Question

The end of the iron fire poker that you are holding gets warm even though it is not directly in the fire. The motion of the iron atoms is responsible for this heat transfer.
True
False

Answer 1

I believe the statement is true. The heat transfer involved here is called conduction. It is one type of heat transfer where it caused by the collisions of the particles in a certain body. As the you add heat to the object, the kinetic energy of the molecules increases therefore more collisions could happen which would mean energy is dissipated or transferred from molecule to molecule.<span />

Answer 2

Answer: False

Explanation:

The heat transfer can be achieved in three ways:

1. Conduction: This type of heat transfer happens when there is direct contact between the two objects. The motion of the atoms is responsible for this heat transfer.

2.  Convection: This type of heat transfer happens when there is a movement of fluid (liquid or gas) in which convection currents are produced due to the movement of hot fluid upwards and cold fluid downwards. This happens as the density of hot fluid decreases and thus it moves upwards.

3. Radiation: This type of heat transfer happens when there is direct transfer of energy through space when there is no contact between the two objects.

Thus the heating of the end of the iron fire poker that you are holding though it is not directly in the fire is not due to the motion of the iron atoms.