IGCSE Physics (0972) — 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. Air resistance acts upward and weight acts downward. The ball does not reach…
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. Air resistance can be ignored. What is the acceleration of the…
Answer this question and get it marked →A car is driven round a bend in the road at a constant speed. The diagram shows the car and the direction of motion. What is the direction of the resultant force on the car when…
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 and tension are labelled. There is a third force at the hinge (not…
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 momentum…
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 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. Scale: distance between two lines = 40 J. Sound and thermal energy are the wasted outputs. What is the total wasted…
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 × 10⁶ 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. Results show mass decreasing from 33.9 g to 22.5 g. Why does the…
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. A temperature-time graph shows points 1, 2, 3, 4 where: 1 is where ice finishes melting, 2 is…
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 W (air–glass boundary) the angle in air is 45° and in glass is 28°. At X the ray exits the glass. At Y (glass–water…
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 waves pass through as flat plane waves with slight bending at…
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. The angle of incidence is i, the angle of refraction is r,…
Answer this question and get it marked →An object is placed 20 cm in front of a thin converging lens. A scale diagram shows the lens forms a real, inverted image. The scale indicates 5.0 cm between markings. Which row…
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. Positions A, B, C, D are marked at various distances from the magnet's end. In which position does a magnetic…
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? Four circuit diagrams A–D show different component combinations. A LDR and resistor in series B variable…
Answer this question and get it marked →In the circuit shown, resistor X has twice the resistance of resistor Y. They are connected in parallel. Which statement about the circuit is correct? A The current in the cell is…
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. The field lines point to the right. The rod is vertical (X at top, Y at bottom). In which…
Answer this question and get it marked →The diagram shows a basic electric motor with features labelled X, Y and Z. X is at the top of the coil, Y and Z are at the base where the commutator and brushes are. What are the…
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…
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