| A | B |
|---|
| Heat energy | moves from warmer regions to cooler regions |
| thermal systems | designed to move heat energy from warmer regions to cooler regions |
| delta-T | temperature difference |
| Insulation | used to reduce heat loss in the winter and to reduce heat gain in the summer |
| Think | temperature difference as a force |
| heat | a descriptive word that refers to the form of energy found in the vibrating motion of atoms and molecules |
| temperature | useful physical quantity |
| Why does heat flow from hot to cold? | Because the hot molecules move faster than the cold molecules |
| Thermometer | instrument that measures temperature |
| Fahrenheit | standard measure of temperature |
| Celsius | SI Measurement of temperature |
| Thermocouple | a temperature measuring device that depends on changes in the electrical properties of certain materials for its operation |
