Heat Transfer Definitions Flashcards
(20 cards)
absorb
to take in energy
condense
gas turn to liquid
conduction
the way heat travels through solids
conductor
a material which lets energy flow through it easily.
contract
get smaller
convection current
a current created by heat causing changes in the density of a fluid
emit
to give out energy
evaporate
liquid turns to a gas
expand
get bigger
fluid
a gas or a liquid
gas
particles that are spread out and not attached to each other
heat insulator
material that does not let heat energy flow through it easily
infrared radiation
a wave that can travel through transparent things and a vacuum
insulator
a material which does not let energy flow through it easily
joules
the units for measuring energy
liquid
something made made of particles that are touching in an irregular array, but can move past each other
melt
when a solid turns into a liquid
radiation
the transfer of heat energy by electromagnetic waves
solid
made of particles that are close together in a regular array but can’t move past each other
thermal energy
another name for heat energy
