electrical to sound - stereo, chemical to kinetic - car, electrical to gravitational - escalator, nuclear to electrical - heysham power station, elastic to kinetic - catapult, kinetic to electrical - wind turbine, electrical to light (and heat) - light bulb, chemical to electrical - battery, chemical to heat and movement - person eating, light to electrical - solar panel, gravitational to kinetic - sky diver, elastic to sound - bursting balloon,

energy changes

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