| A | B |
|---|
| thermal energy | internal energy of a thermodynamic system that results in the system’s temperature |
| macroscopic | measureable and observed with the naked eye |
| microscopic | samples and objects that cannot be seen with the unaided eye |
| temperature | measure of the average kinetic energy of the particles in a sample |
| thermodynamics | science of energy conversions involving heat and other forms of energy |
| heat reservoir | a system whose heat capacity is so large that is remains at a constant temperature when it is in contact with another system |
| conduction | The flow of thermal energy that requires matter but mass does not move |
| radiation | thermal energy transfer that does not require matter -through electromagnetic waves. |
| Convection | transfer of thermal energy matter that requires matter the moving matter carries the energy |
| latent heat | the energy per unit mass that is transferred during a phase change of a substance |
| phase change | the physical change of a substance from one state to another at constant temperature and pressure |
| entropy | Measure of disorder in a system |
| thermal expansion | the increase in the length or volume of a material due to a change in its temperature change |
| absolute temperature | Kelvin scale |
| heat engine | A device that converts heat energy into mechanical energy to do work |
| order and disorder | structured vs chaos |
| heat exchange | exchange of energy in or between systems resulting in the change of thermal energy of a system |
| geothermal | relating to the heat in the interior of the earth |
| thermal equilibrium | when two systems have the same temperature at the same time |
| specific heat capacity | the heat required to raise unit of mass by one degree of temperature |
