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Pearson IIT Foundation Physics Grade 9, 2026

Name: Pearson IIT Foundation Physics Grade 9, 2026
Author: Trishna Knowledge System
ISBN: 9789371365017

by Trishna Knowledge System

January 2026

Intermediate

520 pages

18h 2m

English

Pearson India

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Cover
About Pearson
Title Page
Copyright
Brief Contents
Contents
Preface
Chapter Insights
Bridge Course
UNIT I: BASIC PHYSICS

CHAPTER 1 UNITS AND MEASUREMENTS
Physical QuantityMeasurement of Physical Quantities and their UnitsTypes of Physical Quantity and its UnitRules for Writing UnitsSystems of UnitsDefinitions of UnitsDimensions of Physical QuantitiesMeasuring DevicesMetre ScaleVernier CallipersScrew GaugeMeasurement of MassPhysical BalanceMeasurement of Mass by a Common BalanceSpring BalanceMeasurement of TimeSimple PendulumPendulum ClockStop WatchMeasurement of VolumeVolume of LiquidsDetermine the Volume of Irregular SolidsMeasurement of DensityDetermination of the Density of SolidsDetermination of the Density of Liquids Using a Specific Gravity BottleDetermination of the Density of AirGraphUses of Straight Line GraphScientific NotationErrors and AccuracyEffect of Combining ErrorsSignificant FiguresRules for Determining Significant FiguresRounding off the DigitsPractice QuestionsAnswer KeysHints and Explanations
UNIT II: MECHANICS
CHAPTER 2 KINEMATICS
MotionTypes of MotionScalars and VectorsDisplacementSpeedAverage SpeedUniform SpeedVariable SpeedVelocityUniform VelocityVariable VelocityInstantaneous VelocityAverage VelocityAccelerationUniform AccelerationEquation of MotionSign ConventionAcceleration Due to Gravity Time of DescentTime of Flight (tf)Velocity on Reaching the GroundUniform Circular MotionGraphical Representation of Motion Along a Straight LineDisplacement—Time GraphsVelocity—Time GraphAcceleration–Time GraphGraphical Method—SolutionsPractice QuestionsAnswer KeysHints and Explanations
CHAPTER 3 DYNAMICS
SECTION A: LAWS OF MOTIONForce in NatureEffects of ForcesContact ForceNon-contact ForceRigid BodyMomentum (p)Units of MomentumExternal ForceBalanced External ForceUnbalanced External ForceNewton’s Laws of Motion—Observations of GalileoNewton’s First Law of MotionInertiaMass and InertiaNewton’s Second Law of MotionDerivation of F = maUnits of ForceDimensional Formula of ForceImpulsive Force and ImpulseMass and WeightMassWeightNewton’s Third Law of MotionApplications of Newton’s Third Law of MotionLaw of Conservation of MomentumNormal ForceNormal Reaction on a Body Placed on an Inclined SurfaceNormal Reaction Under the Action of an Applied ForceFrictionTypes of FrictionFriction in FluidsAdvantages of FrictionDisadvantages of FrictionMethods to Reduce FrictionSECTION B: WORK, ENERGY AND POWERWorkUnits of WorkDimensional Formula of WorkPowerUnit of PowerDimensional Formula of PowerEnergyExamples of EnergyUnits of EnergyMechanical EnergyPotential EnergyHooke’s LawDerivation of Expression for Elastic Potential EnergyKinetic EnergyDerivation of Expression for Kinetic EnergyWork Energy TheoremRelation between Kinetic Energy and MomentumLaw of Conservation of Energy Verification of the Law of Conservation of Energy in the Case of a Freely Falling BodyLaw of Conservation of Energy in the Case of a Simple PendulumTransformation of EnergySources of EnergyFossil FuelsSome other Types of EnergyEnergy CrisisGreenhouse Effect and Global WarmingGreenhouse EffectGlobal WarmingSECTION C: ROTATIONAL MOTION AND CIRCULAR MOTIONRotational MotionRigid BodyTypes of Motion of a Rigid BodyMovement of Axis of Rotation of a Spinning Top (Precession)Center of MassCenter of Mass of a Two-Particle SystemCircular MotionExamples of Circular MotionUniform Circular MotionPeriodic MotionOscillatory Motion (Vibratory Motion)Simple Harmonic Motion (SHM)Simple PendulumPractice QuestionsAnswer KeysHints and Explanations
CHAPTER 4 GRAVITATION
Kepler’s Laws of Planetary MotionNewton’s Law of GravitationInverse Square Law—Its DeductionMass and WeightCenter of MassRelation between G and gFactors Affecting Acceleration Due to GravityFree FallWeightlessnessCenter of GravityCenter of Gravity of Regular BodiesCenter of Gravity of Irregular BodiesEquilibriumTypes of EquilibriumApplications of GravitationSatellitesPractice QuestionsAnswer KeysHints and Explanations
CHAPTER 5 FLUID MECHANICS
Differences between Liquids and GasesThrustPressure Fluid PressureAtmospheric PressureFortin’s Barometer Aneroid BarometerManometerBoyle’s LawPascal’s Law—Transmission of Fluid PressureBramah PressHydraulic PressHydraulic BrakesUpthrust or Buoyant Force Upthrust Archimedes’ PrincipleArchimedes’ Principle—VerificationDensityRelative DensityFloatationLaws of FloatationCharacteristics of a Floating BodyFloating Body—It’s Relative DensityMeta-centre and Equilibrium of Floating BodiesApplications of Laws of FloatationHydrometerCommon HydrometerHydrometer—Its Calibration LactometerAcid Battery HydrometerViscositySurface TensionCapillarityPractice QuestionsAnswer KeysHints and Explanations
UNIT III: WAVES AND SOUND
CHAPTER 6 WAVE MOTION AND SOUND
