Question

The process by which transfer of heat takes place by the actual movement of particles from one part of the body to another part is called ___________.

• A. conduction
• B. convection
• C. radiation
• D. thermometer

Answer 1

The correct option is B convection

Heat can be transferred in three ways: by conduction, by convection, and by radiation.

• Conduction is the transfer of heat due to vibration of particles about their mean positions. A medium is required for the conduction to take place.
• Convection is the process of heat transfer from one part of a fluid to another part by the actual movement of the particles of the fluid. A medium is required for convection as well.
• Radiation is the process of transfer of heat from one place to another place without heating the intervening medium. No medium is required for radiation.

Hence, the process by which transfer of heat takes place by the actual movement of particles from one part of the body to another part is called convection.

Whereas, a thermometer is an instrument that measures temperature. It can measure the temperature of a solid such as food, a liquid such as water, or a gas such as air.