Chapter 9 Heat and Heat Technology Vocab
Order by
30 terms
Terms | Definitions |
|---|---|
 Temperature | A measure of the average kinetic energy of the particles in an object. |
| Thermal Expansion | The increase in volume of a substance due to an increase in temperature. |
| Absolute Zero | The lowest temperature on the Kelvin scale is O K. |
| Heat | The transfer of energy between objects that are at different temperatures. |
| Thermal Energy | The total kinetic energy of the particles that make up a substance. |
| Thermal Equilibrium | The point when both objects reach the same temperature. |
| Conduction | The transfer of thermal energy from one substance to another through direct contact. |
| Conductors | Substances that conduct thermal energy very well. |
| Insulators | Substances that do not conduct thermal energy very well. |
| Convection | The transfer of thermal energy by the movement of a liquid or a gas. |
| Radiation | The transfer of energy through matter or space as electromagnetic waves. |
| Thermal Conductivity | The rate at which a substance conducts thermal energy. |
| Specific Heat Capacity | The amount of energy needed to change the temperature of 1 kg of a substance by 1° C. |
| Calorimeter | Is used to find the specific heat capacity of a substance. |
| States of Matter | The physical forms in which a substance can exist. |
| Change of State | The conversion of a substance from one physical form to another. |
| Freezing | Liquid to solid |
| Melting | Solid to liquid |
| Boiling | Liquid to gas |
| Condensing | Gas to liquid |
| Steam-Heating System | Is similar to a hot-water heating system, except that steam is used. |
| Insulation | A substance that reduces the transfer of thermal energy. |
| Passive solar heating systems | DO NOT have moving parts. They rely on a building's design and parts. |
| Active solar heating systems | Do have moving parts. They use pumps and fans to distribute energy throughout the building. |
| Heat Engine | A machine that uses heat to do work. |
| Combustion | Process of how engines burn fuel. |
| External combustion engines | Heat engines that burn fuel outside the engine. |
| Internal combustion engines | Heat engines that burn fuel inside the engines. |
| Thermal Pollution | The excessive heating of a body of water. |
| Chemical Changes | Can cause thermal energy to be absorbed or released. |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.