| A | B |
|---|
| sun | major source of energy |
| mecanical energy | energy associated with matter's motion |
| nuclear energy | fission and fusion |
| electromagnetic energy | light radio/TV |
| heat energy | energy transferred from warmer to cooler objects |
| heat energy | due to internal motion of particles |
| heat energy | nonexistent at 0K (absolute zero) |
| mechanical enrgy | example is sound |
| nuclear energy | from inside of atoms |
| energy | ability to do work |
| chemical energy | released when bonds are broken |
| everything in the universe | matter or energy |
| law of conservation of energy | energy cannot be created or destroyed |
| potential energy | stored energy |
| potential energy | energy of position |
| kinetic energy | energy of motion |
| fossil fuels | coal oil and natural gas |
| fossil fuels | nonrenewable |
| solar energy | renewablw |
| wind energy | renewable |
| geothermal energy | renewable |
| geothermal energy | heat from inside the earth |
| wood | renewable |
| hydroelectrical energy | renewable |
| hydroelectrical energy | from falling water |
| hydroelectrical energy | Niagra Falls |
