15 terms

VOCABULARY #19: Science Chapter 13

a measure of how hot (or cold) something is; specifically, a measure of the average kinetic energy of the particles in an object
thermal expansion
an increase in the size of a substance in response to an increase in the temperature of the substance
absolute zero
the temperature at which molecular energy is at a minimum (0 K on the Kelvin scale or -273.16ºC on the Celsius scale)
the energy transferred between objects that are at different temperatures
thermal energy
the kinetic energy of a substance's atoms
thermal conduction
the transfer of energy as heat moves through a material
thermal conductor
a material through which energy can be transferred as heat
thermal insulator
a material that reduces or prevents the transfer of heat
the transfer of thermal energy by the circulation or movement of a liquid or gas
the transfer of energy as electromagnetic waves
states of matter
the physical forms of matter, which include solid, liquid, and gas.
change of state
the change of a substance from one physical state to another
a substance that reduces the transfer of electricity, heat or sound
heat engine
any engine that makes use of heat to do work
thermal pollution
a temperature increase in a body of water that is caused by human activity and that has a harmful effect on water quality and on the ability of that body of water to support life