electrical energy - Energy in the movement of charged particles, like electrons, light energy - Visible energy, in the form of waves - doesn't need matter to transmit, sound energy - Audible energy, in the form of waves - does need matter to transmit, kinetic - The energy of motion, potential - Energy that is stored, gravitational - Stored energy contained in something raised above the ground, chemical potential - Stored energy in food or other fuels, elastic potential - Stored energy in something that is stretched or compressed, joule - The units energy is measured in, insulator - A material that heat travels through very slowly, it conserves heat energy, conductor - A material energy flows through very quickly, for example heat or electricity, energy transfer - When energy of the same type moves from one object to another, transformation - When energy in the same object is changed from one type to another, energy efficiency - The proportion of useful energy output from a device compared to the amount of energy put in, radiation - A method of heat energy transfer that does not need a medium, convection - A method of heat energy transfer that relies on the movement of heated particles, conduction - A method of heat energy transfer that moves directly from one object to another via touch, reflection - When light bounces off a surface, refraction - The bending of light as it passes through a different medium, decibel - The unit of the loudness of a sound,

Year 8 Energy Revision

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