The AQA A-level Physics Paper 3B (June 2022), Option C (Engineering Physics), focuses on rotational dynamics, energy efficiency, and thermodynamic systems. Key topics include angular velocity, torque, and power output in rotor systems, along with flywheel design for energy storage in trams. The paper explores adiabatic processes, compression ratios in diesel engines, and the coefficient of performance (COP) in thermoelectric cooling. Calculations involve angular impulse, minimum flywheel speed, and energy efficiency. Keywords: AQA Physics, engineering physics, rotational dynamics, torque, flywheel, diesel engine, thermoelectric cooling, COP, adiabatic process.