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Heat Quiz
| Term | Definition |
|---|---|
| Thermal Energy | amount of heat caused by the motion of atoms in a substance |
| Coldness | lack o f heat |
| Heat moves from _____________________ to ______________________ objects. | hot - cold |
| Temperature | measure of the average kinetic energy of the particles in an object |
| Thermal Expansion | an increase in the size of a substance in response to an increase in its temperature. |
| Absolute Zero | The lowest temperature in the Kelvin Scale - all molecular motion stops. |
| Phase Change | the change of a substance from one phase of matter to another |
| Melting Point | temperature at which a solid changes to a liquid - 0 degrees - gaining heat |
| Freezing Point | temperature at which a liquid changes to a solid - 0 degrees - losing heat |
| Boiling Point | temperature at which a liquid changes to a gas - 100 degrees |
| Latent Heat | the amount of energy absorbed or released by a substance during a phase change that occurs without changing its temperature |
| Latent Heat of Vaporization | amount of energy absorbed during boiling, or released during condensation |
| Latent Heat of Fusion | amount of energy absorbed during melting, or released during freezing |
| Boiling Point of Water | 100 degrees Celsius |
| Freezing Point of Water | 0 degrees Celsius |