AS & A Level Physics (9702) — May–June 2025, Paper 21
7 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1a →Question 2a · 10 marks · Forces, density and pressure
State the principle of moments.
Answer this question and get it marked →Question 3a · 10 marks · Work, energy and power
Define power.
Answer this question and get it marked →Question 4a · 8 marks · Superposition
State the principle of superposition.
Answer this question and get it marked →Question 5a · 6 marks · Waves
Use the definitions of speed v, frequency f and wavelength λ to derive the wave equation v = fλ.
Answer this question and get it marked →Question 6a(i) · 9 marks · Electrical circuits
A nichrome wire X of length 45 cm and cross-sectional area 4.7 × 10⁻⁷ m² is connected into a circuit with a cell. The resistance of X is 1.1 Ω. The cell has electromotive force…
Answer this question and get it marked →Question 7a · 8 marks · Particle physics
Nitrogen-12 (¹²₇N) is an unstable isotope of nitrogen that decays by the emission of radiation to carbon-12 (¹²₆C). Complete the full nuclear equation for the decay, including all…
Answer this question and get it marked →