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Thermal Energy
Unit 3 - Thermal Energy
Term | Definition |
---|---|
absolute zero | 0 Kelvin; the temperature at which particle motion is so slow that no additional thermal energy can be removed from a substance |
temperature | a measure of the average kinetic energy of the particles in an object |
heat | thermal energy that flows from something at a higher temperature to something at a lower temperature |
thermal energy | sum of the kinetic and potential energy of all the particles in an object |
convection | transfer of thermal energy in a fluid by the movement of warmer and cooler fluids |
conduction | transfer of thermal energy by particle collisions (direct contact) |
radiation | transfer of energy by electromagnetic waves |
joule | unit of measurement for energy |
specific heat | the amount of heat needed to raise 1 gram of a substance 1 degree Celsius |
endothermic | energy is absorbed in the form of heat |
exothermic | energy is released in the form of heat |