IGCSE Physics (0625) — May–June 2024, Paper 21
39 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →In which row are quantities correctly categorised into scalar quantities and vector quantities? A scalar: mass and energy; vector: weight and acceleration B scalar: gravitational…
Answer this question and get it marked →Which name is given to the quantity of matter in an object? A density B mass C volume D weight
Answer this question and get it marked →A body is moved from place X to place Y where the gravitational field strength is different. What happens to its mass and to its weight due to the move? A mass changes; weight…
Answer this question and get it marked →The mass of an object is 2.5 kg. The volume of the object is 480 cm³. What is the density of the object? A 5.2 × 10⁻³ g/cm³ B 5.2 g/cm³ C 190 g/cm³ D 1.2 × 10³ g/cm³
Answer this question and get it marked →Four objects each have two 1.0 N forces acting on them (diagrams A–D). Which object is in equilibrium? (The equilibrium object has two equal, opposite, collinear forces.) A object…
Answer this question and get it marked →A ball of mass m falls vertically and hits a hard surface with speed v1. It rebounds vertically upwards with speed v2. What is the change in momentum of the ball? A mv1 B mv2 C…
Answer this question and get it marked →A stone is dropped from a tall tower and falls a distance of 50 m to the ground. The stone has a mass of 3.0 kg. At which speed does the stone hit the ground? A 17 m/s B 31 m/s C…
Answer this question and get it marked →A coal-fired power station burns coal to boil water; the steam makes the generator move, producing electricity. Which row gives the name of the energy store in the coal and the…
Answer this question and get it marked →A man puts some ice into a glass of water on a warm day. After a short time the ice disappears and water droplets appear on the outside of the glass. Which two changes of state…
Answer this question and get it marked →Gas of volume 200 cm³ is trapped in a container by a piston. The piston is pushed so the volume decreases to 100 cm³. The temperature of the gas remains constant. Which row states…
Answer this question and get it marked →Which graph (A, B, C or D) shows the relationship between the pressure and volume of a fixed mass of gas at constant temperature? (The correct graph is the inverse-proportion…
Answer this question and get it marked →During evaporation of a liquid, the most energetic particles escape and the temperature of the remaining liquid changes. Which row identifies where these particles escape from and…
Answer this question and get it marked →Wet clothes are put out on a line to allow the water to evaporate. Which type of weather would cause the water to evaporate most quickly? A a cold day with no wind B a cold day…
Answer this question and get it marked →A solar water heater is designed to absorb energy from sunlight. Which surface texture and colour would be best for the solar water heater? A dull black B shiny black C dull white…
Answer this question and get it marked →Which statement about waves is correct? A Waves do not transfer either energy or matter. B Waves transfer both energy and matter. C Waves transfer energy without transferring…
Answer this question and get it marked →The angle of incidence of a ray of light incident on a plane mirror is gradually increased. To the nearest degree, what is the maximum possible angle between the incident and…
Answer this question and get it marked →Which conditions are necessary for light to be totally internally reflected? A incident light is in the less dense medium; angle of incidence less than the critical angle B…
Answer this question and get it marked →The diagram shows a ray of light passing from air into a transparent substance: angle of incidence 40.0° in air, angle of refraction 30.0° in the substance. What is the refractive…
Answer this question and get it marked →The diagram shows a ray of light in an optical fibre. Which statement correctly explains the condition for the maximum transmission of light by the optical fibre? A The glass must…
Answer this question and get it marked →Which region of the electromagnetic spectrum is used for detecting fake bank notes? A radio B microwaves C ultraviolet D X-rays
Answer this question and get it marked →A sound wave travels at 330 m/s. The distance between the centre of a compression and the centre of the nearest rarefaction is 2.5 cm. What is the frequency of the sound wave? A…
Answer this question and get it marked →Which waves are used in the medical scanning of soft tissue? A gamma rays B infrared C microwaves D ultrasound
Answer this question and get it marked →Which row describes suitable materials for use in a temporary magnet and in a permanent magnet? A temporary: soft iron; permanent: soft iron B temporary: soft iron; permanent:…
Answer this question and get it marked →A magnetic field is represented in the diagram by magnetic field lines, with points A, B, C and D. At which point is the magnetic field strongest? (Where the field lines are…
Answer this question and get it marked →A student determines the resistance of resistor R using a circuit with a voltmeter and an ammeter. Which circuit (A, B, C or D) does she use? (The voltmeter is in parallel with R…
Answer this question and get it marked →A diode and a resistor are connected across a variable d.c. supply. Terminal X is initially positive and at a maximum value. The p.d. across XY is adjusted as shown by the graph.…
Answer this question and get it marked →When a conductor in a complete circuit cuts across a magnetic field, a current is induced in the conductor. Which statement about the induced current is correct? A The induced…
Answer this question and get it marked →The diagram shows a solenoid carrying an electric current, with points X (inside the solenoid), Y (just outside one end) and Z (further away). Which row compares the magnetic…
Answer this question and get it marked →A conducting wire is placed between the poles of a magnet (N on the left, S on the right). When the current is in the direction shown, the force on the wire acts out of the page.…
Answer this question and get it marked →Which types of electric current are in the primary coil and the secondary coil of a step-up transformer? A primary a.c.; secondary a.c. B primary a.c.; secondary d.c. C primary…
Answer this question and get it marked →A scientist fires alpha-particles at a very thin sheet of gold and detects the particles that pass through. Which statement about the results of the scattering experiment is…
Answer this question and get it marked →The notation ¹⁹⁷₇₉Au represents the nucleus of a gold atom. The relative charge on a proton is +1. What is the relative charge on the gold nucleus? A +79 B +118 C +197 D +276
Answer this question and get it marked →An isotope of hydrogen has the nuclide notation ²₁H. How many neutrons are in the nucleus of this isotope and what is the relative charge on the nucleus? A 1 neutron; +1 B 1…
Answer this question and get it marked →A radioactive source is placed near a detector. The radiation arriving is measured for 10 minutes with different materials placed between source and detector: none 5626 counts;…
Answer this question and get it marked →The reading on a detector placed near a radioactive material is 536 counts per second. The background count rate is 44 counts per second. The half-life of the material is 34…
Answer this question and get it marked →A planet in the Solar System is at the point in its orbit where it is closest to the Sun. Which row is correct? A orbital speed at its maximum; energy in gravitational potential…
Answer this question and get it marked →What is the main process that powers the Sun? A burning of helium and oxygen B burning of hydrogen and oxygen C nuclear fusion of hydrogen to form helium D nuclear fission of…
Answer this question and get it marked →A galaxy is 3.0 × 10²⁰ km from the Earth. At which speed is the galaxy moving away from the Earth? A 660 km/s B 6600 km/s C 660 m/s D 6600 m/s
Answer this question and get it marked →An astronomer observes a distant galaxy. The table shows how the distance and the speed of recession of the galaxy are determined. Which row is correct? A distance: brightness of…
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