WHAT IS HEAT ?
Heat is simply a form of energy that is transferred between objects with different temperatures . It will continue to get transferred between objects until both the objects reach equilibrium ( that is , equal temperature ) .
NOW , IF HEAT WILL BE TRANSFERRED FROM ONE OBJECT TO ANOTHER , HOW WILL IT HAPPEN ?NOW , IF HEAT WILL BE TRANSFERRED FROM ONE OBJECT TO ANOTHER , HOW WILL IT HAPPEN ?
ABOUT CONDUCTION
Conduction is the mode of transmission of heat from one object to another through direct contact . It only takes place when the objects are in contact with each other. It is the slowest mode of heat transfer .
ABOUT CONVECTION
Convection is the mode of transfer of heat due to the movement of molecules . Hot air upsurges as it is lighter and cold air descents as it is heavier .
ABOUT RADIATION
Radiation is the process of heat transfer through electromagnetic waves . It requires no medium and is the fastest mode of heat transfer .
USES OF HEAT
MERITS AND DEMERITS OF HEAT
