Which of the following statements about convection is true?
A)Heat is transferred from hot material to cool material without inducing a flow.
B)Hot material flows upward and displaces cool material.
C)Cool material flows upward and displaces hot material.
D)Random circulation occurs.

Question

Quizplus · Accepted Answer

Convection involves the movement of hot material upwards (due to its lower density when heated) which then displaces the cooler, denser material, causing it to sink. This process results in a transfer of heat through the movement of the fluid (which can be a liquid or gas).

Which of the Following Statements About Convection Is True