What is the law of conservation of energy?

The law of conservation of energy states that energy cannot be created or destroyed it can only be transferred from one form to another. An example of this is when an object is falling: its gravitational potential energy is transferred to kinetic energy. In some systems the efficiency of this transfer may not be 100% and so energy can be dissipated to the surroundings (eg as sound, heat).

Answered by Jared R. Physics tutor

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