| A | B |
| Mechanical energy | Total amount of kinetic and potential energy in a system |
| Work | Transfer of energy through motion |
| Temperature | Measure of the average kinetic energy of the particles in a sample of matter |
| Thermal pollution | May occur as an effect of waste heat on the enviroment |
| Energy | The ability to cause change |
| Specific heat | Amount of energy it takes to raise the temperature of one kilogram of material one celsius degree |
| Heat | Energy that flows from something with a higher temperature to something with a lower temperature |
| Potential energy | Stored energy |
| Kinetic energy | energy in the form of motion |
| Law of Conservation of Energy | Energy may change from one form to another but it cannot be created or destroyed under ordinary conditions |
| Thermal energy | Total energy of the particles in a material |
| Joules | A unit for measuring heat |