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hot air rises because molecules of air move quicker
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∙ 13y ago
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Will dry air rise fast?
The reason air rises is tempurture not dryness but as long as it is warm sure :)
Is a hot air balloon lighter or heaver then air?
The actual balloon isn't lighter than air, the only reason hot air balloons rise is because they are filled with hot air, which is lighter and less dense than cold air, causing it to rise. :)
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 can't a balloon rise and leaves earth's atmosphere?
For the same reason that a beach ball can rise high in the water but can't leave the water. A balloon is floating in air. If there is no air around it, then it has nothing to float in.
Why does happen in the atmosphere?
For the same reason that it happens in other fluids. The hot air (in this case) has a tendency to rise, and colder air, to sink, due to differences in density.
How does a hot air balloon use hot air to rise?
Because hot air rises and cool air sinks. the reason why is because hot air is less dense than cool air so the cooler air will sink
Why can't a Kite the quadrilateral have four right angles?
the reason is that the kite would not get any air to help it rise up
Why does convection happen in the atmosphere?
For the same reason that it happens in other fluids. The hot air (in this case) has a tendency to rise, and colder air, to sink, due to differences in density.
What things can effect air to rise?
Heat can cause air to rise :)
When warm air rises what bubbles rise in the air?
Carbon Dioxide CO2 is the bubbles that rise in the air.
Why does hot air or liquid rise?
It will rise because it has less density, so it tends to "float" on the denser, cold, air.The reason it is less dense is because when you heat air, its volume increases. Since density is mass/volume, the density decreases in this case.
Does heated air rise or sink?
rise
