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PS Ch6
Vocabulary
Term | Definition |
---|---|
Temperature | Measure of the average kinetic energy of all the particles in an object. |
Heat | Thermal energy that flows from a warmer material to a cooler material. |
Thermal Energy | Sum of the kinetic and potential energy of the particles in an object; is transferred by conduction, convection, and radiation. |
Specific Heat | Amount of thermal energy needed to raise the temperature of 1 kg of a material 1 degrees celsius. |
Conduction | Transfer of thermal energy by collisions between particles in matter at a higher temperature and particles in matter at a lower temperature. |
Convection | Transfer of thermal energy in a fluid by the movement of warmer and cooler fluid from one place to another. |
Radiation | Transfer of thermal energy by electromagnetic waves. |
Insulator | Material in which electrons are not able to move easily or material in which heat flows slowly. |
Solar Collector | Device used in an active solar heating system that absorbs radiant energy from the Sun. |
Thermodynamics | Study of the relationship between thermal energy, heat, and work. |
First Law of Thermodynamics | States that the increase in thermal energy of a system equals the work done on the system plus the heat added to the system. |
Second Law of Thermodynamics | States that is impossible for heat to flow from a cool object to a warmer object unless work is done. |
Heat Engine | Device that converts thermal energy into work. |
Internal Combustion Engine | Heat engine that burns fuel inside the engine in chambers or cylinders. |