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Methods of energy transfer

Methods of energy transfer. Conduction. The transfer of energy as heat between particles collide within a substance or between two objects in contact Two objects of unequal temperature in contact Ex. Heating a marshmallow at a campfire with a wire rod. What happens?. Convection.

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Methods of energy transfer

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  1. Methods of energy transfer

  2. Conduction • The transfer of energy as heat between particles collide within a substance or between two objects in contact • Two objects of unequal temperature in contact • Ex. Heating a marshmallow at a campfire with a wire rod. What happens?

  3. Convection • The transfer of energy by the movement of fluids (liquid or gas) with different temperatures • Ex. Fire embers at campfire • Particles in solids are not as free to move • Convection currents- cycle of heated fluid rising and then cooling and falling

  4. Radiation • The transfer of energy by electromagnetic waves (infrared radiation, visible light, ultraviolet rays) • Does not involve the movement of matter • Only method of energy transfer that can occur in a vacuum (outer space) • Ex. Standing by campfire, outside of convection current

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