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16 terms

Pysical Science

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conductor
something that conducts thermal energy well (thermal) or which charges move easily through (electrical)
insulator
something that does NOT conduct thermal energy well (thermal) or that charge deos not move easily through (electrical)
convection
the transfer of thermal energy by the movement of a liquid or a gas
radiation
the transfer of energy through matter of space as electromagnetic waves
specific heat capacity
the amount of enery needed to change the temperature of 1 kg or a substance by 1 degree celsius
states of matter
the physical forms in which a substance can exist: like a sold, liquid, gas and plasma.
change of state
the conversion of a substance from one physical form to 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
thermal energy
the total energy of the particles that make up an object
heat
the transfer of energy between objects that are at different temperatures
absolute zero
the lowest possible temperature
thermal expansion
the increase in volume of a substance due to an increase in temperature
temperature
a measure of how hot or cold something is
conduction
a method of charging an object when electrons are transferred from one object to another by direct contact (electric) or the transfer of thermal energy from one substance to another through direct contact (thermal)