Which method of heat transfer occurs when stepping barefoot onto hot pavement?

The correct answer is C. Conduction. Conduction is the transfer of heat through direct physical contact between objects, which is exactly what happens when your bare foot touches hot pavement - thermal energy moves from the hotter surface directly into your skin. Radiation (A) is incorrect because that involves…

Cooling Systems in the Data Center

Question

Which method of heat transfer occurs when stepping barefoot onto hot pavement?

Options

ARadiation
BConvection
CConduction
DEvaporation

How the community answered

(42 responses)

A
7% (3)
B
2% (1)
C
86% (36)
D
5% (2)

Explanation

Conduction is the transfer of heat through direct physical contact between objects, which is exactly what happens when your bare foot touches hot pavement - thermal energy moves from the hotter surface directly into your skin. Radiation (A) is incorrect because that involves heat transfer through electromagnetic waves without contact, like warmth from the sun. Convection (B) is wrong because it requires a moving fluid (liquid or gas) to carry heat, such as boiling water or a ceiling fan circulating warm air. Evaporation (D) is a cooling process, not a method of heat transfer in this context.

Memory tip: Think "Conduction = Contact" - both start with "Con," and both require two things to be touching.

Topics

#Heat Transfer#Conduction#Thermal Properties#Cooling Fundamentals

Community Discussion

No community discussion yet for this question.

Full DU0-001 Practice