chapter 5 Flashcards
temperature
measure of the average kinetic energy of the particles in an object
thermal expansion
increase in volume of a substance because increase of temperature
absolute zero
the lowest temperature on a kelvin scale
heat
is the energy transferred between objects that are in different temperarues
thermal conductor
a material through which energy can be transferred to heat
thermal insulator
a material that reduces or prevents the transfer of heat
convection
the transfer of thermal energy by the circulation or movement of liquid or gas
radiation
the transfer of energy as electromagnetic waves
specific heat
the amount of energy needed to change the temperature of 1 kg of a substance by 1 C.
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
insulator
material that reduces the transfer of thermal energy
heat engine
a machine that transforms heat into mechanical energy or work
thermal polution
the excessive heating of a body of water.
thermal energy
the kinetic energy of a substances atoms
insulation
a substance that reduces the transfer of electric heat or sound.
