| A | B |
|---|
| energy | ability to do work |
| work | transfer of energy |
| potential energy | energy stored, at rest |
| elastic potential energy | energy that is released when the object is stretched or compressed |
| kinetic energy | energy of motion |
| mechanical energy | potenial and kinetic energy |
| thermal energy | movement of atoms in matter which causes warmth |
| chemical energy | stored in chemical bonds like in gas, oil and food |
| electrical energy | charges and currents/batteries |
| electromagnetic energy | travels through space as electromagnetic waves like light, or x-rays |
| nuclear energy | stored in the nucleus of an atom |
| nuclear fusion | nuclear energy released by combining fusing nuclei |
| nuclear fission | nuclear energy released by splitting the nucleus |
