IGCSE Physics (0625) — May–June 2023, Paper 43
10 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Fig. 1.1 shows a balloon filled with helium gas. The mass of the balloon is 120 kg. Calculate the weight of the balloon. Show your working.
Answer this question and get it marked →State which state of matter, solid, liquid or gas, has the greatest thermal expansion and which has the least.
Answer this question and get it marked →Fig. 4.1 is an incomplete ray diagram showing an object O, a converging lens and the principal axis. The focal points of the lens are each labelled F. The object O is placed…
Answer this question and get it marked →Two types of electromagnetic radiation are used in glass optical fibres for high-speed broadband. State the type of electromagnetic radiation, other than visible light, which is…
Answer this question and get it marked →An electric heater uses a resistance wire of resistance 26 Ω. The power dissipated in the resistance wire is 2500 W. Calculate the current in the resistance wire.
Answer this question and get it marked →The voltage across the primary coil of a 100% efficient transformer is 220 V and the voltage across the secondary coil is 12 V. The current in the secondary coil is 2.5 A.…
Answer this question and get it marked →During β-decay, one of the neutrons in the nucleus changes. State what happens to this neutron.
Answer this question and get it marked →Fig. 9.1 shows the Sun (central dot) and the planets Saturn, Jupiter and Earth labelled S0, J0 and E0. The planets orbit the Sun anticlockwise; from the Earth's orbit the planets…
Answer this question and get it marked →Show that 1 light-year = 9.5 × 10¹⁵ m.
Answer this question and get it marked →