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Past paper and exam-style questions organised by topic, with student-friendly answers written by teachers and examiners.
Kinematics
Distance & Displacement, Speed & Velocity, Acceleration, Kinematic Equations, Motion Graphs, Projectile Motion, Fluid Resistance, Terminal Speed
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Forces & Momentum
Free-Body Diagrams, Newton’s First Law, Newton’s Second Law, Newton’s Third Law, Contact Forces, Non-Contact Forces, Frictional Forces, Hooke's Law, Stoke's Law, Buoyancy, Conservation of Linear Momentum, Impulse & Momentum, Force & Momentum, Collisions & Explosions in One-Dimension, Collisions & Explosions in Two-Dimensions, Angular Velocity, Centripetal Force, Centripetal Acceleration, Non-Uniform Circular Motion
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Work, Energy & Power
Principle of Conservation of Energy, Sankey Diagrams, Work Done, Kinetic Energy, Gravitational Potential Energy, Elastic Potential Energy, Conservation of Mechanical Energy, Energy & Power, Efficiency Formula, Energy Density
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Rigid Body Mechanics
Torque & Couples, Rotational Equilibrium, Angular Displacement, Velocity & Acceleration, Angular Acceleration Formula, Moment of Inertia, Newton’s Second Law for Rotation, Angular Momentum, Angular Impulse, Rotational Kinetic Energy
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Galilean & Special Relativity
Reference Frames, Galilean Relativity, Postulates of Special Relativity, Lorentz Transformations, Velocity Addition Transformations, Space-Time Interval, Time Dilation, Length Contraction, Simultaneity in Special Relativity, Space-Time Diagrams, Muon Lifetime Experiment
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Thermal Energy Transfers
Solids, Liquids & Gases, Density, Temperature Scales, Temperature & Kinetic Energy, Internal Energy, Thermal Equilibrium, Changes of State, Specific Heat Capacity, Specific Latent Heat, Thermal Conduction, Thermal Convection, Thermal Radiation, Apparent Brightness & Luminosity, Stefan-Boltzmann Law, Wien’s Displacement Law
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Greenhouse Effect
Albedo & Emissivity, The Solar Constant, Greenhouse Gases, The Greenhouse Effect, Energy Balance Problems
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Gas Laws
Gas Pressure, Amount of Substance, Gas Laws, Ideal Gas Equation, Kinetic Theory of Gases, Derivation of the Kinetic Theory of Gases Equation, Average Kinetic Energy of a Molecule
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Thermodynamics
Thermodynamic Systems, First Law of Thermodynamics, Entropy, Calculating Changes in Entropy, Second Law of Thermodynamics, Thermodynamic Processes, Heat Engines, The Carnot Cycle
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Current & Circuits
Circuit Diagrams, Electric Current, Electric Potential Difference, Electrical Conductors & Insulators, Electric Resistance, Electrical Resistivity, I-V Characteristics, Series & Parallel Circuits, Electrical Power, Sources of Electrical Energy, Electromotive Force & Internal Resistance, Variable Resistance
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Simple Harmonic Motion
Describing Oscillations, Simple Harmonic Motion (SHM), Time Period of a Mass–Spring System, Time Period of a Simple Pendulum, Energy Changes in Simple Harmonic Motion (SHM), Equations for Simple Harmonic Motion (SHM), Calculating Energy Changes in SHM, Phase Angles in Simple Harmonic Motion (SHM)
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Wave Model
Properties of Waves, Transverse & Longitudinal Waves, Sound Waves, Electromagnetic Waves
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Wave Phenomena
Wavefronts & Rays, Reflection, Refraction & Transmission, Diffraction of Waves, Refraction of Waves, Superposition of Waves, Interference of Waves, Young’s Double-Slit Experiment, Single-Slit Diffraction, Diffraction Gratings
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Standing Waves & Resonance
Standing Waves, Nodes & Antinodes, Boundary Conditions for Standing Waves, Harmonics in Strings & Pipes, The Nature of Resonance, The Effect of Damping
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Doppler Effect
The Doppler Effect, The Doppler Effect of Light, Galactic Redshift, Equations for the Doppler Effect of Sound
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Gravitational Fields
Newton's Law of Gravitation, Gravitational Field Strength, Gravitational Field Lines, Gravitational Potential, Gravitational Potential Energy in a Non-Uniform Field, Gravitational Potential Energy Equation, Gravitational Potential Gradient, Gravitational Equipotential Surfaces, Kepler's Laws of Planetary Motion, Escape Speed, Orbital Motion, Speed & Energy, Effects of Drag on Orbital Motion
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Electric & Magnetic Fields
Electric Charge, Millikan's Oil Drop Experiment, Static Electricity, Coulomb's Law, Electric Field Strength, Electric Field Lines, Electric Potential, Electric Potential Energy, Electric Potential Gradient, Electric Equipotential Surfaces, Magnetic Fields
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Motion in Electromagnetic Fields
Magnetic Force on a Current-Carrying Conductor, Magnetic Force between Two Parallel Conductors, Magnetic Force on a Charge, Charged Particles in Magnetic Fields, Charged Particles in Electric Fields, Charged Particles in Electric & Magnetic Fields
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Induction
Induced Emf, Magnetic Flux, Faraday’s Law of Induction, Lenz's Law, AC Generators
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Structure of the Atom
Rutherford's Gold Foil Experiment, Nuclear Notation, Emission & Absorption Spectrum, Photon Energy, Rutherford Scattering & Nuclear Radius, Deviations from Rutherford Scattering, The Bohr Model of Hydrogen
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Quantum Physics
The Photoelectric Effect, The Photoelectric Equation, The Particle Nature of Light, The de Broglie Wavelength, Wave-Particle Duality, Compton Scattering
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Radioactive Decay
Isotopes & Radioactive Decay, Background Radiation, Alpha, Beta & Gamma Particles, Radioactive Decay Equations, Activity & Half-Life, Decay Constant & Half-Life, The Law of Radioactive Decay, Applications of Radioactivity, Mass Defect & Nuclear Binding Energy, Binding Energy per Nucleon Curve, Nuclear Stability, Nuclear Energy Levels, Evidence for the Neutrino
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Fission
Spontaneous & Induced Fission, Energy Released in Fission Reactions, Chain Reactions from Fission, Operation of a Nuclear Reactor, Radioactive Waste Management
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Fusion & Stars
Fusion Reactions in Stars, Energy Released in Fusion Reactions, Star Formation, Life Cycle of a Star, The Hertzsprung–Russell (HR) Diagram, Emission & Absorption Spectra in Stars, Stellar Parallax, Determination of Stellar Radii
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Measurements in Physics
Fundamental & Derived Units in IB Physics, Using Scientific Notation in Physics, Using Dimensional Analysis, Measurement Techniques in IB Physics
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Processing Uncertainties
Random & Systematic Errors, Calculating Uncertainties, Determining Uncertainties from Graphs
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Scalars & Vectors
Scalar & Vector Quantities, Combining & Resolving Vectors, Scale Diagrams
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