IGCSE Physics 0625 Paper 11, May/June 2025

The diagram shows a measuring cylinder containing liquid. What is the volume of liquid in the measuring cylinder? A 13.0 cm${}^3$ B 13.5 cm${}^3$ C 16.0 cm${}^3$ D 17.0 cm${}^3$

Which statement about the speed and velocity of an object is correct? A The speed and velocity of an object are always greater than zero. B The speed of an object is always greater than its velocity. C The velocity of an object is equal to its speed in a given direction. D Speed can be measured in m / s but velocity can only be measured in km / h.

The table shows a student's times in three races.

What is the order of the student's average speeds in each race, from lowest to highest? A $1\to 2\to 3$ B $1\to 3\to 2$ C $2\to 1\to 3$ D $3\to 1\to 2$

Which row gives the correct weight for the mass shown when it is at the Earth's surface?

The masses and volumes of four objects are shown. Which object floats in a liquid of density $1.4{\text{ g / cm}}^3$?

A car is driven from rest on a long straight road. The car engine exerts a constant driving force. The diagram shows the horizontal forces acting on the car. The resistive forces are proportional to the speed of the car. Why does the car eventually reach a maximum speed? A The resistive forces decrease to make the acceleration of the car negative. B The resistive forces decrease to make the acceleration of the car zero. C The resistive forces increase to make the acceleration of the car negative. D The resistive forces increase to make the acceleration of the car zero.

A mattress placed on a bed contains many compression springs. Which energy store of the mattress increases when a person lies on the bed? A gravitational potential B chemical C elastic D kinetic

Which energy resource does not contain a store of chemical energy? A biofuel B coal C nuclear fuel D oil

A person carries 20 tiles from the ground to the roof of a house. Each tile has a mass of $1.2\text{ kg}$. The roof of the house is $15\text{ m}$ above the ground. How much work does the person do against gravity on the tiles in carrying them to the roof? A 37 J B 180 J C 360 J D 3500 J

Which pair of changes, applied at the same time, always increases the pressure that a brick exerts on the ground?

Two different pure substances, X and Y, are heated. Both substance X and substance Y are initially in the solid state. The graph shows how the temperature of each substance changes with time. What does the graph tell us about the substances? A Substance X has a lower boiling point than substance Y. B Substance X has a lower melting point than substance Y. C Substance Y has a lower boiling point than substance X. D Substance Y has a lower melting point than substance X.

A liquid substance changes into a gas. Which property of the substance remains the same? A ability to flow B compressibility C shape D volume

At room temperature, iron is difficult to compress. At the same temperature, oxygen is much easier to compress. Which comparison of the particles in iron and the particles in oxygen explains this? A The iron particles are closer together. B The iron particles have a greater mass. C The iron particles can be magnetised. D The iron particles have less average kinetic energy.

A teacher has a gas in a sealed syringe with a movable plunger. The teacher slowly moves the plunger out of the syringe. The temperature of the gas remains constant. Which row explains what happens to the pressure of the gas in the syringe?

Evaporation occurs from the surface of a pool of water. Which statement describes this change of state? A Electrons move from the liquid and become a gas. B Molecules that move from the liquid have the same energy as the molecules that stay in the liquid. C The more-energetic molecules escape the liquid. D The more-energetic molecules remain in the liquid.

Students test four rods of different materials, W, X, Y and Z, to compare how well the materials conduct thermal energy. The rods are all the same size and shape. The students use wax to stick a pin to one end of the first rod. The wax melts when it is warm. The other end of the rod is heated and the time taken for the pin to fall is recorded. The experiment is repeated for each rod. The students plot a chart of the time taken for each pin to fall. Which statement is correct? A X is a better thermal conductor than Y. B Y is a better thermal conductor than W. C Z is a better thermal conductor than W. D Z is a better thermal conductor than X.

A student has four metal containers filled with the same volume of water at a temperature of ${80}^{\circ }\text{C}$. The metal containers are put in a room at a temperature of ${20}^{\circ }\text{C}$. The metal containers are identical except for the texture and colour of their surfaces. Which surface will emit energy at the greatest rate? A dull black B shiny black C dull white D shiny white

A water wave has a speed of $2.0\text{ m / s}$. 4.0 complete waves pass a point every 10 seconds. What is the wavelength of the wave? A 0.50 m B 0.80 m C 5.0 m D 8.0 m

Which row correctly describes the vibrations of a transverse wave and also gives a correct example of a transverse wave?

