Conservation of Energy

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Presentation transcript:

Conservation of Energy

Energy Changes Form Example: A toaster (electrical energy  thermal energy) Think – Pair – Share: With your partner think of 3 examples where energy is changed from one form to another

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Mechanical Energy Total KE can never be MORE than total PE in a system Unless energy is added

Friction Again!? Friction causes: kinetic energy to change into thermal energy The ME of a system to decrease

The Law Of Conservation of Energy cannot be created or destroyed can only be changed from one form to another

Energy in the Body Calorie Unit used to measure how much energy you get from food 1 Calorie = 4,184 Joules

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