answersLogoWhite

0

Conduction - a teaspoon dipped in hot water

When one end of a rod is heated, the atoms [in the rod above the flame] vibrate faster, bump into the neighbouring atoms and start them vibrating. In this way, the atoms conduct heat from the hot end to the cool end. But during the process, the atoms themselves do not move from one end of the rod to the other.

Similarly, heat can be transferred between two bodies e.g., from a hot drink into and along a metal spoon.

Conductionis the transfer of heat as a result of the direct contact of rapidly moving atoms through a medium or from one medium to another, without movement of the media.

Materials that allow heat to travel through them in this way are called conductors. Metals are good conductors of heat. Non-metals such as plastic, clay, wood and paper are poor conductors of heat; they are also called insulators.

Convection - a pot of boiling water

Convection occurs when a liquid or gas is in contact with a solid body at a different temperature and is always accompanied by the motion of the liquid or gas. In the kettle, hot water rises and cold water descends until all the water is at the same temperature. In the atmosphere, convection results in the movement of hot and cold air ... winds!

Convection is the transfer of heat by the physical movement of the heated medium itself. Convection occurs in liquids and gases but not in solids.

Radiation - how the sun's heat reaches the Earth's surface

The sun cannot transfer heat to earth by conduction [because there is no physical contact with the earth] or convection [because there is no liquid or gas between them]. The sun heats our earth by radiation which does not require contact or the presence of any matter between them.

Radiation is the transfer of heat in the form of waves through space [vacuum]. Dull black surfaces are better than white shining ones at absorbing radiated heat.

An electric heater transfers heat by radiation [directly radiating its heat energy] as well as by convection. In convection, heated air near the heater rises and is replaced by cooler air and the cycle repeats thus warming up the entire room.

User Avatar

Kyla Klocko

Lvl 13
3y ago

What else can I help you with?

Related Questions

Describe three ways heat can be transferred in a boiler?

what are the 3 ways to transferred heat into a boiler


Heat can be transferred by what?

There are three ways in which heat can be transferred from one surface to another. These three ways are conduction, convection and radiation.


How can energy be transferred in three different ways?

Energy can be transferred in three ways: through conduction, where heat is transferred through direct contact between objects; through convection, where heat is transferred through the movement of fluids or gases; and through radiation, where heat is transferred through electromagnetic waves.


What are three ways is heat transferred?

conduction,convection ,and radiation


What are the three ways heat is transferred in the atmosphere?

convection, conduction, and radiation


How many ways can heat transfer?

Three. Conduction, convection and radiation.There are three ways heat can be transferred. Two ways include convection and radiation. The third way is conduction.


Can Heat can be transferred by only by radiation?

No, heat can be transferred by three methods: conduction (transfer through direct contact), convection (transfer through fluids like air or water), and radiation (transfer through electromagnetic waves). Radiation is just one of the ways heat can be transferred.


What are three ways that heat is transferred through the atmosphere?

Radiation, convection and conduction


What are the three ways that heat is transferred?

formal, material, and final


What are three ways in which energy can be transferred through heat?

Conduction, convection, and thermal radiation.


Three ways by which heat is transferred?

Heat can be transferred through conduction, where heat is transferred through direct contact between materials; convection, where heat is transferred through the movement of fluids or gases; and radiation, where heat is transferred through electromagnetic waves without the need for a medium.


How many types of heat transfer are there?

Three. Conduction, convection and radiation.There are three ways heat can be transferred. Two ways include convection and radiation. The third way is conduction.