IGCSE Physics 0625 Paper 13, May/June 2024

A student wishes to find the volume of a small, irregularly shaped stone. A ruler and a measuring cylinder containing some water are available. Which apparatus is needed? A neither the ruler nor the measuring cylinder B the measuring cylinder only C the ruler and the measuring cylinder D the ruler only

A car travels along a road at a constant speed. What correctly describes the speed–time graph of the car? A a horizontal line B a vertical line C a diagonal line upwards D a curved line with increasing gradient

Four objects are moving along a straight line. The distance of each object from a fixed point on the line is plotted against time. Which object is decelerating? A [graph A] B [graph B] C [graph C] D [graph D]

An object is taken from the Earth to the Moon. The acceleration of free fall is $9.8{\text{ m/s}}^2$ on the Earth and is $1.6{\text{ m/s}}^2$ on the Moon. Which row describes the mass and the weight of the object on the Moon compared to on the Earth?

The diagram shows some liquid in a measuring cylinder. The mass of the liquid is $16\text{ g}$. What is the density of the liquid? A $0.80{\text{ g/cm}}^3$ B $1.3{\text{ g/cm}}^3$ C $36{\text{ g/cm}}^3$ D $320{\text{ g/cm}}^3$

A single force acts upon an object and the volume of the object does not change. Which statement is correct? A The density of the object changes. B The velocity of the object changes. C The mass of the object changes. D The weight of the object changes.

Four electric motors do the same quantity of work when they lift a weight of $10\text{ N}$ through the same distance. The times taken by each motor to lift the weight are shown. What is the time taken by the motor which produces the most power? A $1.5\text{ s}$ B $6.0\text{ s}$ C $15\text{ s}$ D $60\text{ s}$

Which row describes how the pressure beneath the surface of a liquid depends on the depth below the surface and on the density of the liquid?

In which process does a gas turn into a liquid? A boiling B condensing C freezing D melting

A pollen grain in a beaker of still water is viewed through a microscope. Which diagram shows the most likely movement of the pollen grain? A [diagram A] B [diagram B] C [diagram C] D [diagram D]

What is the relationship between temperatures in kelvin ($T$) and temperatures in degrees Celsius ($\theta$)? A $\theta =T+273$ B $\theta =T-273$ C $\theta =T+373$ D $\theta =T-373$

In a famous experiment, a scientist showed that, when water in an insulated tub is stirred, its temperature increases. What can be concluded from this experiment? A Temperature is a store of energy. B The water absorbs heat from the surroundings. C Work done by stirring increases the internal energy of the water. D Energy is not conserved.

Solids expand when heated and contract when cooled. In which example is there a useful application of expansion and not an unwanted effect? A bridges B railway lines C telephone cables D thermostats

A rod is made half of aluminium and half of glass. A pin is attached to each end of the rod by wax. The rod is heated at the centre. A pin falls off when the wax melts. Which statement is correct? A Pin P falls off first because aluminium is a better thermal conductor than glass. B Pin P falls off first because aluminium is a worse thermal conductor than glass. C Pin Q falls off first because glass is a better thermal conductor than aluminium. D Pin Q falls off first because glass is a worse thermal conductor than aluminium.

In countries where it is usually hot, houses are often painted white. What is the reason for this? A White surfaces are good reflectors of infrared radiation. B White surfaces are good conductors of infrared radiation. C White surfaces are good absorbers of infrared radiation. D White surfaces are good emitters of infrared radiation.

What is the name of the distance from one crest in a transverse wave to the next crest? A amplitude B period C wavefront D wavelength

Waves on the surface of water travel from deep water to shallow water. Which diagram shows the correct path of the waves in the shallow water? A [diagram A] B [diagram B] C [diagram C] D [diagram D]

The diagram shows a thin converging lens with principal focuses at ${\text{F}}_1$ and ${\text{F}}_2$. A small light source is placed at ${\text{F}}_1$. A beam of light from the source passes through the lens. Which statement correctly describes the beam of light emerging from the lens? A The beam converges to ${\text{F}}_2$. B The beam converges to a point to the right of ${\text{F}}_2$. C The beam diverges from a point to the left of ${\text{F}}_1$. D The beam travels parallel to the principal axis.

A student reads the following relationship in his physics book. $$i=r$$ What is the student reading about? A diffraction due to a gap B dispersion of light by a prism C reflection in a plane mirror D refraction as light enters glass

The table shows information about different colours of light.

