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Convection currents in a kettle, illustration

Convection current in heated water, illustration

Convection currents in a saucepan, illustration

Convection current in heated water, illustration

Conduction, convection, radiation, illustration

Conduction, convection, radiation, illustration

Heat transfer in a pan on a stove, illustration

Thermal conduction in a metal, illustration

Thermal conduction in a metal, illustration

Thermal conduction in a metal, illustration

Thermal conduction in a metal, illustration

Thermal conduction in a metal, illustration

Thermal conduction in water, illustration

Vacuum flask, illustration

Vacuum flask, illustration

Conduction, convection, radiation, illustration

Air convection from radiator, illustration

Heat loss from a house, illustration

Heat transfer in a pan on a stove, illustration

Conduction and insulation, illustration

Conduction and insulation, illustration

Charles's law apparatus, illustration

Pressure-temperature gas law, illustration

Charles's law apparatus, illustration

Central heating circuit, illustration

Immersion heater, illustration

Immersion heater, illustration

Fluorescent tube lighting, illustration

Cavity wall insulation, illustration

Cavity wall insulation, illustration

Thermal conduction in water, illustration

Dark car and light metallic car in the sun, illustration

Vacuum flask, illustration

Lamp, illustration

Food mixer, illustration

Microwave oven, illustration

Storage heater, cutaway illustration

Electric dipole field lines, illustration

Ammeter and circuit symbol, illustration

Lamp, cell and ammeter connected in series, illustration

Magnetic field round a solenoid, illustration

Car, illustration

Energy transfer, illustration

Energy transfer, illustration

Seven forms of energy, illustration

States of matter, illustration

States of matter, illustration

States of matter, illustration

Structure of Earth's atmosphere, illustration

Potential and kinetic energy, illustration

Non-renewable energy, illustration

Non-renewable energy, illustration

Pressure-temperature gas law, illustration

Charles's law apparatus, illustration

Gay Lussac's pressure-temperature gas law, illustration

Gay Lussac's pressure-temperature gas law, illustration

Electric bell mechanism, diagram

Electric bell mechanism, diagram

Simple alternating current generator, illustration

Transformer, illustration

Transformer, illustration

Transformer, illustration

Electromagnetic relay, diagram

Electric bar heater, illustration

Equal volumes of different materials, illustration

Equal volumes of different materials, illustration

Oscilloscope, illustration

Convection current, illustration

Refraction, illustration

Refraction analogy, illustration

Snell's law, illustration

Demonstration of atmospheric pressure, illustration

Demonstration of atmospheric pressure, illustration

Cavity wall insulation, illustration

Fluorescent and incandescent light bulbs, illustration

Light bulb efficiencies, Sankey diagrams

Incandescent light bulb efficiency, Sankey diagram

Incandescent light bulb efficiency, Sankey diagram

Fluorescent light bulb efficiency, Sankey diagram

Fluorescent light bulb efficiency, Sankey diagram

Smoke alarm, illustration

Electrostatic spray painting, illustration

Electrostatic spray painting, illustration

Electrical component symbols, illustration

Electric cell and circuit symbol, illustration

Electric lamp and circuit symbol, illustration

Electric switch and circuit symbol, illustration

Electric switch and circuit symbol, illustration

Electric motor and circuit symbol, illustration

Electric buzzer and circuit symbol, illustration

Fixed resistor and circuit symbol, illustration

Variable resistor and circuit symbol, illustration

Light-emitting diode and circuit symbol, illustration

Electrolytic capacitor and circuit symbol, illustration

Light-dependent resistor and circuit symbol, illustration

Circuit board, illustration

Simple lighting circuit, illustration

Simple lighting circuit, illustration

Two lamps connected in series, illustration

Two lamps connected in series, circuit diagram

Two lamps connected in parallel, illustration

Two lamps connected in parallel, circuit diagram

Rheostat resistor, illustration

Rotary potentiometer, illustration

Torch, illustration

Ripple tank with plane waves, illustration

Ripple tank, illustration

Ripple tank with plane and circular waves, illustration

Wavelength and amplitude, illustration

Wavelength and amplitude, illustration

Wavelength and amplitude, illustration

Raybox, illustration

Shadow cast by a large light source, illustration

Reflection in a plane mirror, illustration

Convex and concave lenses, diagram

Static electricity and water stream, illustration

Static electricity on rubbing rod with cloth, illustration

Static electricity on rubbing rod with cloth, illustration

Static electricity, rubber rod with fur, illustration

Static electricity, comb attracting paper, illustration

Shadow cast by a small light source, illustration

Manometer, illustration

Manometer, illustration

Circuit breaker, diagram

Circuit breaker, diagram

Residual current circuit breaker, diagram

Residual current circuit breaker, diagram

Electrolysis, illustration

Electrolysis, illustration

Electromagnet, illustration

Electromagnet, illustration

Electromagnet, illustration

Magnetic field round a coil of wire, illustration

Magnetic field round a solenoid, illustration

Polarity of a current carrying wire coil, illustration

Electromagnet, illustration

Motor effect, illustration

Moving coil loudspeaker, diagram

Moving coil loudspeaker, diagram

Simple electric motor, illustration

Circuit breaker, diagram

Electromagnetic induction, illustration

Simple direct current generator, illustration

Moving-coil microphone, diagram

Cathode ray tube, illustration

Fleming's left-hand rule for motors, illustration

Fleming's left-hand rule for motors, illustration

Fleming's right-hand rule for generators, illustration

Fleming's right-hand rule for generators, illustration

Motor effect, illustration

Total internal reflection in an optical fibre, illustration

Total internal reflection in an optical fibre, illustration

Electromagnetic spectrum, illustration

Electric field lines, illustration

Energy efficiency, Sankey diagram

Environmental Impact Rating, illustration

Renewable energy, illustration

Renewable energy, illustration

Hammer, illustration

Energy conversion, illustration

Photovoltaic effect in a solar panel, illustration

Photovoltaic effect in a solar panel, illustration

Hydrogen atom, illustration

Hydrogen atom, illustration

Seven forms of energy, illustration

Faraday-Tyndall effect, illustration

Molar volume, illustration

Mole formula, illustration

Mole formula, illustration

Mole formula, illustration

Domestic lighting circuit, illustration

Lighting circuit with two-way switches, illustration

Radio waves, illustration

Radio waves, illustration

Pressure exerted by a sharp knife, illustration

Pressure exerted by a sharp knife, illustration

Pressure exerted by a sharp knife, illustration

Pressure exerted by a sharp knife, illustration

States of matter, illustration

States of matter, illustration

States of matter, illustration

Nitrous oxide molecule, illustration

Lightning conductor, diagram

Diffraction of long and short waves, illustration

Diffraction of microwaves and radio waves, illustration

Boyle's law apparatus, illustration

Greenhouse effect, illustration

Greenhouse effect, illustration

Bicycle dynamo, illustration

Simple alternating current generator, illustration

AC dynamo and oscilloscope, illustration

Immersion heater, illustration

Storage heater, cutaway illustration

Microwave oven, illustration

Osmosis, illustration

Ideal gas law, illustration

Measuring the volume of an irregular object, illustration

Measuring the volume of an irregular object, illustration

Measuring the volume of an irregular object, illustration

Measuring the volume of an irregular object, illustration