SECTION A: WORK, POWER AND ENERGYWorkUnit WorkSpecial CasesWork Done by the Force of GravityUnits of WorkDimensional Formula for WorkRelation between Joule and ErgPowerUnit of PowerDimensional Formula for PowerEnergyUnit of EnergyTypes of EnergyWork–Energy TheoremLaw of Conservation of EnergyConservation of Mechanical EnergyApplications of Law of Conservation of EnergyParallel ForcesMoment of a ForceUnit of Moment of ForceDimensional Formula of Moment of ForcePrinciple of Moments or Theorem of MomentsCouple ForceStatic EquilibriumCentre of GravityStable EquilibriumUnstable EquilibriumNeutral EquilibriumSECTION B: SIMPLE MACHINEPrinciple of Simple MachineMechanical AdvantageVelocity RatioEfficiency ()LeversPulleyWheel and AxleScrew JackInclined PlaneSECTION C: CIRCULAR MOTIONWhen a Body is Said to be in Circular MotionRelation among v, r and ωAngular MomentumPeriodCentripetal ForceCentrifugal ForceSimilarities between Centripetal Force and Centripetal AccelerationApplication of Centrifugal ForceCentrifugal ReactionPlanetary MotionFirst Law of KeplerSecond Law of KeplerThird Law of KeplerNewton’s Universal Law of GravitationDimensional Formula of GRelation between G and gMass and WeightMeasurement by Weight–Spring BalanceRocketsMulti-stage RocketsSatellitePrinciple of Orbiting SatelliteOrbital Velocity (v0)Escape Velocity (ve)Uses of Artificial SatellitesIndian Space Research Organisation (ISRO)Satellite ProgrammesLaunch vehiclesLunar ExplorationMars ExplorationISRO’s Contribution to Other FieldsPractice QuestionsAnswer KeysHints and Explanations