Utsutomny convection
Which statements best describe convection? Check all that apply.
Convection occurs in solids.
Convection occurs in liquids and gases.
Convection transfers thermal energy.
Convection transfers potential energy.
Convection occurs until all of the fluid is at the same temperature.
Convection occurs only one time, no matter the temperature.

Convection is a type of heat transfer of thermal energy when a fluid, such as air or a liquid, is heated . Heat energy is transferred from hot places to cooler places.

The following statements best describe convection:

Convection occurs in liquids and gases.

Convection transfers thermal energy.

Convection occurs until all of the fluid is at the same temperature.

The convection takes place in the gases and liquids for the transfer of thermal energy. It requires the same temperature throughout the fluid for energy transfer.

Further explanation:

The transfer of heat as a result of the movement of large proportions of molecules together within the fluids is called convection. The fluids can be both gases or liquids. It does not occur in solid particles as the mass movement of current as well as the diffusion of matter is not seen in solids. The process of convection involves non-directional energy transfer called diffusion and bulk flow of heat in a particular direction.

The thermal energy moves through convection and is produced when the molecules or atoms move within the fluid. It can be explained by keeping a glass of liquid with a heat source. The change in temperature can be observed as the warmer water moves towards the cooler areas, maintaining even temperature throughout the liquid.

The mechanism by which heat is transferred due to the bulk movement of molecules is called convective heat transfer. Heat is being carried and dispersed, and therefore, is an object of interest. Convection can be seen on a large scale in the oceans and the atmosphere. It is also used as method of heat transfer between the sun and the stars.

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Answer details:

Grade: Higher secondary

Subject: Biology

Chapter: Convection

Keywords:Convection, thermal energy, heat transfer, solids, gases, liquids, temperature, diffusion, convective heat transfer.