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chapter 6
Term | Definition |
---|---|
temperature | measure of the average kinetic energy of all the paricles in an object. |
thermal energy | sum of kinetic and potential energy the particles in an objects is transferred bu conduction, convention and radiation |
heat | thermal energy that flows from a warmer materialto a cooler material |
specific heat | amount of thermal energy energy needed to raise the temperature of 1 kg of a material 1 c |
conduction | transfer of thermal energy by collisions between particles in a matter at a higher temperature and particles in matter at a lower temperature |
convection | transfer of thermal energy by collisions between particles in matter at a lower temperature. |
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. |
first law of thermodynamics | states that the increase in thermal enrgy of a system equals the work done on 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 obhet to a warmer |
heat engine | device that converts thermal energy into work |
internal combustion engine | heat engine that burns fuel inside the engine in chambers or cyclinders |