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Energy 21 century
types and sources of energy
| Question | Answer |
|---|---|
| energy | is the ability to cause change |
| kinetic energy | is the energy an object has due to its motion |
| potential energy | is the energy stored in a object because of its position |
| thermal energy | that increases as its temperture |
| chemical energy | is the energy stored in chemical bonds |
| radiant energy | energy carried by light. |
| electrical energy | is the energy that is carried by an electric current. |
| nuclear energy | energy contained in atomic nuclei. |
| law of conservation of energy | energy is never created or destroyed. It only changes form |
| generator | is a device that tranforms kinetic energy into electrical energy |
| turbine | set of steamed-power fan blades that spins a generator at a power plant |
| nonrenwable resource | energy reasource that is used up much faster and it can be replaced |
| renewable resource | energy source that is replenished continually |
| alternative resource | new renweable or inexhaustable energy source; includes solar energy, wind, and geothermal energy |
| inexhaustible resource | is an energy source that can't be used up by humans |
| photovoltaic | is a device that transforms radient energy directly into electrical energy |
Created by:
susan601
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