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Chapter 6 Thermal Energy

Terms in this set (14)

temperature
the measure of the average kinetic energy of the particles in the object.
thermal energy
the sum of the kinetic and potential energy of all the particles in an object.
heat
thermal energy that flows from something at a higher temperature to something at a lower temperature.
specific heat
amount of thermal energy needed to raise the temperature of 1 kg of a material 1degree C
conduction
the transfer of thermal energy by collisons between particles in matter
radiation
the transfer of energy by electromagnetic waves.
insulator
a material in which heat flows slowly
convection
the transfer of thermal energy in a fluid by the movement of warmer and cooler fluid from place to place.
solar collectors
absorb radiant energy from the sun
thermodynamics
the study of relationships between thermal energy, heat, and work
first law of thermodynamics
the increase in thermal energy of a system equals the work done on the system plus the heat transferred to the system.
second law of thermodynamics
states that is is impossible for heat to flow from a cool object to a warmer object unless work is done.
heat engine
a device that converts heat into work
internal combustion engine
heat engine that burns fuel inside the engine in chambers or cylinders.
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