Chapter 6 Flashcards
temperature
a measure of how hot or cold something is
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
heat
the energy tranferred between objects that are at different temperature
thermal energy
the kinetic energy of a substance’s atoms
thermal conductor
the transfer of energy as heat though a material
thermal insulator
a material that reduces or prevents the transfer of heat
convection
the transfer of thermal energy by the circulation or movement of a liquid or gas
radiation
the transfer of energy as electromagnetic waves
specific heat
the quantity of heat required to raise a unit mass
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
insolation
a substance that reduces the transfer of electricity, heat or sound
heat engine
a machine that transforms heat into mechanical energy, or work
thermal polution
a temperature increase in a body of water that is caused by human activity and that has harmful effect on water quality and on the ability of that body of water to support life
