Multiple Choice
Which of the following is an example of heat transfer through ?
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20. Heat and Temperature
Heat Transfer
Multiple Choice
Which of the following best describes convection in the context of heat transfer?
A
The transfer of heat by chemical reactions within a substance
B
The transfer of heat through the bulk movement of a fluid such as a liquid or gas
C
The transfer of heat by electromagnetic waves without the need for a medium
D
The transfer of heat through direct contact between molecules without bulk movement
Verified step by step guidance1
Understand that heat transfer occurs in three main ways: conduction, convection, and radiation.
Recall that conduction is the transfer of heat through direct contact between molecules without any bulk movement of the substance.
Recognize that radiation is the transfer of heat through electromagnetic waves and does not require a medium.
Identify convection as the transfer of heat through the bulk movement of a fluid (liquid or gas), where warmer parts of the fluid move to cooler areas, carrying heat with them.
Therefore, convection is best described as the transfer of heat through the bulk movement of a fluid such as a liquid or gas.
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