| A | B |
|---|
| energy | the ability to cause change |
| kinetic energy | energy an object has due to its motion |
| potential energy | energy stored in an object due to its position |
| thermal energy | all objects have that increases as the object's temp. increases; the sum of potential and kinetic energy |
| chemical energy | energy stored in chemical bonds |
| radiant energy | energy carried by light |
| electrical energy | energy carried by electric current |
| nuclear energy | energy contained in atomic nuclei |
| law of conservation of energy | states that energy can change its form but is never created or destroyed |
| generator | device that transforms kinetic energy into electrical energy |
| turbine | set of steam-powered fan blades that spins a generator at a power plant |
| nonrenewable resource | energy resource that is used up much faster than it can be replaced |
| renewable resource | energy resource that is replenished continually |
| alternative resource | new renewable or inexhaustible energy source; includes solar, wind and geothermal energy |
| inexhaustible resource | energy source that can't be used up by humans |
| photovoltaic | device that transforms radiant energy directly into electrical energy |
