Convection Answers

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5

In which scenario does radiation occur?

A
warming soup on a stove
B
drying towels at the beach
C
cooking eggs in boiling water
D
warming a sore muscle with a hot pack
6

In which scenario is thermal energy being transferred by radiation?

A
[Image: A lava lamp lit from below....]
Option A
B
[Image: A steaming mug of brown liquid sits on snow....]
Option B
C
[Image: A chick sits beneath a bright lamp....]
Option C
D
[Image: An iron is used on a wrinkled shirt....]
Option D
7

Is thermal energy being transferred from the metal pan to the eggs by radiation in this image? Why or why not?

Answer:

No, thermal energy is being transferred from the metal pan to the eggs by conduction, not radiation. Conduction is the transfer of heat through direct contact between two objects, such as the pan and the eggs. Radiation involves the transfer of energy through electromagnetic waves and does not require direct contact.

8

What did you include in your response? Check all that apply.

A
No, thermal energy is not being transferred from the metal pan to the eggs by radiation.
B
The eggs are in direct contact with the metal pan.
C
Thermal energy is being transferred by conduction.
D
Radiation transfers thermal energy by electromagnetic waves.
E
Radiation does not transfer thermal energy by direct contact.

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