Heat transfer

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Heat transfer

  1. 1. ConductionThe kinetic energy ofthe particles increases.particles of a solidThis is the transfer of heatin most solids.Heat is transferredby direct contact.
  2. 2. Conductors and insulatorsmetalInsulators do not allowheat to move throughthem easily. plastic Double-glazed windowairair spacecorkConductors allow heat tomove through themeasily.
  3. 3. Convectiongas particlesliquid particlesconvection currentsThis is the transfer of heat inliquids and gases.Heat is transferredby the movementof currents.
  4. 4. GreenhouseRadiationsolarradiationradiationemitted byplantsThis is the transfer of heat by electromagnetic waves.No contact isnecessary betweenthe source and theheated substance.

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