heat and heat technology Flashcards
temperature
measure of how hot or cold something is. Measure of average kinetic energy of particles in an object
thermal expansion
increase in the size of a substance in response to an increase in the temperature of the substance
absolute zero
temperature at which molecule energy is at minimum
heat
the energy transferred between objects that are at different temperatures
thermal energy
the kinetic energy of a substance atoms
thermal conduction
the transfer of heat through a material
thermal conductor
material through which energy can be tranferred as heat
thermal insulator
material that reduces or prevents the transfer of heat q
convection
transfer of thermal energy by circulation or movement of a liquid or gas
radiation
transfer of energy as electromagnetic waves
specific heat
quantity of heat required to raise a unit mass of homogeneous 1 K to 1C
states of matter
the physical forms of matterm which include solid, liquid, gas
change of state
the change of substance from one physical state to another
insulation
substance that reduces transfer of electricity, heat, or sound
heat engine
machine that transforms heat into mechanical energy, work
