What Is a Convection Current?


Convection currents are continuous movements of water caused by the expansion of the water as its temperature rises. These currents arise in the atmosphere above warm land masses or seas, giving rise to sea breezes and land breezes, respectively.
Q&A Related to "What Is a Convection Current"
Convection currents occur when the sea is warmer than the land around it. The transfer of heat by the mass movement of heated particles into an area of cooler fluid causes the currents
The sun drives convection in the atmosphere and, to a lesser extent, in the oceans. Heated air rises in convection currents from the Earth's surface in columns called "thermals
The liquid or gas which transfers the heat. can circulate round and round between the hot and cold regions. The flow of liquid or gas is called a convection current. Convection currents
Convection is: the circulatory motion that occurs in a fluid at a
7 Additional Answers
Ask.com Answer for: what is a convection current
What Are Convection Currents?
Convection currents transfer heat from one place to another by mass motion of a fluid such as water, air or molten rock. The heat transfer function of convection currents drives the earth's ocean currents, atmospheric weather and geology. Convection is... More »
Difficulty: Easy
Source: www.ehow.com
Convection currents are circular movements in a fluid that are caused by expansion of masses of the fluid due to changes in temperature and density. The denser masses tend to move downwards and the less dense masses move upwards above the lighter masses.
Convection currents are circular movements that occur when a fluid is not uniformly heated so that part of the fluid rises, then cools and then sinks. It occurs as a result of alteration in the density of a substance when heated or cooled.
Convection currents occur when there is difference in temperature causing fluid material to move. The expanded material, being less dense, rises, while colder, heavier material sinks thus making heating systems to use convection currents to carry hot water upwards in pipes.
Convection current is the term for a current that is caused by the expansion of a liquid, gas or solid as its temperature increases. In geography, convection currents usually form above warm land masses or seas and this is what results in sea breezes or land breezes.
A convection current is a current caused by the expansion of a liquid, solid or gas as its temperature rises. Convection currents arise in the atmosphere above warm land masses or seas resulting in land and sea breezes. In some heating systems, convection currents are used to carry water upwards in pipes.
Convection current is when molecules, such as gases and liquids, move because of heating and cooling of the molecules. You can experience this when a heater heats up a room.
Explore this Topic
Convection currents in the ocean help move warm and cold water around. This affects weather on the land and air temperature. It also has a major effect on weather ...
Density is the fraction between an element's mass and the capacity of space it occupies. Less dense air rises. Warm air rises; cold air sinks shows that warm air ...
Convection currents are caused by an uneven temperature within something. Convection currents happen within the Earth's magma, water and air. It can happen in ...
About -  Privacy -  Careers -  Ask Blog -  Mobile -  Help -  Feedback  -  Sitemap  © 2014 Ask.com