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LearnCambridge97092026–2027Paper 4
Paper 4

Mechanics

Forces and equilibrium

Forces, components and resultants · Equilibrium of a particle · Friction · Inclined planes4 subtopic lessons

Kinematics of motion in a straight line

Constant acceleration (suvat) · Vertical motion under gravity · Motion graphs · Variable acceleration4 subtopic lessons

Momentum

Momentum and its conservation · Coalescing and loss of kinetic energy · Directions, rebounds and several collisions3 subtopic lessons

Newton's laws of motion

Newton’s laws and F = ma · Motion on inclined planes · Connected particles and pulleys · Lifts and vertical motion4 subtopic lessons

Energy, work and power

Work done · Kinetic and potential energy · The work–energy principle · Power4 subtopic lessons