| A | B |
|---|
| Conduction | Transfer of heat in solids through direct contact |
| Convection | Transfer of heat in gas or liquid through mass movement of material |
| Radiation | Transfer of heat using EM wave in empty space |
| Heat sink | Lower temperature in a system |
| Heat source | Higher temperature in a system |
| Temperature gradient | Change in temperature between objects in a system |
| Heat flows | Hotter to Cooler |
| Example of Radiation | Heat from a campfire |
| Example of Convection | Hot air rising / Cool air sinking |
| Example of Conduction | Coffee mug getting hot |