Using the data, what is the frequency of orange light? A $4.0\times {10}^{14}\text{ Hz}$ B $5.0\times {10}^{14}\text{ Hz}$ C $6.0\times {10}^{14}\text{ Hz}$ D $7.0\times {10}^{14}\text{ Hz}$

The table gives the wavelengths of three electromagnetic waves.

Which row correctly identifies P, Q and R?

A healthy human ear is able to hear a range of frequencies. What is this approximate range? A $10\text{ Hz}$ to $1000\text{ Hz}$ B $20\text{ Hz}$ to $2000\text{ Hz}$ C $20\text{ Hz}$ to $20000\text{ Hz}$ D $200\text{ Hz}$ to $200000\text{ Hz}$

A student hits two wooden blocks together in front of a wall and calculates the speed of sound to be $340\text{ m/s}$. The time between the student hitting the blocks and hearing the echo is $0.59\text{ s}$. What is the distance between the student and the wall? A $100\text{ m}$ B $200\text{ m}$ C $290\text{ m}$ D $570\text{ m}$

The diagram shows part of the magnetic field between two bar magnets. Which statement about the ends of the magnets is correct? A X and Y are both N poles. B X and Y are both S poles. C X is an N pole and Y is an S pole. D X is an S pole and Y is an N pole.

Diagrams 1, 2 and 3 show an experiment to compare two magnets 1 and 2. Which row explains the readings on the balances?

Which graph of voltage against time shows an a.c. voltage? A [graph A] B [graph B] C [graph C] D [graph D]

There is a current $I$ in a resistor for a time $t$. The potential difference (p.d) across the resistor is $V$. What does the product $IVt$ represent? A the charge flowing through the resistor B the energy transferred by the resistor C the power dissipated by the resistor D the resistance of the resistor

A student designs a circuit to turn on a fan when the temperature increases. Which component does the student need to use in her circuit? A [lamp symbol] B [fuse symbol] C [LDR symbol] D [thermistor symbol]

Four statements about safety when designing electrical products are listed. 1 If the outer casing is a conductor, it should be earthed. 2 If the outer casing is a conductor, it should not be earthed. 3 If the outer casing is an insulator, it should be earthed. 4 If the outer casing is an insulator, it should not be earthed. Which statements are correct? A 1 and 3 B 1 and 4 C 2 and 3 D 2 and 4

A transformer has 400 turns on the primary coil connected to the $240\text{ V}$ mains supply. There are two secondary coils to serve different parts of a television. Secondary coil 1 has 2500 turns and secondary coil 2 has 20 turns. Which row is correct?

A class is designing a d.c. motor. To achieve a greater turning effect, three suggestions are made. 1 Have a larger current in the coil of the motor. 2 Have a stronger magnet in the motor. 3 Put a larger number of turns on the coil. Which suggestions will help to increase the turning effect? A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only

Which statement about the structure of an atom is correct? A It contains positively charged particles only. B It contains negatively charged particles only. C It contains no charged particles. D It contains positively charged particles and negatively charged particles.

A nuclide of strontium is represented by ${}_{38}^{90}\text{Sr}$. Which row gives the number and location of the electrons in an atom of ${}_{38}^{90}\text{Sr}$?

A radiation detector in a laboratory is measuring background radiation. Which row describes the readings and the cause?

The nuclei of the atoms in a substance are changing randomly and emitting radiation. What is happening to the substance? A It is undergoing electromagnetic induction. B It is undergoing magnetisation. C It is undergoing solidification. D It is undergoing radioactive decay.

What is the safest way to store a radioactive source? A in a lead-lined box in a metal cabinet B on a shelf away from other radioactive materials C in a glass bottle containing oil D in a fume cupboard

Which row explains the apparent daily motion of the Sun across the sky and the cycle of phases of the Moon?

The nearest star to the Sun is 4 light-years away. A spaceship travels at 0.1% of the speed of light. What is the total time taken for a journey from the Sun to the star and back again? A 400 years B 800 years C 4000 years D 8000 years

In which regions of the electromagnetic spectrum does the Sun radiate most of its energy? A microwave to infrared B ultraviolet to X-ray C infrared to ultraviolet D radio to infrared

What is the approximate diameter of the Milky Way? A 100 000 kilometres B 1 000 000 kilometres C 100 000 light-years D 1 000 000 light-years