| A | B |
|---|
| chemical energy | energy stored in bonds |
| heat energy | produced by friction |
| kinetic energy | energy stored by an object in motion |
| light energy | used by plants to make their food |
| mechanical energy | total of kinetic and potential energy |
| nuclear energy | produced by fission or fusion |
| potential energy | energy stored in bonds |
| work | movement of an object through a distance by a force |
| elastic potential energy | energy that can be compressed or stretched |
| gravitational potential energy | stored energy due to position |
| one half the mass times velocity squared | kinetic energy |
| force X distance | potential energy |
| joules | SI unit of energy |
| Newtons | SI unit for weight |
| law of conservation of energy | energy remains constant |
| weight | the response of mass to the pull of gravity |
| mass | amount of matter in an object |
| temperature | average kinetic energy in a substance |
| heat energy | the energy of molecules in motion |
| thermal energy | the total energy of the particles in a substance |
