Thermal Energy Transfer Unit Review

What is the definition of CONDUCTION?

• When heat is transferred from objects like rays of light or electromagnetically.
• a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
• When heat transfers from objects that are touching.
• When heat transfers through the heater or AC in your house.

Heat transfer always moves ...

• cold to hot

• east to west

• hot to cold

• north to south

If you walk barefoot on hot asphalt, energy is transferred by which process?

• Convection

• Radiation

• Conduction

• Reflection

Which direction is heat flowing in the picture?

• from the hand to the ice
• from the ice to the hand
• heat is not being transferred
• there is no way to tell

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The earth receives heat energy from the sun by _______________, which is the transfer of energy as electromagnetic waves?

• radiation
• convection
• conduction
• greenhouse effect

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NGSS.MS-PS3-4

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Heating a room with a fireplace

• Conduction

• Convection

• Radiation

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• Conduction

• Convection

• Radiation

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What is the definition of CONVECTION

• When heat transfers through waves.
• When heat transfers from objects that are touching.
• a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
• Heat traveling from the sun

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NGSS.MS-ESS2-6

Which of the following is an example of convection?

• A hair dryer is drying up your hair.
• When the AC or heater changes the temperature.
• When a car engine turns hot after being turned on.
• When you are making soup and the water is rising and lowering.

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NGSS.MS-ESS2-6

Warm air rises and the cool air sinks demonstrates this type of heat transfer. 

• conduction
• convection
• radiation
• Insolation 

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