| A | B |
|---|
| energy | the ability to do work |
| joule | the metric unit of work |
| power | work done per unit of time |
| watt | metric unit of power |
| work | force times distance |
| law of conservation of energy | a scientific theory that explains that energy cannot be made nor destroyed, only changed in form |
| potential energy | stored energy |
| kinetic energy | energy that is actually doing something; moving energy |
| mechanical energy | the energy of moving things |
| electromagnetic energy | energy from the movement of electrons through matter; electricity and light are examples |
| nuclear energy | the energy that holds protons and neutrons together in the nucleus of atoms |
| thermal pollution | waste heat that escapes into the atmosphere |
| scientific theory | an idea supported by much evidence over a period of time |
| chemical energy | the energy that holds the atoms in molecules together |
| heat energy | energy from the random motion or vibration of atoms within matter |
