100+ Free IGCSE Physics Practice Questions

Motion, Forces and Energy

SI units, speed and velocity, acceleration, distance-time and speed-time graphs, suvat equations, free fall and terminal velocity, mass and weight (W=mg), density, Hooke's law, F=ma, Newton's third law, momentum and impulse, moments and equilibrium, centre of mass, work, kinetic and gravitational potential energy, efficiency and Sankey diagrams, power, pressure (p=F/A and p=rho g h)

Thermal Physics

Kinetic particle model of solids, liquids and gases, Brownian motion as evidence (Einstein), gas pressure-temperature-volume relationships (pV=constant, p/T=constant, V/T=constant), thermal expansion of solids/liquids/gases and the 0-4 degree C anomaly of water, specific heat capacity Q=mc(deltaT), specific latent heat of fusion and vaporisation Q=mL, change-of-state graphs, conduction, convection, radiation and applications (vacuum flask, greenhouses, sea breeze)

Waves (Light and Sound)

Transverse vs longitudinal waves, wavefronts and rays, v=f times lambda, reflection and refraction, refractive index, critical angle and total internal reflection, converging and diverging lenses, ray diagrams, dispersion of white light, electromagnetic spectrum from radio to gamma with uses and dangers, sound waves as compressions and rarefactions, audible range 20-20000 Hz, ultrasound applications, echoes and the oscilloscope

Electricity and Magnetism

Electric charge, charging by friction, electroscope, electric fields, current I=Q/t, voltage V=W/Q, resistance R=V/I and Ohm's law, series and parallel circuits, I-V characteristics of ohmic conductor, filament lamp and diode, LDRs and thermistors, electrical power P=IV, household safety, AC mains 230 V 50 Hz, magnetism and magnetic fields, electromagnets, motor effect F=BIL with Fleming's left-hand rule, DC motors, electromagnetic induction, transformers V1/V2=N1/N2 and grid distribution

Nuclear Physics

Nuclear structure (protons, neutrons, electrons), isotopes and nuclide notation A-Z X, alpha (helium nucleus), beta-minus (electron from neutron), gamma (high-energy EM), penetrating power and ionising power, deflection in electric and magnetic fields, nuclear equation balancing, half-life from graphs and tables, uses of radioisotopes (smoke detectors, tracers, therapy, thickness gauges, carbon dating), radiation safety, nuclear fission of U-235 with moderators and control rods, fusion and background radiation

Space Physics

Solar system structure: 8 planets in order, terrestrial vs gas giants, asteroid belt, comets and elliptical orbits, dwarf planets, Kepler's third law T^2 proportional to r^3, stellar life cycle from nebula to main sequence to red giant/white dwarf or red supergiant/supernova/neutron star/black hole, the Milky Way and other galaxies, Big Bang theory with redshift of distant galaxies (Hubble's law v=H0 d) and cosmic microwave background, light year as a unit of distance