| A | B |
|---|
| chemical potential energy | energy stored in chemical bonds |
| elastic potential energy | energy stored by things that stretch or twist or compress |
| gravitational potential energy | energy stored by things attracted to each other by the force of gravity |
| joule | SI unit of energy |
| kinetic energy | energy in the form of motion |
| law of conservation of energy | energy can never be created or destroyed |
| mechanical energy | sum of potential and kinetic energy of a system |
| potential energy | stored energy due to position |
