| Question |
Answer |
| caloric theory | A theory that defined thermal energy as an substance that flowed from hot bodies into cold bodies.
|
| calorie (cal) | The amount of thermal energy required to increase the temperature of 1g of water 1 degree C |
| conduction | The flow of thermal energy from an object to another object through contact. |
| conductors | Any substance that will allow the flow of thermal energy; in electricity, a substance that holds its valence electrons loosely, allowing the flow of electricity. |
| convection | The flow of thermal energy from one place to another by the movement of particles. |
| convection current | A mass of moving particles that carries thermal energy. |
| entropy | The amount of disorder and randomness in a system, unusable energy. |
| heat | The kinetic energy present within the particles of matter; the transfer of thermal energy. |
| heat of fusion | The amount of thermal energy needed to change a substance from its solid phase to its liquid phase. |
| heat of vaporization | The amount of thermal energy needed to change a substance from its liquid phase to its gaseous phase. |
| insulators | A substance that does not conduct electricity or heat very well. |
| kilocalorie (kcal) | 1000 calories |
| kinetic theory of thermal energy | Identifies the thermal energy of an object with the motion of its particles. |
| R-value | A measurement of the insulating ability of a substance. |
| radiation | The transportation of thermal energy without the use of matter. |
| specific heat | The amount of thermal energy needed to raise the temperature of 1g of a substance 10 C. |
| temperature | The measure of the average kinetic energy in a material. |
| thermal equilibrium | When the average kinetic energy of the particles of two objects are at the same temperature and conduction stops. |
| thermal expansion | An increase in the volume of a substance caused by the addition of thermal energy. |
| thermodynamics | The branch of physics that deals with thermal energy. |
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