All Questions: Cambridge IGCSE Physics - 0625 - Supplement Paper 2 2020 Winter Zone 2
Theory
MCQ
01.
MCQ 1 Marks
CH1 - MEASUREMENTS AND UNITS

The diagram shows a measuring device.
For which measurement is this device suitable?

02.
MCQ 1 Marks
CH2 - FORCES AND MOTION

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

Which row describes the motion of the object at times P and Q?

03.
MCQ 1 Marks
CH2 - FORCES AND MOTION

A concrete block falls vertically from an aeroplane.
The concrete block falls into the sea and sinks.
Which graph shows the vertical motion of the concrete block?

04.
MCQ 1 Marks
CH2 - FORCES AND MOTION

Which quantity is weight an example of?

05.
MCQ 1 Marks
CH2 - FORCES AND MOTION

Which statement about the mass of an object is correct?

06.
MCQ 1 Marks
CH1 - MEASUREMENTS AND UNITS

A rectangular metal block is 20 cm long.
The cross-sectional area of the block is 25 cm\(^2\).
The mass of the block is 4000 g.
What is the density of the metal?

07.
MCQ 1 Marks
CH3 - FORCES AND PRESSURE

The diagram shows a beam lying on the ground. End Q is lifted from the ground by the force $F$.
End P of the beam remains on the ground.



The length of the beam is 3.0 m and its weight is 600 N.
The centre of mass of the beam at G is 1.0 m from end P.
What is the size of the force $F$ when it just raises end Q from the ground?

08.
MCQ 1 Marks
CH3 - FORCES AND PRESSURE

The diagram shows a stand. The stand holds a heavy mass above the bench.
Which two changes would definitely make the stand more stable?

09.
MCQ 1 Marks
CH2 - FORCES AND MOTION

A footballer kicks a stationary football.
His foot is in contact with the ball for 0.050 s.
The mass of the ball is 0.40 kg.
The speed of projection of the ball is 25 m/s.
What is the average force exerted on the ball by his foot?

10.
MCQ 1 Marks
CH4 - FORCES AND ENERGY

A woman of mass 50 kg has 81 J of kinetic energy.
What is her speed?

11.
MCQ 1 Marks
CH4 - FORCES AND ENERGY

What is the source of the Sun’s energy?

12.
MCQ 1 Marks
CH4 - FORCES AND ENERGY

To calculate the power produced by a force, the size of the force must be known.
What else needs to be known to calculate the power?
[Table_1]

13.
MCQ 1 Marks
CH3 - FORCES AND PRESSURE

A research submarine is at a depth of 10\,000\,\text{m} below the surface of the sea.
The average density of the water above the submarine is 1030\,\text{kg/m}^3.
The atmospheric pressure at the surface of the sea is 103\,000\,\text{Pa}.
How many times greater is the pressure due to the sea water than the atmospheric pressure?

14.
MCQ 1 Marks
CH3 - FORCES AND PRESSURE

The diagram shows a mercury barometer. Which height is used as a measurement of atmospheric pressure?

15.
MCQ 1 Marks
CH5 - THERMAL EFFECTS

A student splashes water on to her face. Here are three statements about the effects.

P The water uses energy to evaporate.
Q The water gains energy from the student.
R The face of the student cools.

Which statements are correct?

16.
MCQ 1 Marks
CH5 - THERMAL EFFECTS

A bimetallic strip is used to control the temperature of electrical appliances. It is made of two different metals fixed together. The diagram shows the shape of the bimetallic strip before and after heating. Which statement is correct?

17.
MCQ 1 Marks
CH5 - THERMAL EFFECTS

A student writes three statements about thermocouples.
1 They have a small thermal capacity.
2 They respond very slowly to temperature changes.
3 They can measure temperatures above 500°C.
Which statements are correct?

18.
MCQ 1 Marks
CH5 - THERMAL EFFECTS

Four blocks are made from different metals. Each block is heated for five minutes with an identical heater. Assume there is no energy loss from the blocks. The table gives the masses of the blocks and the temperature rises. Which metal has the highest specific heat capacity?
[Table_1]

19.
MCQ 1 Marks
CH5 - THERMAL EFFECTS

A scientist measures the air temperature at different heights from the floor in a cave. The results are recorded in the table.
[Table_1]
Why does altering the height affect the temperature of the air?

20.
MCQ 1 Marks
CH5 - THERMAL EFFECTS

Four solid spheres made of the same metal are heated to the same temperature. Which sphere initially loses thermal energy by radiation at the greatest rate?

