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A balloon filled with helium floats and a balloon filled with regular air falls to the ground because helium has less density than air so the air causes the balloon to sink because there are more molecules in it. The helium has less molecules in it so the balloon rises.
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∙ 12y ago
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Does heated air rise or sink?
rise
Is helium used in hot air balloons?
No, it is not. "Regular" air is used, and it is heated. Hot air is less dense than cooler air, and it will rise. If hot air is trapped in an envelope, it will give lift to the envelope and an attached payload.
How does temperature affect air movement?
the hot air will rise and the cool air will sink
Why do helium and hot air balloon's rise?
Because helium is less dense than air, so it rises. Hot air balloons rise because heated air from the burner becomes less dense and therefore rises.
What is the difference between a helium balloon and a hot air balloon?
A helium balloon does not need energy to rise in the air. A hot air balloon needs fuel to rise in air. That is it needs heat energy to rise in air.i love Pizza squares i hope they put helium in then one dayHelium relies on the fact that helium is lighter than air. Hot air balloons rely on the fact that hot air has less volume than cold air and is lighter than the air around it. hot air balloons use hot air to cause the balloon to lift as helium balloons use a special gas to cause lift
Why does a hot air balloon rise when it is heated and sink wen it is cooled?
If it is cooled its gets extremely cold from the helium,and when the heat is in the balloon it keeps it warm when its in the helium
Does heated air rise or sink?
rise
What happen when a balloon is filled with helium?
Helium is lighter than air and a balloon filled with helium may rise up.
Does helium float or sink in air at room temperature?
Helium is lighter than air. So it will float in air.
Will a helium balloon rise in a house?
If the house is filled with regular air - yes. If it isn't, it'll depend on what gasses there is in the house.
Why does a helium balloon float in the air rathen than sink?
because helium is ligter than air
Does helium contract in cold weather and cause a helium balloon to sink and if warmed will it rise again?
Helium will contract in cold weather, but that may not cause a balloon filled with it to sink since the air will also contract - and by about the same amount - so the relative densities of the helium and the surrounding are would remain about the same and the buoyancy of a helium filled balloon would remain
How does helium make a balloon rise when air doesn'?
Helium is lighter than air. So helium balloon rises in air.
Can you inflate a balloon without helium?
You can use air instead of helium, but it will not rise. The reason helium balloons rise is because helium is lighter than air. I am sure other gases can be used also.
Why will a helium filled balloon will float in air?
A Helium filled baloon floats in air because Helium is lighter than air. Making it rise to the top of it.
If air is denser why does helium pop faster?
Because helium is less denser than air a helium balloon can rise; it is very simple !
Does helium rise?
yes honey, that's why hot air balloons rise
