PRACTICAL COMPONENTS
PRACTICAL COMPONENTS
Practical components for the second year BEd student teachers was held on 19/02/2019
TRANSFER OF HEAT
TRANSFER OF HEAT We have learn that heat always flows from a higher temperature to a lower temperature. There are three different ways in which heat is transferred from one body to the other. They are, 1)Conduction 2)Convection 3) Radiation CONDUCTION : Heat flows from one object to other. When they are in contact with each other. For example, a metal spoon left in hot water absorbs heat from the water and becomes hot.If you touch the metal spoon now you will feel the heat. CONVECTION : When fluids are heated the molecules closer to the source of heat get heated first and expand.Thereby decreasing the density of the liquid. The lighter molecules comedown. This is called convection. RAD...
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