Sustainable Living: 3M FuturewiseTown PlanIntroductionGo BackGo Next3M

Energy types

Energy transformations


Energy is most useful when it is changing from one form to another e.g. fuel burning to give heat and light; a music system converting electrical energy to sound and heat energy.

These are called energy transformations. In every energy transformation, energy is conserved, which means there is the same amount of energy after the transformation as before – but the energy is in different forms.

Can energy be lost?