Thermal Energy and Heat

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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What kind of heat transfer happens when the sun is heating your body?

• Conduction
• Radiation
• Convection
• Density

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What heat transfer happens when you burn your hand by touching a fire?

• Radiation

• Conduction

• Convection

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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Johnny accidentally grabbed the handle of the hot pot.

• 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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Conduction occurs in...

• solids
• liquids
• gases

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What happens when ice cubes melt in a glass?

• Heat travels from the ice to the warmer water.
• No energy is transferred.
• Heat is transferred from the warmer water to the ice cubes.
• The water warms up due to the humidity

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Why do we wear sweaters in cold weather?

• To keep cold out.
• To generate heat.
• To reduce heat loss.
• All of the above.

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