9702/22 · May/June 2023

Pressure, SI base units of a constant, and percentage uncertainty.

Centre of gravity and moments, then energy and projectile motion.

Force as rate of change of momentum, resistive forces, work and power.

Hooke’s law, spring constant from a graph, and elastic potential energy.

Wave types, stationary waves in a closed tube, and polarisation.

Filament lamp resistance, and current in terms of drift velocity.

Potential divider with an LDR, and a null method with a resistance wire.

Isotopes, β⁻ decay, quark changes and hadron charge.