Question

Which types of heat transfer involve heat flow from hot objects to colder objects?

Answer 1

convection, conduction, and radiation

Answer 2

Answer: The correct answer is Option A.

Explanation:

Heat transfer is defined as the process in which heat is transferred from high temperature to low temperature to maintain equilibrium.

There are 3 modes by which heat can be transferred, they are:

1. Conduction: This mode of heat transfer occurs whenever a direct contact between two object happens.
2. Convection: This mode of heat transfer occurs whenever a movement of fluid (liquid or gas) takes place.
3. Radiation: This mode of heat transfer occurs whenever a direct transfer of energy through space happens.  

Thus, all these three modes involve the heat flow from hot objects to cold objects.

Hence, the correct answer is Option A.