| A | B |
|---|
| alternative energy resources | wood, wind, hydro, geothermal, tidal, etc. |
| energy transformation | energy conversion to another form |
| nonrenewable energy resource | form that will run out |
| photovoltaic collector | transforms radiant energy into electricity |
| renewable energy resource | energy source that is replenished |
| inexhaustible resource | source that cannot be stopped |
| fossil fuel | millions of years to form |
| kinetic energy | the energy of motion |
| potential energy | energy due to position |
| radiant energy | energy that moves in waves |
| thermal (heat) energy | moving molecules |
| wind energy | motion of the atmosphere |
| chemical energy | stored in molecules |
| electrical energy | carried by electrical current |
| generator | changes mechanical energy into electricity |
| light energy | a form of radiant energy |
| mechanical energy | energy that moves objects |
| nuclear energy | energy in atomic nuclei |
