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AS · Topic 3

Forces and the laws of motion.

Newton's three laws, F = ma and the direction of acceleration, and momentum as the deeper formulation of the Second Law. Then the slow surrender to drag that ends in terminal velocity, and the conservation of momentum that governs every elastic and inelastic collision. Play the simulations below, then work through the gamified lessons, the Paper 1 practice and the concept map.

Simulations · live
Interactive · live Force, mass and acceleration Push on a mass and watch F = ma play out: pile on more mass for the same force and the acceleration shrinks. Loads only when you launch, so the page stays fast.
Interactive · live Terminal velocity and air resistance Drop an object and watch drag climb with speed until it balances weight and the acceleration falls to zero. Loads only when you launch, so the page stays fast.
Interactive · live Conservation of momentum Collide two trolleys and watch total momentum stay fixed, while kinetic energy survives elastic but not inelastic hits. Loads only when you launch, so the page stays fast.
Paper 1 practice · live
Multiple choice · with worked answers Paper 1 style multiple-choice questions A full topic set across Newton's laws, terminal velocity and the conservation of momentum, linking the lessons with worked answers. Open practice →
Lessons · live
Momentum and Newton's laws of motion → Non-uniform motion and terminal velocity → Linear momentum and its conservation →
Concept map
Open the concept map →