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Thermal Energy

TermDefinition
temperature a measure of the average kinetic energy of the particles in a substance
thermal expansion the expansion of matter when it is heated
Fahrenheit scale most common temperature scale in the US
Celsius scale most common temperature scale outside the US; the preferred temperature scale of scientists
absolute zero the temperature at which no more energy can be removed from matter
heat thermal energy moving from a warmer object to a cooler object
specific heat the amount of energy required to raise the temperature of 1 kg of a substance by 1 degree kelvin
conduction the transfer of heat from one particle of matter to another particle
convection the transfer of heat by the movement of currents through a fluid
convection current a circular motion resulting from the rising of a heated fluid and the sinking of a cooled fluid
radiation the transfer of energy by electromagnetic waves through space
conductor a material that conducts heat easily
insulator a material that does not conduct heat well
change of state the physical change from one state of matter to another
melting the change from the solid to the liquid state of matter
freezing the change from the liquid to the solid state of matter
evaporation the change when surface liquids change to a gas
boiling the change when the entire mass of liquid changes to gas
condensation the change from the gas to the liquid state of matter
Created by: Rita.Rogers
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