Heat Transfer.

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Heat always flows away from a hot material to a cold material

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Presentation transcript:

Heat Transfer

Remember!!!!! Heat is the movement of thermal energy from hot to cold

The Nature of Heat Heat Moves One Way Heat always moves from hot to cold until both are equal/ equilibrium is reached

How is Heat Transferred? The Nature of Heat How is Heat Transferred? Conduction Convection Radiation

Read & Annotate pages 458 – 459 in the textbook. Assignment Read & Annotate pages 458 – 459 in the textbook. As you read make sure to circle “blah” words, circle, highlight or start important information. Write down AT LEAST 4 statements from the reading that you feel are the most important

The Nature of Heat Conduction, Heat is transferred from one particle of matter to another within an object or between 2 objects (solid to a solid – objects are touching) Ex: heat travels through metal

How does the demo demonstrate conduction?

Convection is heat transfer that occurs in fluids – gasses & liquids The Nature of Heat Convection is heat transfer that occurs in fluids – gasses & liquids circular movement that transfers heat w/in the liquid or air Ex. if you watch a pot of hot water on a stove, you will see the water moving

How does the demo demonstrate convection?

The Nature of Heat Radiation is the transfer of energy by electromagnetic waves Does not require matter How heat travels to us from the sun. You can feel radiation from a bonfire

How does the demo demonstrate radiation?