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Heat

Published on Nov 23, 2015

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PRESENTATION OUTLINE

1.

Heat is a form of energy associated with the movement of atoms and molecules in material.

2.

Heat transfer is energy in transit due to temperature difference.

3.

THE THREE METHODS OF HEAT TRANSFER

CONVECTION, CONDUCTION, RADIATION
4.

CONVECTION

A METHOD OF HEAT TRANSFER THROUGH FLUIDS WITH THE CIRCULATION OF ATOMS.
5.

EXAMPLES

  • Boiling water
  • Putting frozen food under water to thaw.
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6.

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7.

CONDUCTION

A METHOD OF HEAT TRANSFER THROUGH SOLID WITH THE VINRATION OF ATOMS.
8.

EXAMPLES

  • Picking up a hot cup of coffee
  • Using a heating blanket to get warm
9.

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10.

RADIATION

METHOD OF HEAT TRANSFER FROM A LIGHT SOURCE.
11.

EXAMPLES

  • A person placing their hand over a hot burner
  • Lying in the sun to get a tan
12.

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13.

Only convection and conduction require movement of matter. Radiation does not.

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