Heat Transfer Answers

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Identify the method of thermal energy transfer.

Answers:
A::convection
B::radiation
C::conduction
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How are conduction, convection, and radiation different?

Answers:
Conduction transfers thermal energy by.:the movement of molecules
Convection transfers thermal energy by.:the movement of a fluid
Radiation transfers thermal energy by.:electromagnetic waves
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Which statement best compares conduction, convection, and radiation?

A
Convection and radiation transfer thermal energy through matter only, and conduction transfers thermal energy through both matter and empty space.
B
Radiation and conduction transfer thermal energy through matter only, and convection transfers thermal energy through both matter and empty space.
C
Convection and conduction transfer thermal energy through matter only, and radiation transfers thermal energy through both matter and empty space.
D
Conduction, convection, and radiation transfer thermal energy through both matter and empty space.
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✔ conductionconvectionradiation

A
conduction
B
convection
C
radiation
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Identify the method of thermal energy transfer at work in hot air balloons. Explain how thermal energy is transferred in this scenario.

Answer:

The method of thermal energy transfer at work in hot air balloons is convection. The air inside the balloon is heated, causing the molecules to move faster and spread out. This makes the hot air less dense than the cooler air surrounding it, which causes the hot air to rise and lift the balloon.

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What did you include in your response? Check all that apply.Convection occurs in hot air balloons.Air above the flame warms, becomes more dense, and rises. Cool air in the balloon sinks and takes the place of the warm air that rises, and is warmed by the flame.The cycle continuously warms up the air in the balloon.

A
Convection occurs in hot air balloons.
B
Air above the flame warms, becomes more dense, and rises.
C
Cool air in the balloon sinks and takes the place of the warm air that rises, and is warmed by the flame.
D
The cycle continuously warms up the air in the balloon.

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