Edexcel•A-Level•Physics
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Mechanics
Motion, forces, momentum, work, energy and power
Practice 58 subtopics in Mechanics. All questions match the Edexcel A-Level specification.
About Mechanics
Mechanics is a key topic in the Edexcel A-Level Physicsspecification. This topic covers motion, forces, momentum, work, energy and power.
Master all 58 subtopics below with unlimited AI-generated questions. Each subtopic page includes sample questions and the ability to generate unlimited practice questions with detailed solutions.
All Subtopics (58)
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Distance and displacementSpeed and velocityAcceleration as rate of change of velocityDisplacement-time graphsVelocity-time graphsGradient and area under motion graphsSUVAT equations of motionv = u + ats = ut + ½at²s = ½(u + v)tv² = u² + 2ass = vt - ½at²Free fall motionAcceleration due to gravity g = 9.81 m/s²Core practical: Measuring g by free fallIndependence of horizontal and vertical motionHorizontal component: constant velocityVertical component: constant accelerationResolving initial velocityTime of flight calculationsMaximum height calculationsRange calculationsTrajectory analysisCore practical: Projectile motion investigationNewton's first law of motionNewton's second law: F = maNewton's third law: action-reaction pairsFree body force diagramsWeight and gravitational field strengthNormal contact forceFriction forcesTension in stringsResolving forces into componentsForces in equilibriumMoments and torqueMoment = force × perpendicular distancePrinciple of momentsCentre of mass and centre of gravityConditions for equilibriumCouples and torqueMomentum = mass × velocityConservation of linear momentumElastic and inelastic collisionsPerfectly inelastic collisionsExplosions and recoilNewton's second law as F = Δp/ΔtImpulse = FΔt = ΔpForce-time graphsArea under F-t graph as impulseWork done = force × displacementWork done at an angle: W = Fs cos θKinetic energy: Ek = ½mv²Gravitational potential energy: Ep = mghConservation of mechanical energyEnergy transfers and dissipationPower = work done / timePower = force × velocityEfficiency calculations
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