Conduction

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.

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Land heats up and cools down faster than water.

• True
• False

dark colored surfaces _________ radiation

• reflect 
• absorb

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What type of heat transfer takes place when you touch a warm mug of hot chocolate?

• Radiation

• Convection

• Conduction

• None of the above

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Conduction requires

• Electricity

• the electromagnetic spectrum and particles

• air or water flow

• direct contact

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Heat transfer always moves ...

• cold to hot

• east to west

• hot to cold

• north to south

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

• Convection

• Radiation

• Conduction

• Reflection

The following diagram shows water in contact with an ice cube and warmer air.

Which way will energy flow?

• From the air to the water

• From the water to the air

• From the ice cube to the air

• From the ice cube to the water

Tags

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Energy is transferred as heat between two objects of ___________ temperatures.

• differing

• same

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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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