All Questions: Cambridge IGCSE Physics - 0625 - Core Paper 1 2021 Summer Zone 2
Theory
MCQ
01.
MCQ 1 Marks
CH1 - MEASUREMENTS AND UNITS

Which piece of apparatus is the most suitable for measuring the mass of a pencil sharpener?

02.
MCQ 1 Marks
CH2 - FORCES AND MOTION

A cyclist records his speed and the distance travelled during a journey. He then plots the data against time for different sections of his journey. Which graph shows a section when he is moving with constant speed?

03.
MCQ 1 Marks
CH2 - FORCES AND MOTION

Two stones of different weights fall at the same time from a table. Air resistance may be ignored.
What will happen and why?
[Table_1]

04.
MCQ 1 Marks
CH2 - FORCES AND MOTION

Diagram 1 shows a sealed plastic bottle containing a hollow glass sphere and a steel ball.

Diagram 2 shows the same bottle after it has been shaken.

Diagram 3 shows the same bottle after it has been shaken again until the broken glass is in tiny pieces.



The mass of the bottle and contents in diagram 1 is $m_1$.

The mass of the bottle and contents in diagram 2 is $m_2$.

The mass of the bottle and contents in diagram 3 is $m_3$.

Which statement gives the correct relation between $m_1$, $m_2$ and $m_3$?

05.
MCQ 1 Marks
CH2 - FORCES AND MOTION

An astronaut wants to know how much she would weigh on different moons.
She measures her mass on Earth to be 82 kg. She researches the values of $g$ on different moons and uses these values to calculate her weight.
The results are shown.
Which weight is calculated correctly?
[Table_1]

06.
MCQ 1 Marks
CH1 - MEASUREMENTS AND UNITS

A measuring cylinder contains 40 cm³ of water. A stone of mass 94 g is lowered into the water so that it is fully submerged as shown. What is the density of the stone?

07.
MCQ 1 Marks
CH2 - FORCES AND MOTION

A toy car travels down a sloping ramp at constant speed.

Which statement about the forces acting on the car is correct?

08.
MCQ 1 Marks
CH2 - FORCES AND MOTION

The extension–load graph for a spring is shown. The unstretched length of the spring is 17.0 cm.

When an object is suspended from the spring, the length of the spring is 19.2 cm.
What is the weight of the object?

09.
MCQ 1 Marks
CH4 - FORCES AND ENERGY

An object is falling through a vacuum.
Which energy transfer is taking place?

10.
MCQ 1 Marks
CH4 - FORCES AND ENERGY

This question is about four methods used to produce electrical energy. Which method has a correct description?
[Table_1]

11.
MCQ 1 Marks
CH4 - FORCES AND ENERGY

Two men, X and Y, try to move identical heavy boxes, P and Q.
Man X tries to push box P along the floor. The box does not move because an object is in the way.
Man Y lifts box Q from the floor onto a shelf.

Which man does the most work on their box, and which box gains the most energy?

12.
MCQ 1 Marks
CH3 - FORCES AND PRESSURE

A book has a mass of 400 g.
The surface of the book in contact with a table has dimensions 0.10 m × 0.20 m.
The gravitational field strength $g$ is 10 N/kg.
What is the pressure exerted on the table due to the book?

13.
MCQ 1 Marks
CH3 - FORCES AND PRESSURE

The diagrams show three containers, P, Q, and R.
Each container contains the same liquid.
The depth of the liquid is the same in each container.
Which statement about the pressure of the liquid at the bottom of the container is correct?

14.
MCQ 1 Marks
CH5 - THERMAL EFFECTS

A person taking a shower notices that water appears on the inside of the bathroom window, even though the window is some distance from the shower. Which statement explains this observation?

15.
MCQ 1 Marks
CH5 - THERMAL EFFECTS

Very small pollen grains are suspended in water. A bright light shines from the side. When looked at through a microscope, small specks of light are seen to be moving in a random, jerky manner.



What are the moving specks of light?

16.
MCQ 1 Marks
CH5 - THERMAL EFFECTS

A hole is drilled in a metal plate. What happens to the length of the plate and to the diameter of the hole when the plate is cooled? [Table_1]

17.
MCQ 1 Marks
CH5 - THERMAL EFFECTS

A liquid-in-glass thermometer uses alcohol as its liquid.
Which property of alcohol is used to measure the temperature?

18.
MCQ 1 Marks
CH5 - THERMAL EFFECTS

The thermal capacity of object Y is greater than that of object Z.
What is a consequence of this?

