2006

11 Q11 November 2005

12 Q11 November 2006

2


A worker on the production line in a factory is making brackets. An inspector times the worker 1 whilst he makes 5 brackets. To start, the stopwatch is set to zero.

After 5 brackets have been made, the stopwatch is as shown in Fig.1.1.

Fig.1.1

a State the reading on the stopwatch.

reading 5 s [1]

b Calculate the time taken to make 1 bracket.

time taken 5 s [2]

c The worker has a target of making 300 brackets per hour.

Does the worker meet his target? Tick one box and show the working which led you to your answer.

Does the worker meet his target?

Yes

No

[4]

[Total: 7]

3


Fig.2.1 (a) shows a measuring cylinder, containing some water, on a balance. 2

Fig.2.1 (b) shows the same arrangement with a stone added to the water.

Fig.2.1

a Which two readings should be subtracted to give the volume of the stone?

reading and reading [1]

b Which two readings should be subtracted to give the mass of the stone?

reading and reading [1]

c In a certain experiment,

mass of stone 5 57.5 g,

volume of stone 5 25 cm3.

i Write down the equation linking density, mass and volume.

[1]

ii Calculate the density of the stone.

density of stone 5 [3]

[Total: 6]

4


A motorcyclist drives along a straight road. Fig. 3.1 gives information about the first 10 s of his ride.3

Fig. 3.1

a From the information on Fig. 3.1,

i describe the motion of the motorcyclist by ticking one of the following boxes,

constant speed

uniform acceleration

uniform deceleration

[1]

ii estimate the average speed of the motorcyclist during the 10 s,

average speed 5 m/s [1]

iii calculate the distance travelled during the 10 s.

distance travelled 5 m [2]

b State why the distance travelled in the first 5 s is less than half of the distance travelled in the first 10 s of the journey.

[1]

[Total: 5]

a4 State the two factors on which the turning effect of a force depends.

1.

2. [2]

5


b Forces F1 and F2 are applied vertically downwards at the ends of a beam resting on a pivot P. The beam has weight W. The beam is shown in Fig.4.1.

Fig.4.1

i Complete the statements about the two requirements for the beam to be in equilibrium.

1. There must be no resultant

2. There must be no resultant

ii The beam in Fig.4.1 is in equilibrium. F is the force exerted on the beam by the pivot P.

Complete the following equation about the forces on the beam.

F 5

iii Which one of the four forces on the beam does not exert a moment about P?

[4]

[Total: 6]

Fig.5.1 represents a hydroelectric system for generating electricity.5

Fig.5.1

Answer the following questions, using words from this list.

chemical electrical gravitational internal (heat)

kinetic light nuclear sound strain

a What sort of energy, possessed by the water in the reservoir, is the main source of energy for this system?

[1]

6


b When the water flows down the pipe, it is moving. What sort of energy does it possess because of this movement?

[1]

c The water makes the turbines in the power station rotate. What sort of energy do the turbines possess because of their rotation?

[1]

d What sort of energy does the power station generate?

[1]

e None of the energy transfer processes is perfect. In what form is most of the wasted energy released?

[1]

[Total: 5]

Here is a list of descriptions of molecules in matter.6

description solid gas

free to move around from place to place

can only vibrate about a fixed position

closely packed

relatively far apart

almost no force between molecules

strong forces are involved between moleules

a In the columns alongside the descriptions, put ticks next to those which apply to the molecules in

i a solid,

ii a gas. [4]

b The water in a puddle of rainwater is evaporating.

Describe what happens to the molecules when the water evaporates.

[2]

[Total: 6]

7


An object OX is placed in front of a converging lens. The lens forms an image IY. 7

Fig. 7.1 shows two rays from the object to the image.

Fig. 7.1

a On Fig. 7.1,

i clearly mark and label the principal focus and the focal length of the lens, [3]

ii draw a third ray from X to Y. [1]

b The following list contains descriptions that can be applied to images.

Tick any which apply to the image shown in Fig. 7.1.

real

virtual

enlarged

diminished

inverted

upright

image distance less than object distance

image distance more than object distance

[4]

c State two things that happen to the image in Fig. 7.1 when the object is moved further away from the lens.

1.

2. [2]

[Total: 10]

8


Fig.8.1 shows the various regions of the electromagnetic spectrum.8

Fig.8.1

Two of the regions have been labelled.

a In the boxes provided, write the names of the other regions. [4]

b Only one of the following types of wave is not an electromagnetic wave.

Tick one box to show which type of wave is not electromagnetic.

microwave

radar

sound

[1]

[Total: 5]

Fig.9.1 shows an electric circuit.9

Fig.9.1

a The lamp lights, but the ammeter needle moves the wrong way.

What change should be made so that the ammeter works correctly?

[1]

9


b What does an ammeter measure?

[1]

c In the space below, draw a circuit diagram of the circuit in Fig.9.1, using correct circuit symbols.

[2]

d i Name the instrument that would be needed to measure the potential difference (p.d.) across the 15 W resistor.

ii Using the correct symbol, add this instrument to your circuit diagram in (c), in a position to measure the p.d. across the 15 W resistor.

[2]

e The potential difference across the 15 W resistor is 6V.

Calculate the current in the resistor.

current 5 A [3]

f Without any further calculation, state the value of the current in the lamp.

lamp current 5 A [1]

g Another 15 W resistor is connected in parallel with the 15 W resistor that is already in the circuit.

i What is the combined resistance of the two 15 W resistors in parallel?

Tick one box.

30 W

15 W

7.5 W

zero

ii State what effect, if any, adding this extra resistor has on the current in the lamp.

[2]

[Total: 12]

10


a 10 State what is meant by the north pole of a magnet.

[2]

b The north poles of two magnets are brought close together.

What sort of force, if any, is there between the poles? Tick one box.

attractive

repulsive

no force

[1]

c Fig.10.1 shows the north pole of a magnet close to an iron bar.

Fig.10.1

i The iron bar is attracted to the north pole because of induced magnetism in the iron bar.

On Fig.10.1, mark clearly the induced north pole and the induced south pole of the iron bar.

[1]

ii State what happens to the induced magnetism in the iron bar when the magnet is taken away.

[1]

[Total: 5]

11


Fig.11.1 shows a tube for producing cathode rays. The tube contains various parts.11

Fig.11.1

A spot is formed on the screen by the cathode rays.

a What do cathode rays consist of? [1]

b Which part, A, B, C or D, must be heated to create the cathode rays? [1]

c i Which part, A, B, C or D, is coated with fluorescent material? [1]

ii What is the purpose of the fluorescent material?

[1]

d A potential difference is applied between the two halves of part C.

What effect does this have on the cathode rays?

[1]

e Explain why there needs to be a vacuum inside the tube.

[2]

[Total: 7]

12


The table below contains some information about uranium-238.12

proton number Z 5 92nucleon number A 5 238decays by emitting a-particle

a State how many electrons there are in a neutral atom of uranium-238.

[1]

b State where in the atom the electrons are to be found.

[1]

c State how many neutrons there are in an atom of uranium-238.

[1]

d State where in the atom the neutrons are to be found.

[1]

e State what happens to the number of protons in an atom of uranium-238 when an a-particle is emitted.

[2]

[Total: 6]

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