Heat Transfer
Radiation, Convection and Conduction
Conduction
Heat can be transferred by conduction When an object is heated, the particles in the object begin to vibrate. These vibrations are passed on through the object, transferring the heat from one end to the other.
Convection
Heat can be transferred from one place to another via convection. In convection hotter particles rise and cooler particles fall circulating heat. Convection above a hot surface occurs because hot air expands, becomes less dense, and rises again and again.
Radiation
Radiation is the transfer of heat energy from one place to another using invisible waves. All objects give out heat via radiation but hot objects radiate more heat than cool objects. Dark objects radiate more heat than dark objects.