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When a fluid is heated, it expands. This is because the particles within the fluid gain energy and move more rapidly, increasing the distance between them. The expansion of the fluid is often accompanied by a decrease in density.

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1y ago

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What causes a heated fluid to rise?

Heated fluid rises due to the process of convection, where the warmer fluid becomes less dense and therefore more buoyant than the surrounding cooler fluid. This buoyancy creates an upwards force, causing the heated fluid to rise while the cooler fluid sinks to replace it.


When air is heated the gases speed up and?

expand, causing the air to become less dense and rise.


Do liquids expand uniformly with rise in temperature?

No, liquids do not always expand uniformly with temperature. Generally, liquids expand as they are heated, but the expansion may not be uniform due to factors such as the specific properties of the liquid and the conditions under which it is heated.


Do molecules rise or sink after they are heated?

When molecules are heated, they increase in kinetic energy and tend to rise due to decreased density. This is because as a substance is heated, its molecules spread out and become less dense, causing them to rise in a fluid medium such as air or water.


What is the word Transfer of thermal energy when particles in a heated fluid rise?

Convection.


Why does heat rise in a fluid or gas?

Heat rises in a fluid or gas because when the fluid or gas is heated, its molecules gain energy and move faster, causing them to spread out and become less dense. This decrease in density makes the heated fluid or gas less heavy than the surrounding cooler fluid or gas, causing it to rise.


Why doesnt convection occur when a beaker is heated at the top?

Convection occurs when heated fluid rises and cooler fluid sinks, creating a continuous circulation. If a beaker is heated at the top, the heated fluid near the top would rise but due to cooler fluid at the bottom, the circulation does not sustain itself, thus preventing convection from occurring.


Oil expand or contract when heated?

Oil does expand when heated and contracts when cooled.


What happens to the heated fluid if it is warmer than the fluid around it?

If the heated fluid is warmer than the fluid around it, it will generally rise due to its lower density. This movement is known as natural convection, where the warmer fluid displaces the cooler fluid and creates circulation in the system.


Why does the substance in the column of the thermometer go up when it is heated?

When the substance in the column of a thermometer is heated, its temperature increases. As the temperature increases, the particles in the substance move more energetically and spread out, causing the substance to expand and rise up the column. This expansion is what causes the fluid to rise and indicate a higher temperature reading on the thermometer.


Does matter expand or contract when it is heated?

Expand


When a fluid increases does its particles occupy less space?

Liquids, solids and gasses EXPAND when heated- the particles occupy more space.