-conduction is the transfer of heat energy without the substance itself moving.
strucutre of metals makes them a good conductor of heat.
metal gets hotter the particals gain more kinetic energy and vibrate.
convection
transfer of heat energy thorugh movement.
occurs in liquids and gases and creates convection currents
rasiation
thermal, or infra red, radiation is the transfer of heat energy by electromagnetic waves ; no particles of matter are involved.
all objects emit and absorb radiation.
hotter objects more engery it radiates.
heat transfer can be slowed down by the use of insulation which provides a barrier.
dark matt- emit more radiation. dark matt- absorb more radiation that light
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