Lubrication - Lots of this prevents energy being lost as heat energy, Dissipation - Any energy that is not transfered to useful energy is .... as wasted energy, Conservation - Keep the same, Energy - The ability to do work, Thermal Conductivity - How good a material is at letting heat energy pass through it, Closed system - When no energy leaves or enters the system, Useful energy - The sort of energy that you want from an appliance, Conduction - How heat energy moves through solids, Transferred - When energy moves from one store to another we say it is ..., Wasted energy - Energy transfered to non useful stores - usually heat,

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