IGCSE Physics (0625) — October–November 2024, Paper 21
40 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →A student uses a metre ruler to measure the length of a sheet of paper. Which measurement is shown to the nearest millimetre? A 0.2932 m B 0.293 m C 0.29 m D 0.3 m
Answer this question and get it marked →A rocket travels with an average speed of 6 km/s for 2 minutes. What is the distance travelled by the rocket? A 12 km B 50 km C 720 km D 12 000 km
Answer this question and get it marked →The diagram shows the vertical forces acting on a ball as it falls vertically through the air. The ball does not reach terminal velocity. Air resistance acts upward and weight…
Answer this question and get it marked →A coconut falls from a palm tree. At X, it has just started falling. Y is the point just before it hits the ground. What is the acceleration of the coconut at X? (Air resistance…
Answer this question and get it marked →A car is driven round a bend in the road at a constant speed. What is the direction of the resultant force on the car when it is going round the bend? A parallel to the motion and…
Answer this question and get it marked →The diagram shows a drawbridge attached to a wall by a hinge at one end and a cable at the other. The weight of the drawbridge and the tension in the cable are represented by the…
Answer this question and get it marked →Which equation gives the momentum change of an object? A momentum change = force / area B momentum change = force × distance C momentum change = force × (distance / time) D…
Answer this question and get it marked →Which statement about the use of nuclear fuel as an energy resource is correct? A It obtains its energy from the Sun. B It has no environmental impact. C Nuclear power stations do…
Answer this question and get it marked →The diagram shows an object of mass m being projected with speed v from a point P to a point Q on top of a cliff of height h. The object does work W against air resistance as it…
Answer this question and get it marked →The diagram shows a Sankey diagram for an electric drill. The energy input branches into useful kinetic energy and wasted sound and thermal energy. Scale: distance between two…
Answer this question and get it marked →An elephant of weight 45 000 N stands with all four feet on the floor. The average pressure on the floor due to the elephant foot in contact with it is 34 000 Pa. What is the area…
Answer this question and get it marked →Some air is trapped inside a metal container with a tightly fitting lid. The container is heated strongly behind a safety screen. The lid is blown off by the increased pressure of…
Answer this question and get it marked →A very hot mug of coffee is near a large unheated swimming pool holding 2.0 × 10⁵ kg of water. Which statement is correct? A If the mug of coffee is tipped in the pool, the coffee…
Answer this question and get it marked →A student measures the mass of water in an open container over two hours. The container is kept in a warm room. The results are in the table: time/hours, mass of water/g: 0.0,…
Answer this question and get it marked →A 1 kg block of aluminium requires more thermal energy to raise its temperature by 1 °C than a 1 kg block of copper requires. Why is this? A Aluminium is a better conductor of…
Answer this question and get it marked →A block of ice is at a temperature of −100 °C. Energy is supplied at a constant rate. The graph shows how its temperature changes, with points 1, 2, 3, 4 marked along the curve…
Answer this question and get it marked →Water waves are reflected at a plane surface. Which property of the waves is changed by the reflection? A direction of propagation B frequency C speed D wavelength
Answer this question and get it marked →A light ray is passed through air, glass and water. At the air-glass boundary (point W) the ray refracts from 45° to 28°; at the glass-water boundary it travels to point X; at the…
Answer this question and get it marked →Plane water waves approach a narrow gap in a barrier. Which diagram shows the diffraction pattern that would occur? A plane waves passing through gap emerging as nearly plane…
Answer this question and get it marked →A ray of light enters a transparent plastic wedge from air and is incident on the lower surface at the critical angle, as shown. The angle of incidence is i, the angle of…
Answer this question and get it marked →An object is placed 20 cm in front of a thin converging lens. The scale diagram shows how the lens forms a real, inverted image (scale: 5.0 cm). Which row gives the focal length…
Answer this question and get it marked →Radio waves are electromagnetic waves. What is the wavelength of a radio wave of frequency 2.0 × 10⁵ Hz? A 0.00067 m B 0.0015 m C 670 m D 1500 m
Answer this question and get it marked →A candle flame is placed in front of a loudspeaker. The loudspeaker produces a sound wave that causes air particles to vibrate. The vibrating air particles make the candle flame…
Answer this question and get it marked →The diagram shows part of the magnetic field around a strong magnet. Position A is just above the top edge near the pole, B is in a field-line region to the right, C is further…
Answer this question and get it marked →There is a current of 0.60 A in a closed circuit. How much charge passes a point in the circuit in 2.5 min? A 0.24 C B 1.5 C C 90 C D 5400 C
Answer this question and get it marked →Which two physical quantities have the unit J/C? A charge and energy B charge and potential difference (p.d.) C electromotive force (e.m.f.) and p.d. D e.m.f. and charge
Answer this question and get it marked →A copper wire is placed in an electrical circuit and its resistance is measured. The wire is then replaced with a second copper wire with twice the length and a quarter of the…
Answer this question and get it marked →Which circuit contains a diode connected in series with a fixed resistor? A a circuit with an LDR in series with a fixed resistor B a circuit with two variable resistors in series…
Answer this question and get it marked →In the circuit shown, resistor X has twice the resistance of resistor Y. X and Y are connected in parallel across a cell. Which statement about the circuit is correct? A The…
Answer this question and get it marked →A 4 Ω resistor and an 8 Ω resistor are connected in series with a power supply. A voltmeter connected across the 8 Ω resistor reads 36 V. What is the voltmeter reading when it is…
Answer this question and get it marked →A metal rod, XY, is placed in a magnetic field so that it is perpendicular to the field, as shown. The field lines point to the right (from left to right across the page). In…
Answer this question and get it marked →The diagram shows a basic electric motor: a rectangular coil between the poles of a magnet (N left, S right), labelled features X (the coil), Y and Z (at the connection/contacts)…
Answer this question and get it marked →Two transformers, P and Q, each have 2000 turns on their primary coils and 1000 turns on their secondary coils. Both transformers are 100% efficient. The secondary of transformer…
Answer this question and get it marked →α-particles are directed at a metal foil. Most of the particles pass through the foil with little change in direction. A small proportion of the particles are scattered back…
Answer this question and get it marked →Which statement correctly compares the properties of alpha-particles and beta-particles? A Alpha-particles are less penetrating than beta-particles because alpha-particles are…
Answer this question and get it marked →Which statement about alpha decay is correct? A The nucleus loses electrons. B The nucleus changes to that of a different element. C The nucleus does not decay until after one…
Answer this question and get it marked →An explosion in a nuclear reactor spreads the isotope caesium-137, ¹³⁷₅₅Cs, across a large area. After 90.0 years have passed, the quantity of caesium-137 present is 12.5% of its…
Answer this question and get it marked →Which type of object rotates around the Sun with an elliptical orbit? A planet B galaxy C red giant D moon
Answer this question and get it marked →Which statement about the Sun is correct? A The nuclear reactions in the Sun create mainly radio waves and microwaves. B The Sun is powered by fission reactions in which hydrogen…
Answer this question and get it marked →To determine the value of the Hubble constant, an astronomer measures the distance of a galaxy from the Earth as 2.5 × 10²¹ km. She also measures the speed of recession of the…
Answer this question and get it marked →← October–November 2024 Paper 22 · October–November 2024 Paper 13 →