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chapter6vocabulary
chapter 6 vocabulary for science
Term | Definition |
---|---|
Temperature | measure of the average kinetic energy of all the particles in an object. |
Thermal energy | sum of the kinetic and potential energy of the particles in an object; is transferred by conduction, convection, and radiation. |
Heat | thermal energy that flows from a warmer material to a cooler material. |
Specific Heat | amount of thermal energy needed to raise the temperature of 1 kg of a material 1 °C. |
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 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. |
1st 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. |
2nd 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. |