| A | B |
|---|
| potential energy | objects that are able to fall have this type of energy |
| kinetic energy | energy "in use", energy of motion |
| radiant energy | light energy |
| thermal energy | heat energy |
| nuclear energy | energy that uses the nucleus of uranium atoms |
| chemical energy | energy that food contains |
| electrical energy | anything that uses batteries or plugs into a wall outlet |
| coal, oil, natural gas | fossil fuels |
| renewable | an energy source that is replenished continually |
| nonrenewable | an energy source that is used up much faster than it can be replaced |
| inexhaustibe | an nergy source that can't be used up by humans |
| hydroelectric | energy that uses the potential energy of WATER |
| geothermal | energy that uses the heat inside of Earth |
| photovoltaics | a device that changes radiant to electrical |
| inexhaustible | solar, wind, and geothermal are examples of this type of energy resource |
| law of conservation of energy | states that energy is never created or destroyed |
| energy | ability to do work or cause change |