19.
MCQ 1 Marks
CH5 - THERMAL EFFECTS

The table gives some examples of convection and an explanation of why the convection occurs. Which row is correct? [Table_1]

20.
MCQ 1 Marks
CH5 - THERMAL EFFECTS

In which situation is radiation the main method by which energy is transferred?

21.
MCQ 1 Marks
CH6 - WAVES AND SOUNDS

Which diagram shows waves diffracting?

22.
MCQ 1 Marks
CH7 - RAYS AND WAVES

Which statement about the image of an object formed in a plane mirror is correct?

23.
MCQ 1 Marks
CH7 - RAYS AND WAVES

An object is placed in front of a thin converging lens. The diagram shows the paths of two rays from the top of the object.
An image of the object is formed on a screen to the right of the lens. How does this image compare with the object?

24.
MCQ 1 Marks
CH7 - RAYS AND WAVES

The table shows information about different colours of light.

[Table_1]

Using the data, what is the frequency of orange light?

25.
MCQ 1 Marks
CH6 - WAVES AND SOUNDS

Sound is a transfer of energy from an oscillating source. Which statement describes how sound energy is transferred?

26.
MCQ 1 Marks
CH6 - WAVES AND SOUNDS

The diagrams represent the waves produced by four sources of sound. The scales are the same for all the diagrams. Which sound has the highest frequency?

27.
MCQ 1 Marks
CH9 - MAGNETS AND CURRENTS

Two metal rods each have a painted end. The painted ends are placed next to the N pole and S pole of a bar magnet in turn.



The rods are made from iron, aluminium or magnetised steel.

[Table_1]

What are rod 1 and rod 2 made from?

28.
MCQ 1 Marks
CH9 - MAGNETS AND CURRENTS

Three piles of small nails, P, Q and R, are placed on a bench below three electromagnets. One set of nails is made of copper, one of soft iron and one of steel. Diagram 1 shows the situation when the electromagnets are switched on. Diagram 2 shows the situation when the electromagnets are then switched off. Which row correctly identifies the materials from which the nails are made?

29.
MCQ 1 Marks
CH8 - ELECTRICITY

A student rubs a plastic rod with a cloth.
The rod becomes positively charged.
What has happened to the rod?

30.
MCQ 1 Marks
CH8 - ELECTRICITY

A student connects a circuit with a resistor X. The reading on the ammeter is 2.0 A.
The reading on the voltmeter is 6.0 V.



She needs to produce a circuit with a total resistance of 10Ω.
Which resistor should she add in series to the circuit?

31.
MCQ 1 Marks
CH8 - ELECTRICITY

The diagram shows a circuit containing a battery, an ammeter, three switches, $S_1$, $S_2$ and $S_3$, and three identical lamps.

With only switch $S_1$ closed, the reading on the ammeter is 0.04 A.
Which row states the incorrect ammeter reading for the switch conditions given?
[Table_1]

32.
MCQ 1 Marks
CH8 - ELECTRICITY

Two $10\, \Omega$ resistors are connected in series and then in parallel.
What is the combined resistance in each case?
[Table_1]

33.
MCQ 1 Marks
CH10 - ELECTRON AND ELECTRONICS

The information on the back of a television is shown.



Which fuse provides the best protection for the circuit?

34.
MCQ 1 Marks
CH9 - MAGNETS AND CURRENTS

A solenoid is connected to a very sensitive ammeter. A rod is inserted into one end of the solenoid. The ammeter shows that there is a small electric current in the solenoid while the rod is moving.

Which rod is being inserted?

35.
MCQ 1 Marks
CH9 - MAGNETS AND CURRENTS

The diagram shows a transformer.

What is the output voltage?

36.
MCQ 1 Marks
CH9 - MAGNETS AND CURRENTS

The diagram shows a d.c. motor.
Which two changes together will always make the coil spin more slowly?

37.
MCQ 1 Marks
CH10 - ELECTRON AND ELECTRONICS

The charge on a proton is e.
What is the charge on an electron and what is the charge on a neutron?
[Table_1]

38.
MCQ 1 Marks
CH11 - ATOMS AND RADIOACTIVITY

The proton numbers and nucleon numbers of four nuclides are shown.

$$^{231}_{88}\text{Ra} \quad ^{232}_{90}\text{Th} \quad ^{238}_{92}\text{U} \quad ^{239}_{94}\text{Pu}$$

Which statement is correct?

39.
MCQ 1 Marks
CH11 - ATOMS AND RADIOACTIVITY

A radioactive atom decays by emission of a \(\beta\)-particle.
Which row is correct?
[Table_1]

40.
MCQ 1 Marks
CH11 - ATOMS AND RADIOACTIVITY

The graph shows the activity of a radioactive source over a period of time.
What is the half-life of the source?