GCSE Physics
Energy and particles
revision.
Play this section Energy stores and transfers, efficiency, resources, the particle model, density and radioactivity.
Energy and particles guides
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Students type: nuclear fission chain reaction GCSE Physics
Open guide Revision guideIrradiation and contaminationStudents type: irradiation vs contamination GCSE Physics
Open guide Revision guideHalf-lifeStudents type: half-life graph GCSE Physics worked example
Open guide Revision guideTypes of radiationStudents type: alpha beta gamma penetration ionisation GCSE
Open guide Revision guideThe atomic modelStudents type: Rutherford gold foil plum pudding GCSE Physics
Open guide Revision guideChanges of stateStudents type: changes of state particle model GCSE Physics
Open guide Revision guideGas pressureStudents type: gas pressure particle collisions GCSE Physics
Open guide Revision guideSpecific latent heatStudents type: specific latent heat E = mL GCSE Physics
Open guide Revision guideSpecific heat capacityStudents type: specific heat capacity ΔE = mcΔθ GCSE
Open guide Revision guideDensityStudents type: density mass volume GCSE Physics practical
Open guide Revision guideEnergy resourcesStudents type: renewable vs non-renewable energy resources GCSE
Open guide Revision guidePower and workStudents type: power P = E/t watts GCSE Physics
Open guideEnergy
The flagship opening of GCSE Physics: energy stores and pathways, conservation, efficiency, power, specific heat capacity and energy resources.
Particle model of matter
Density, changes of state, internal energy, specific latent heat, and how gas pressure depends on particle motion.
Radioactivity
Isotopes, alpha, beta and gamma, half-life, irradiation versus contamination, and uses and risks of nuclear radiation.
Energy stores and transfers
Teacher-written GCSE Physics revision on energy stores and transfers: name kinetic, gravitational and thermal stores, then follow mechanical, electrical, heating and radiation pathways with conservation.
Efficiency
Teacher-written GCSE Physics revision on efficiency: useful energy or power divided by total input, then × 100 for a percentage, with Sankey diagrams and why values cannot exceed 100%.
Insulation and thermal transfer
Teacher-written GCSE Physics revision on insulation: conduction, convection and radiation, thermal conductivity, loft lagging and cavity walls, and how trapped air slows the rate of heat loss.
Power and work
Teacher-written GCSE Physics revision on power and work: W = Fs, P = E/t and P = W/t, with watts as joules per second, and the substitutions examiners expect on Combined and Triple papers.
Energy resources
Teacher-written GCSE Physics revision on energy resources: renewable versus non-renewable, reliability, base load, environmental impact, and how to compare solar, wind, hydro, nuclear and fossil fuels.
Density
Teacher-written GCSE Physics revision on density: ρ = m/V with mass in kilograms and volume in cubic metres, plus the required practical for regular and irregular solids and liquids.
Specific heat capacity
Teacher-written GCSE Physics revision on specific heat capacity: ΔE = mcΔθ, the energy to raise 1 kg by 1 °C, water’s high value, and the required practical with power, time and heat loss.
Specific latent heat
Teacher-written GCSE Physics revision on specific latent heat: E = mL for melting and boiling at constant temperature, fusion versus vaporisation, and why heating curves go flat.
Gas pressure
Teacher-written GCSE Physics revision on gas pressure: particle collisions with container walls, why heating at constant volume raises pressure, and how volume and temperature change the collision rate.
Changes of state
Teacher-written GCSE Physics revision on changes of state: melting, freezing, boiling, condensing and sublimation in the particle model, with internal energy, mass conservation and heating curves.
The atomic model
Teacher-written GCSE Physics revision on the atomic model: plum pudding to nuclear atom, protons, neutrons and electrons, isotopes, and how alpha-particle scattering changed the picture.
Types of radiation
Teacher-written GCSE Physics revision on alpha, beta and gamma radiation: ionising power, penetration, deflection in fields, nuclear equations, and a use matched to each type.
Half-life
Teacher-written GCSE Physics revision on half-life: the time for net count rate or unstable nuclei to halve, background subtraction, decay graphs, and a full numerical example with units.
Irradiation and contamination
Teacher-written GCSE Physics revision on irradiation versus contamination, background radiation, risks of ionising radiation, and how time, distance and shielding reduce dose.
Fission and fusion
Teacher-written GCSE Physics revision on nuclear fission and fusion: chain reactions, control rods and moderators, hydrogen fusing to helium in stars, and why fusion on Earth is still a control problem.
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More GCSE Physics
in the same style.
Teacher-written GCSE Physics revision for Combined and Triple Science: energy stores, electricity, particle model, radioactivity, forces, motion, waves and space.
All Physics revision