Energy

Key Words

Energy stores - where energy is stored. 8 energy stores are:

Energy transfer - energy is moved from one store to another.

Work done - same as energy transfer.

Closed systems - somewhere where energy does not enter or leave.

Conservation of Energy Principle - Energy can be transferred usefully, stored or dissipated but can never be created or destoyed.

Dissipated energy - when energy is transfered not all of the energy moves usefully to a store, instead it becomes wasted.

Joule (J) - What energy is measured in. 1000 J = 1 kJ (kilo-joule).

Also see Energy transfers by heating, Energy Resources