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16 Cards in this Set

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Temperature
a measure of how hot or cold something is
thermal expansion
the increase in volume due to an increase in temperature
absolute zero
the lowest possible temperature

0 Kelvin, -273 C
heat
the transfer of energy between 2 objects that are at different temperatures
thermal energy
the total energy of the particles that make up an object
conduction

d
the transfer of energy through direct contact
conductor
a substance that conducts thermal energy very well

ex. metal
insulator
a substance that does NOT conduct energy very well
convection
the transfer of thermal energy by the movement of a liquid or a gas
radiation
the transfer of energy through matter or space as visible light or infrared waves.
ex. the sun, a fire
specific heat capacity
the amount of energy needed to change the temperature of 1 kilogram of a substance by 1 degree Celsius
states of matter
the physical forms that a substance can exist in
change of state
the change/conversion of a substance from one physical form into another
insulation
a substance that reduces the transfer of thermal energy
heat engine
a machine that uses heat to do work
thermal pollution
the excessive heating of a body of water