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Chapter 10 Key Terms
Vocabulary words
16
Science
8th Grade
02/21/2008

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Term
temperature
Definition
a mesure of how hot or cold something is.
Term
thermal expansion
Definition
the increase of volume of a substance due to an increase of temperature
Term
absolute zero
Definition
the lowest possible temperature
Term
heat
Definition
the transfer of energy between two substances that are different temperatures
Term
thermal energy
Definition
the total energy of the particles that make up an object
Term
conduction
Definition
the transfer of thermal energy from one substance to another through direct contact
Term
conductor
Definition
a substance that conducts thermal energy well
Term
insulator
Definition
a substance that does not conduct thermal energy well
Term
convection
Definition
the transfer of thermal energy by the movement of liquid or gas
Term
radiation
Definition
the transfer of energy through matter or space as electromagnetic waves such as visible light and infared waves
Term
specific heat capacity
Definition
the ammount of energy needed to change the temperature of 1k of a substance by one degree celcius
Term
states of matter
Definition
the physical forms in which a substance can exist
Term
change of state
Definition
the conversion of a substance from one physical form to another
Term
insulation
Definition
a substance that reduces the transfer of thermal energy
Term
heat engine
Definition
a machine that uses heat to do work
Term
thermal pollution
Definition
the excesive heating of a body of water
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