Question

notes of conduction and convention topic​

Answer 1

Conduction is the transfer of heat from the hotter part of the material to its colder part without the actual movement of the particles. What I want to say here is that in the process of conduction there is no net movement of the particles of the body. Heat passes through solids by conduction only.

Thermal conduction plays an important role in our daily life. Some of the practical applications of thermal conduction include:-

(a) Cooking utensils are provided with wooden handles.

(b) Eskimos make double walled houses of the blocks of ice.

Learn more about heat conduction and thermal conductivity.

Convection

Convection involves the bodily movement of the heated molecules. Convection is the process in which heat is transmitted from one place to other by the actual movement of heated particles. It is prominent in the case of liquids and gases. Land and sea breezes are formed due to convection. It also plays an important part in ventilation, electric lamps, and heating of buildings by hot water circulation. The figure below shows the transfer of heat by convection when water in a cooking pot is heated.

Answer 2

CONDUCTION

The transfer of heat or electric energy through matter by communication of kinetic energy from particle to particle with no net displacement of the particles I known as conduction.

CONVECTION

The transfer of heat by the circulation or movement of the heated parts of a liquid or gas is known as convection.