Cambridge IGCSE Physics - 0625 - Supplement Paper 2 2024 Winter Zone 3

Which list contains only vector quantities?

The graph shows how the velocity of an elevator varies with time. The elevator starts from the third floor of a tall building. Point P indicates the start of the elevator's journey.

When is the elevator on the third floor again?

An object of mass 1.0 kg is at rest on the Earth. An identical object is at rest on a planet with a gravitational field strength of twice that on the Earth. Which row correctly compares the object on the planet to the object on the Earth? [Table_1].

An engineer researched the density of different liquids being used as coolants. [Table_1] None of the liquids mix with water. Each liquid is poured, in turn, into a container of water. The density of water is 1000 kg/m^3. Which liquids rise to the surface?

The diagram shows a car moving along a road. The force due to the engine is 1500 N and the total drag force is 200 N. What is the motion of the car?

A pair of cutters is used to cut a rope. Where should the rope be positioned and at which labelled points should the hands be positioned to produce the greatest cutting force? Refer to the diagram .

An object has a mass of 20 kg.
Its velocity changes from 6 m/s to 10 m/s.
Which impulse has acted on the object?

Useful energy is obtained from different energy resources. Four examples of energy resources are listed. • water waves • geothermal • wind • water behind hydroelectric dams How many of these energy resources depend on radiation from the Sun?

A box of mass 2.0 kg slides down a slope. The gravitational field strength is 9.8 N/kg. What is the decrease in the gravitational potential energy stored as the box moves from P to Q?

The diagram shows the path of a long-jumper. Point R, where she lands, is on the same horizontal level as point P, from where she takes off. The long-jumper experiences air resistance as she runs and jumps.
Which graph shows how the store of kinetic energy and the store of gravitational potential energy of the long-jumper vary with time between points P and R?

Four tanks contain water to the depths shown. At the bottom of which tank is the pressure due to the water greatest?

A gas is heated in a sealed container. The volume of the container does not change. What happens to the particles of the gas?

Air in a sealed syringe is slowly compressed by moving the piston. The temperature of the air stays the same. Which statement about the air is correct?

Which statement about the evaporation of a liquid is correct?

A solid is heated causing it to expand. Which effect does this have on its mass and on its density? [Table_1]

A glass test-tube containing water is heated at the top. The water at the top boils, but the water at the bottom remains cold. Which row explains why the water at the bottom of the test-tube remains cold? [Table_1]

A vertical stick is dipped up and down in water at P.
In two seconds, three wave crests spread out on the surface of the water.

Which statement is correct?

Seismic waves from the epicentre of an earthquake take 100 s to reach a point 300 km away. When they arrive, they cause the ground to vibrate with a frequency of 2.0 Hz. What is the wavelength of these seismic waves?

Which diagram illustrates diffraction of water waves?

A single ray of light is reflected by two mirrors.

The diagram shows the ray of light incident on mirror 1.



What is the angle of reflection in mirror 2?

Which diagram shows the effect of a converging lens on a parallel beam of light?

Which three regions of the electromagnetic spectrum are used in the applications listed? • sterilising water • optical fibres • satellite television signals • mobile (cell) phones

A man stands 110m from a high wall. He makes a short, sharp sound and then hears an echo from the wall.
The speed of sound in air is 330 m/s.
How long after making the sound does the man hear the echo?

The diagram shows the magnetic field of a bar magnet.

How does the strength of the magnetic field vary with position along the dotted path PRQ?

The diagram shows a charged sphere and the direction of the electric field at point X due to the sphere.
An electron is placed at point Y.
Which diagram shows the direction of the force acting on the electron due to the charged sphere?

A battery moves 3.0C of charge round a complete circuit. The battery transfers 12J of energy during this process. What is the electromotive force (e.m.f.) of the cell?

A cylinder of conducting putty has length $l$, diameter $d$ and resistance $R$. The putty is now moulded into a cylinder of diameter $2d$ that has the same volume.

By which factor does the resistance of the putty cylinder decrease?

Which statement describes how a diode operates in an electrical circuit?

A number of identical resistors of resistance 10\(\Omega\) are arranged in circuits.
Which arrangement of resistors will give an overall resistance of 25\(\Omega\)?

The circuit diagram shows a thermistor in a potential divider. Two voltmeters X and Y are connected in the circuit. When the temperature of the thermistor increases, its resistance decreases. As the thermistor becomes warmer, what happens to the reading on each voltmeter?

In an experiment, strong magnetic fields provide a force that keeps charged particles moving with a horizontal circular motion.
Positive particles are accelerated clockwise when viewed from above as shown.

In which direction is the magnetic field?

When there is a current in a solenoid, a magnetic field is formed around it.
How does the magnetic field change if the current is increased?
[Table_1]

The diagram shows the structure of a simple transformer. Which row shows the correct conditions for the efficiency of the transformer to be as high as possible?

The products of the decay of a nucleus of a radioactive isotope are a nucleus and radiation which is emitted. What is the nature of the products?

An atomic nucleus decays by one or more radioactive decay processes. What causes the proton number to \textbf{decrease} by 1?

Which definition of half-life is \textbf{not} correct?

The diagram shows a system to control the thickness of paper produced by a machine. The graph shows how the count rate at the detector varies with the thickness of the paper. The rollers squeeze the paper when the count rate at the detector drops below 12 counts per second and then stop squeezing when the count rate rises above 13 counts per second. What is the thickness of the paper coming out of the machine?

The table gives the orbital durations of planets in the Solar System. [Table_1] What is the orbital duration of Mars?

Which reaction produces the energy that powers the Sun?

The diameter of the Milky Way is approximately 100,000 light years. What is this distance in metres?