Question

heat transfer by fluid movement is called...

select one:
a. convection
b. conduction
c. radiation
d. diffusion

Explanation:

Identify the mechanism of heat transfer in fluids

Heat transfer occurs through three primary mechanisms: conduction, convection, and radiation. Conduction is heat transfer through direct contact in solids. Convection is heat transfer by the macroscopic movement of a fluid (liquid or gas). Radiation is heat transfer through electromagnetic waves.

Match the definition to the options

The question asks for the term describing "Heat transfer by fluid movement." This matches the definition of convection.

Answer:

• a. Convection (Correct answer)
• b. Conduction
• c. Radiation
• d. Diffusion