The diagram shows a view from above of waves on the surface of a pond after the water has been disturbed at point P. What are the correct labels for X and Y?

The diagram shows the image of a clock as seen by a person standing in front of a plane mirror. What is the actual time? A 4:15 B 4:45 C 7:15 D 7:45

The diagram shows a ray of light incident on the surface of a glass block. The ray of light is partially reflected back into the air and partially refracted into the glass block. Which row correctly identifies the angle of reflection and the angle of refraction?

The amplitude and the frequency of a sound wave both increase. What happens to the loudness and what happens to the pitch of the sound?

Which statements about sound and ultrasound are correct?

Which row describes the magnetic properties of soft iron and steel?

Two charged rods, X and Y, are brought, in turn, near to a negatively charged rod. X is attracted by the negatively charged rod, and Y is repelled. What are the charges on X and Y?

The table gives data for four different electrical devices. Which device develops the greatest power?

A mains-operated radio is a double-insulated appliance. Which statement is correct? A The radio does not need a neutral connection. B The radio must be earthed. C The radio circuit is safe without a fuse or trip switch. D The outer casing of the radio cannot become live.

Which statement describes a magnetic field? A It is a region where all objects experience a force. B It is a region where all electric charges experience a force. C It is a region where all magnetic poles experience a force. D It is a region where all metals experience a force.

A plastic rod is charged by friction. The plastic rod becomes positively charged. Which particles are transferred in this process? A atoms B electrons C protons D neutrons

A teacher makes a circuit using three $1.5\text{ V}$ cells and two $20\mathrm{\Omega }$ resistors connected in series. Which row gives the combined electromotive force (e.m.f.) of the cells and the combined resistance of the resistors?

A student investigates the turning effect on a current-carrying coil placed in a magnetic field. The student changes the current in the coil and the number of turns on the coil. Which two changes together must increase the turning effect? A decreasing the current and decreasing the number of turns B decreasing the current and increasing the number of turns C increasing the current and decreasing the number of turns D increasing the current and increasing the number of turns

There is a current of $3.0\text{ A}$ in a conductor. The current is changed to $6.0\text{ A}$ in the opposite direction. Which effect does this have on the magnetic field around the conductor? A It decreases and it acts in the opposite direction. B It decreases and it acts in the same direction. C It increases and it acts in the opposite direction. D It increases and it acts in the same direction.

The table shows the contribution to background radiation from the four most common sources.

Which percentage of background radiation comes from all other sources? A 14% B 18% C 21% D 82%

The unstable nucleus of an element undergoes radioactive decay. The proton number remains unchanged. Which description of this radioactive decay event is correct? A The nucleus emits an $\alpha$-particle. B The nucleus emits a $\beta$-particle. C The nucleus emits $\gamma$-radiation. D The nucleus emits an $\alpha$-particle, a $\beta$-particle and $\gamma$-radiation together.

When they lose electrons, ......1...... form ......2...... charged ......3...... . Which words correctly complete the sentence?

An isotope of krypton has an atomic number of 36 and a mass number of 78. What is the number of protons in a krypton nucleus? A 36 B 42 C 78 D 114

What is the time taken for the Earth to spin once on its axis and the time taken for the Earth to orbit the Sun?

Electromagnetic radiation from distant galaxies is redshifted when observed from the Earth. This is evidence that supports the Big Bang Theory. Which statement is correct? A Light from galaxies that are moving towards the Earth is redshifted. B Redshift is an increase in the wavelength of electromagnetic radiation. C The Big Bang Theory says that the Solar System is expanding out into the Universe. D The Big Bang Theory says that, billions of years ago, the Universe expanded to its current size in a few seconds.

Which statement about the Milky Way is correct? A It is a galaxy made up of billions of stars. B It is a group of galaxies in our Solar System. C It is all the stars that we can see in the night sky. D It is the path taken by a comet when it gets close to the Sun.