Physics P7 (2)
- Created by: aleena147
- Created on: 21-12-19 20:36
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Efficiency
most energy transferes involves some losses often by heating
important priciple is= energy is only useful when it is transferred from one store to a useful store
some input energy is always lost or wasted for example a motor will transfer energy to the kientic store but it will aslo transfer energy to the thermal stores of the motor and surroundings (wasted)
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