| A | B |
|---|
| conduction | transfer of energy through matter by direct contact |
| fluid | any material that flows |
| convection | transfer of energy by the bulk movement of matter |
| radiation | transfer of energy in the form of electromagnetic waves |
| insulator | material that does not allow heat to move easily through it |
| radiator | a device designed to heat the air by conduction |
| solar energy | energy from the sun |
| solar collector | device that absorbs the sun's radiant energy |
| heat engines | devices that convert thermal energy into mechanical energy |
| combustion | rapid burning |
| internal combustion engine | fuel burns inside engine chambers called cylinders |
| external combustion engine | fuel is burned outside an engine |
