renewable, Wind, solar and hydro are all types of _________ energy, sun, A disadvantage of solar energy - it does not work when there is no ___, wind, A disadvantage of wind energy - it does not work when there is no ___, power, The quantity of energy transformed every second is known as the _____ rating of an appliance, joule, The unit of energy, electromagnet, A type of magnet that can be switched on and off, battery, An electromagnet needs coils of wire, a switch and a _______ to work, switch, A digital input device that can be "on" or "off", loudspeaker, An analogue output device that converts electrical energy into sound, ammeter, A device that measures current in a circuit, resistance, Ohm's Law: __________ = voltage / current, moving, In a gas the particles are constantly ______, decreases, As a car tyre cools down, its volume ________, heat, In the furnace of a coal power station, chemical energy is changed into ____ energy, generator, In a power station, kinetic energy is changed into electrical energy in this part, efficiency, If a lot of energy is "lost" e.g. as heat, a device has a low percentage __________, transformer, An electric device that changes the size of a voltage, series, Total resistance equals the sum of individual resistances in this type of circuit, digital, A relay is this type of output device, LDR, An analogue input device whose resistance changes with light brightness

N4 Physics - E&E revision crossword

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