| A | B |
| fossil fuel | oil, natural gas, coal |
| renewable | a resource that can be replaced by nature such as wood |
| non-renewable | resource that cannot be replaced by nature such as fossil fuels |
| law of conservation of energy | states that energy can not be created or destroyed, only changed from one form to another |
| potential energy | examples: gravitational, elastic, chemical, water behind a dam |
| kinetic energy | examples: electrical, moving objects, mechanical, light, sound |
| nuclear energy | heat produced by radioactive breakdown of elements |
| turbine | large fan that is turned by wind or water to produce electricity |
| specific heat | Joules of heat needed to raise the temperature of a gram of substance 1 C |
| phase change | a physical change of state such as water to ice, ice to steam, etc. |
| electromagnetic radiation | all forms of light--visible, infrared, gamma rays, ultraviolet |
| nuclear fission | splitting of atoms |
| geothermal energy | heat generated by volcanic activity underground and used to heat water |
| hydrogen fuel cell | used to produce electrical power from hydrogen rich fuels such as methanol |
| hydroelectric power | electricity generated by water flowing through a dam |
| solar cell | captures light energy and uses it to generate electricity |