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Q: What will happens to convection currents when liquid or gas is no longer heated?
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What is the liquid in the pot is being heated by?

Convection currents from the stove or microwave.


What happends to convection currents when the liquid or gas is no longer heated?

It falls back down


Where do convection currents happen?

Convection currents occur in any fluid in which there is a temperature differance. Most convection currents occur in the mantle, the layer of semi-liquid rock below the crust. These currents are the reason behind plate tectonics.


What is a convection current caused by?

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 are caused by changes in density.


Why is there no convection current when the liquid in the test tube is heated at the top?

because convection currents are caused by the liquid being heated, becoming less dense due to increased kinetic energy and rising. if you are heating the top of the test tube, there is nowhere for them to 'rise' to, so no current is formed, as they do not reach a place where they cool and sink to the bottom. thus convection currents are only formed when heating the bottom of a test tube.


What will happen to the convection currents in the mantle if earth's interior cools down?

Convection currents are transferring heat to the surface through the movement of mantle rock. If the interior of the planet cools, the mantle rock would be too solid to move, and there would be no heat to transfer.


What happens to convection currents when the liquid or gas is no longer heat?

Nothing actually happens to convection currents when heat is no longer supplied. The currents are produced by applying heat, most often to the bottom. The warmed fluid is 'lighter' than the cold fluid surrounding so it rises to allow colder fluid to replace it and be heated. As soon as the heat is removed, all the fluid rapidly comes to a single temperature and convevtion does not happen! An opposite effect happens when cold air sits on the surface of a lake. In this case the water at the surface cools, gets 'heavier' and sinks. In this case the convection currents operates downwards.


What two states of matter can occur in convection?

Convection currents are in the liquid and gas states.


Where convection can happen?

convection happens in liquid


How his thermal energy transferred from one to another by convection?

Convection currents occur in liquid. Heat excites the matter near the source and causes it to rise, making nearby matter rush in to fill the space. Then that matter is heated, rises, and so on. A good example of this is the Earth's mantle: heat from the core is dispersed by convection currents.


What type of currents form as hot and cool portion of a liquid or gas move?

Convection currents.


What will happen to the convection currents in the mantle if the Earth's interior cools down?

If Earth's interior cools to a non liquid state, the convection currents will stop.