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Chapter 6 Vocab.
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 1kg of a material. |
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. |
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. |