Question

Heat can be transferred through conduction, convection, and radiation. What is necessary in order for heat to be transferred by conduction?

Answer 1

The objects must be in direct contact with one another.

Explanation: "Heat is transferred by conduction when objects are in direct contact with one another.

Heat transfer through space is radiation, and heat transfer through currents in liquids or gases is convection"

Answer 2

For conduction, the two materials need to be touching.