Heat Transfer

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Heat Transfer

description

Heat Transfer. List what they have in common. List what they have in common. List what they have in common. Temperature vs. Heat. Temperature - a measure of the amount of kinetic energy in a substance Heat - a transfer of energy between two objects due to a difference in temperature - PowerPoint PPT Presentation

Transcript of Heat Transfer

Page 1: Heat Transfer

Heat Transfer

Page 2: Heat Transfer

List what they have

in common

Page 3: Heat Transfer

List what they have

in common

Page 4: Heat Transfer

List what they have

in common

Page 5: Heat Transfer

Temperature- a measure of the amount of

kinetic energy in a substance

Heat- a transfer of energy between two objects due to a difference in temperature Heat always moves from hot to cold

Temperature vs. Heat

Page 6: Heat Transfer

Conduction Convection Radiation

3 Ways Heat can be Transferred

Page 7: Heat Transfer

The transfer of heat (energy) from one

substance to another substance that is touching it It is most effective in solids, but can happen in liquids

Fun fact: Have you ever noticed that metals tend to feel cold?

Believe it or not, they are not colder! They only feel colder because they conduct heat away from your hand. You perceive the heat that is leaving your hand as cold

Conduction

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The transfer of heat (energy) by the

movement of matter. Happens mostly in gas and liquids This happens with currents Colder matter (more dense) sinks below warmer

matter and pushed warmer matter up Have you ever heard of the saying “warm air

rises” Why does colder matter sink? (hint: use

kinetic energy, molecules, and density)

Convection

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Electromagnetic waves directly transport

energy through space Done without the help of fluids or solids Travel in waves

Radiation

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Electromagnetic

Spectrum

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A. Convection B. Conduction C. Radiation

Why you use a hot pad when touching a metal pot that has been on the stove

Page 12: Heat Transfer

A. Convection B. Conduction C. Radiation

This causes an entire pot of hot what to boil

Page 13: Heat Transfer

A. Convection B. Conduction C. Radiation

A rain shadow is a result of this type of heat transfer.

Page 14: Heat Transfer

A. Convection B. Conduction C. Radiation

The sun heats the surface of the Earth through this

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A. Convection B. Conduction C. Radiation

Melting ice in your hand

Page 16: Heat Transfer

A. Convection B. Conduction C. Radiation

A microwave cooks food with this

Page 17: Heat Transfer

A. Convection B. Conduction C. Radiation

Land and sea breezes are caused by this. (Actually all winds are)

Page 18: Heat Transfer

A. Convection B. Conduction C. Radiation

X-Rays

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A. Convection B. Conduction C. Radiation

This is why a metal spoon gets warm when placed in a hot drink

Page 20: Heat Transfer

A. Convection B. Conduction C. Radiation

This causes condensation on the outside of an ice cold drink

Page 21: Heat Transfer

A. Convection B. Conduction C. Radiation

Typically, thunderstorms with large cumulonimbus clouds only occur in warmer months. That is because they are formed by….

Page 22: Heat Transfer

A. Convection B. Conduction C. Radiation

Radio waves are an example of…

Page 23: Heat Transfer

A. Convection B. Conduction C. Radiation

This causes plate tectonics (movement of plates on Earth’s surface)

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A. Convection B. Conduction C. Radiation

Your cellphone creates/receives this to communicate to other devices

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A. Convection B. Conduction C. Radiation

This causes trade winds, westerlies, and easterlies that affect major weather patterns. For example: The ITCZ near

the equator most often has clouds and rain. This is also where rainforests are.