Periodic Motion of ParticlesGraphical Representation of Simple Harmonic MotionWave MotionPhaseTransmission of EnergyClassification of WavesLongitudinal WaveTransverse WaveSoundExperiment to Prove that Sound Requires a Medium for PropagationFrequencyTransmission of SoundVelocity of SoundDoppler EffectMach Number and Sonic BoomVibrationsNatural VibrationsForced OscillationsReflection of Sound Waves to Form Stationary WavesReflection at Rigid (Denser) EndReflection at Rarer BoundaryOrgan PipeStationary Waves in an Open End PipeStationary Waves Formed in Closed End Organ PipeFormation of Stationary Waves Along a Stretched StringFundamental NoteFirst Overtone or Second HarmonicThird Harmonic or Second OvertoneLaws of Vibrations of a Stretched StringSonometerLaw of LengthLaw of TensionLaw of MassReflection of SoundPractical Applications of Reflection of SoundRecording and Reproduction of SoundHuman EarPractice QuestionsAnswer KeysHints and Explanations
UNIT IV: THERMODYNAMICS
CHAPTER 7 THERMODYNAMICS-I
HeatHeat as a Form of EnergyTemperatureThermal EquilibriumMeasurement of TemperatureThermal Expansion of SolidsCoefficient of Linear ExpansionCoefficient of Superficial ExpansionCoefficient of Cubical ExpansionDerivation of the Relation among α, β, and γApplications of Expansion of SolidsExpansion of LiquidsReal and Apparent Expansions of a LiquidDefinition of γa and γrAnomalous Expansion of WaterHope’s ExperimentConsequences of Anomalous Expansion of WaterExpansion of GasesAir ThermometerKinetic Theory of GasesMolecular Motion and TemperatureAbsolute ZeroThe Gas LawsBoyle’s LawCharles’ LawGay Lussac’s Law or Pressure LawGas EquationCalorimetryMechanical Equivalent of HeatCalorimeterSpecific HeatJoule’s ExperimentThermal CapacityWater EquivalentChange of StateMelting of a SubstanceEvaporationLatent HeatHumidityCalorific Value of a FuelBomb CalorimeterThermal Efficiency of a Heating DeviceTransmission of HeatConductionConvectionRadiationComparison between Conduction, Convection, and RadiationHeat EnginesTypes of Heat EnginesPetrol EngineDiesel EnginePractice QuestionsAnswer KeysHints and Explanations
UNIT V: ELECTRICITY AND MAGNETISM
CHAPTER 8 ELECTRICITY-I
Electric ChargesProperties of ChargesConductors and InsulatorsCharging a ConductorDetection of Charge on a BodyElectroscopeBiot’s ExperimentFaraday’s ExperimentAtmospheric ElectricityCoulomb’s LawElectric Field and Electric Field StrengthElectric PotentialCapacitance and CapacitorsUses of CapacitorsElectric CurrentElectric CellElectro Motive Force (EMF)Ohm’s LawElectrical ResistanceCombinations of the ResistorsElectric Circuits and Circuit DiagramsOpen Circuit Closed CircuitPractice QuestionsAnswer KeysHints and Explanations
CHAPTER 9 MAGNETISM-I
MagnetProperties of MagnetsArtificial MagnetsBar MagnetMethods of MagnetizationMethods of DemagnetizationMagnetic InductionClassification of SubstancesEwing’s Molecular Theory of MagnetismMagnetic FieldProperties of Lines of ForcePatterns of Lines of ForceTerrestrial MagnetismMagnetic Field Due to a Bar Magnet in the Earth’s Magnetic FieldMagnetic Effect of ElectricityOersted’s ExperimentElectromagnetic Field—Its DirectionMagnetic Field Due to Current in a Straight ConductorMagnetic Field Around a Circular Conductor (Coil)GalvanoscopeInstruments Using Magnetic Effect of Electric CurrentSolenoidElectromagnetMagnetic CraneAn Electric BellElectromagnetic RelayPractice QuestionsAnswer KeysHints and Explanations
UNIT VI: LIGHT
CHAPTER 10 LIGHT
LightSource of LightRectilinear Propagation of LightShadowFormation of a Shadow by a Point SourceFormation of Shadows Using an Extended SourceReflection of LightLaws of ReflectionMirrorVerification of the Laws of ReflectionFormation of Images by Two MirrorsMinimum Length of a Plane Mirror Required to View Full ImageUses of Plane MirrorsReflecting PeriscopeSpherical MirrorsRelation between Focal Length and Radius of CurvatureRules for the Construction of Ray DiagramsGeometrical Construction of the Formation of an Image Formation of Images by a Concave MirrorFormation of Images by a Convex MirrorCartesian Sign ConventionRelation Between Object Distance, Image Distance and Focal Length of a Spherical Mirror: Mirror FormulaMagnificationUses of Spherical MirrorsDetermine the Focal Length of a Concave MirrorPractice QuestionsAnswer KeysHints and Explanations
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Content preview from Pearson IIT Foundation Physics Grade 9, 2026

After completing this chapter, you should be able to:

Apply the principle of rectilinear propagation of light like the formation of shadow, working of pinhole camera.
Understand the reflection of light by plane mirror and spherical mirrors in detail.

Before beginning this chapter, you should be able to:

Define different terms related to the study of light, Reflection of light by plane mirror and spherical mirrors.
Review the phenomenon of bending of light rays and their applications.
Understand splitting of white light into its constituent colours.

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A Tribute to Thomas Young (1773 – 1829)

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