Heat Transfer: Conduction Convection Radiation

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

• conduction
• convection
• radiation
• Insolation 

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Ironing a shirt is an example of...

• condensation
• conduction
• convection
• radiation

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A group of friends gather around a fire to stay warm.

• conduction
• convection
• radiation

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Hot coffee is stirred with a spoon; the spoon gets hot due to

• conduction
• convection
• radiation

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In a swimming pool, water near the surface is slightly warmer. The warm water rises because of

• conduction
• convection
• radiation

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The sun shines down on this family as the play on the beach.

• conduction
• convection
• radiation

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How many kinds of heat transfer are there?

• 1
• 2
• 3
• 4 or more

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In heat transfer, heat always flows from the _______________ substance to the _______________ substance.

• Hotter to colder
• Colder to hotter
• Hotter to hotter
• Colder to colder

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You get sunburned due to __________ from the sun.

• conduction
• convection
• radiation

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