| A | B |
| energy | the ability to do work |
| work | the transfer of energy from one object to another |
| joule | the unit of energy equal to the work done when a force of 1 newton (N) acts through a distance of 1 meter |
| fuel | any substance that can be burned to provide heat |
| energy source | something that provides energy or releases energy when burned, e.g. coal, oil |
| thermal energy | heat energy |
| electrical energy | energy in electric charges |
| chemical potential energy | stored energy found in foods, fuels, and batteries |
| stored energy | energy an object has because it is in a position where it is affected by a force; also called potential energy |
| sound energy | energy released by vibrating objects |
| kinetic energy | the energy in moving objects; also called movement energy |
| gravitational potential energy | stored energy in raised objects |
| strain potential energy | stored energy in stretched or squashed objects; also called elastic energy |
| light energy | the energy of light; also called radiant energy |
| nuclear potential energy | energy stored in the nuclei of atoms |
| Priniciple of Conservation of Energy | “Energy cannot be created or destroyed; it is only ever changed from one form to another.” |
| energy form | a type of energy, e.g. light, heat, etc. |
| energy resource | a way to get an energy source; can be renewable or non-renewable; e.g. sun, wind, coal mine, gas well |