What is Conduction convection radiation?

Answer 1

Conduction, convection, and radiation are three modes of heat transfer.

• In conduction the energy is transfer by the collision of molecules in adjacent regions - the more energetic molecules from the hotter surface bang against the molecules from the cooler region and impart some of their energy to the cooler ones - thus transferring heat.
• In convection warmer material moves from one are to another where it mixes with the cooler material and raises the average energy (and thus temperature) of the cooler area - conversely if cooler material is moved into a region of higher temperature it can absorb heat from the warmer material.
• In radiative heat transfer, the motion of molecules in their electrical fields cause the emission of electromagnetic radiation which can move through a vacuum until it intersects another mass which can absorb it , increasing the vibrational , rotational and even translational energy of the molecules - thus heat has been transferred.