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heat terms ch.10
heat terms
| Question | Answer |
|---|---|
| Temperature | measure of the average kinetic energy of the particles in an object |
| The temperature of a substance is not determined by | how much of the substance you have |
| A thermometer | operates of the principle of thermal expansion |
| Thermal expansion occurs when | insert a hot substance |
| Explain why a bridge built over a river or interstate has joints in it | these joints keep the bridge from buckling as a result of thermal expansion |
| Heat | the transfer of energy between objects that are at different temperatures |
| Thermal energy | total energy of the particles that make up a substance |
| What is thermal equilibrium | energy will always be transferred from the higher-temperatures object to the lower-temperature object until both reach the same temperature |
| How do you know when you have thermal equilibrium | no net change in either object’s thermal energy occurs |
| 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 | transfer of thermal energy by the movement of a liquid or a gas |
| Radiation | the transfer of energy through matter or space as electromagnetic wave such as visible light and infrared waves |
Created by:
jpak
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