What are the types of heat mechanism?

The three primary mechanisms of heat transfer are conduction, convection, and radiation. Conduction occurs when heat is transferred through a solid material via direct contact between particles. Convection involves the transfer of heat through fluids (liquids or gases) as warmer, less dense areas rise and cooler, denser areas sink. Radiation, on the other hand, involves the transfer of heat through electromagnetic waves, allowing energy to move through a vacuum without the need for a medium.