Read About It: Thermal Energy Transfer

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AND

Multiple Choice

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.

Multiple Choice

Objects that allow heat (thermal) energy to move through easily are called:

• Conductors

• Insulators

Multiple Choice

Is an oven mitt a conductor or insulator?

• Conductor

• Insulator

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Multiple Choice

What is convection?

• Transfer of heat through the movement of a fluid

• Transfer of heat through conduction

• Transfer of heat through radiation

• Transfer of heat through the movement of a solid

Multiple Choice

Give an example of natural convection.

• Cooling of a cup of hot coffee

• Melting of ice in a glass of water

• Burning of a candle

• Rising of hot air and sinking of cold air in a room

Multiple Choice

Explain how convection is involved in weather patterns.

• Convection is only involved in weather patterns during the winter months.

• Convection is involved in weather patterns as warm air rises and cool air sinks, creating vertical movement of air masses.

• Convection only affects the temperature of the air, not the movement.

• Convection is not involved in weather patterns.

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Multiple Choice

What type of energy transfer happens when a person places their hands in front of the fire to warm them up?

• Convection

• Conduction

• Radiation

Multiple Choice

What type of energy transfer happens to a boiling pot of moving water?

• Convection

• Conduction

• Radiation

Multiple Choice

You leave a metal spoon inside a cup of hot cocoa and go video games for a few minutes. When you come back and grab the spoon, it burns your hand. Why does this happen?

• The spoon is a conductor, so the hot cocoa transferred heat through it easily.

• The spoon is a insulator, so the hot cocoa transferred heat through it easily.

• The hot cocoa is a form of radiation, so it makes metal hot.

• The spoon insulated the heat into your hand

Open Ended

This room is an open system. Thermal energy from sunlight comes through the window on the left and from the hot-water radiator below it. Explain how energy flows into, out of, and within the system. Be sure to include the window on the right.