Question

Which of these describes how heat transferred by convection?

Answer 1

Answer;

A. Warm air rises and takes heat with it; eventually it cools and sinks

Explanation;

• Heat transfer involves exchange of heat or thermal energy between two systems, such that heat flows from the system with higher temperature to the one with low temperature.
• Convection is one of the three types of heat transfer, others being conduction and radiation.
• Convection involves heat transfer in fluids. Heat is transferred by mass motion of a fluid such as water or air when heated and caused to move away from the heat source carrying thermal energy with it.

Answer 2

D. This is because convection is the process of heat passing through liquid or gas.