21.
MCQ 1 Marks
CH6 - WAVES AND SOUNDS

Which row correctly describes light waves?
[Table_1]

22.
MCQ 1 Marks
CH6 - WAVES AND SOUNDS

A radio transmitter broadcasts at a frequency of 200\, \text{kHz}.
What is the wavelength of these radio waves?

23.
MCQ 1 Marks
CH7 - RAYS AND WAVES

An optical lever is a very sensitive device for detecting small rotations. A lamp sends a narrow beam of light on to a small plane mirror attached to a shaft whose rotation is to be measured. The operation of the device is shown in plan view.

The beam from the lamp reflects from the mirror to give a small spot of light on a scale placed just above the lamp. The shaft and mirror rotate through 1°. The spot of light moves along the scale.
The table shows the angle $\theta$ through which the reflected beam rotates and the conditions required for high sensitivity.
Which row is correct?

24.
MCQ 1 Marks
CH6 - WAVES AND SOUNDS

A student draws a diagram to illustrate the different sections of a longitudinal wave.
Which labelled section is a rarefaction?

25.
MCQ 1 Marks
CH7 - RAYS AND WAVES

The diagram shows white light passing through a prism.
Which description of what happens as the light passes into the prism is correct?

26.
MCQ 1 Marks
CH6 - WAVES AND SOUNDS

A police car with its siren sounding is stationary in heavy traffic. A pedestrian notices that, although the loudness of the sound produced does not change, the pitch varies.
Which row describes the amplitude and the frequency of the sound?
[Table_1]

27.
MCQ 1 Marks
CH9 - MAGNETS AND CURRENTS

A piece of steel is slightly magnetised. It is hit several times with a hammer. What effect will this have on the steel?
[Table_1]

28.
MCQ 1 Marks
CH9 - MAGNETS AND CURRENTS

A student sets up four experiments using bar magnets and other metal objects. The N and S poles of the bar magnets are labelled N and S.

1. ![Magnet 1](\[Image_1\])
2. ![Magnet 2](\[Image_2\])
3. ![Magnet 3](\[Image_3\])
4. ![Magnet 4](\[Image_4\])

Which pairs attract each other?

29.
MCQ 1 Marks
CH9 - MAGNETS AND CURRENTS

Which diagram represents the strength and direction of the magnetic field around a current-carrying conductor? (The direction of the current is into the page.)

30.
MCQ 1 Marks
CH8 - ELECTRICITY

Which quantity is defined as the energy transferred by a cell in driving unit charge around a complete circuit?

31.
MCQ 1 Marks
CH8 - ELECTRICITY

There is a current in a variable resistor when a potential difference (p.d.) is applied across it. In which situation is the current increased?

32.
MCQ 1 Marks
CH8 - ELECTRICITY

A student uses four ammeters P, Q, R, and S to measure the current in different parts of the circuit shown.
Which two ammeters read the largest current?

33.
MCQ 1 Marks
CH10 - ELECTRON AND ELECTRONICS

Which combination of logic gates gives the truth table shown?
[Table_1: inputs and outputs]

X    Y    Z
0    0    1
0    1    1
1    0    1
1    1    0

[Image_1: Logic Gate Diagrams A, B, C, D]

34.
MCQ 1 Marks
CH9 - MAGNETS AND CURRENTS

The diagram shows an a.c. generator used to power a lamp. The coil rotates in a clockwise direction.
Which magnetic poles are X and Y?

35.
MCQ 1 Marks
CH9 - MAGNETS AND CURRENTS

A transformer is needed to convert a supply of 240 V a.c. into 4800 V a.c.

Which pair of coils would be suitable for this transformer?
[Table_1]

36.
MCQ 1 Marks
CH9 - MAGNETS AND CURRENTS

The diagram shows a coil of wire wrapped around a soft-iron rod.
The wire is connected to a d.c. power supply as indicated.
The apparatus is in a region which is totally shielded from the Earth's magnetic field.



A small compass needle is placed at point P.
In which direction does the N pole of the compass needle point?

37.
MCQ 1 Marks
CH11 - ATOMS AND RADIOACTIVITY

Which statement is correct for the nucleus of any atom?

38.
MCQ 1 Marks
CH11 - ATOMS AND RADIOACTIVITY

The symbol represents a nucleus of zinc. \[ \text{ }^{68}_{30}\text{Zn} \] Which row gives the numbers of protons and neutrons in this nucleus? [Table_1]

39.
MCQ 1 Marks
CH11 - ATOMS AND RADIOACTIVITY

The diagram shows a beam of $\beta$-particles passing through a strong electric field. In which direction will the $\beta$-particles be deflected?

40.
MCQ 1 Marks
CH11 - ATOMS AND RADIOACTIVITY

Which equation represents the \( \beta \)-decay of lead-209?