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You're probably looking for "Newton's laws", especially the second. The third law applies
(but so do flippant answers such as explaining the theories).
The fact that hot air is less dense than cold air so with the large volume of hot air in the balloon it wants to rise above the colder more dense air. Think of it like putting a Basketball underwater. The air is less dense than the water and so it will rise to the surface of the water.
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∙ 13y ago
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What kind of heat transfer causes a hot air balloon to rise?
Convection.
How do you make air lighter so that it will cause a balloon to rise?
To make air lighter you would increase the heat inside the balloon, making it less dense, causing it to rise.
Why does a balloon need hot air?
Hot air is less dense compared to cold air. The heated air in the balloon will rise, making the balloon float in the air.to make it rise.
How do you make a balloon rise?
Instead of blowing normal air (your breath, a pump, etc.) into the balloon, you'd use helium to make it float.
Why are hot air balloons able to rise into the air?
The hot air from the burner rises since it has little density, and then is caught in the balloon, which causes it to rise.
What property causes a hot air balloon to rise?
heat
What kind of heat transfer causes a hot air balloon to rise?
Convection.
What chemicals from the periodic table make a hot air balloon rise?
There are many chemicals found in a hot air balloon to make it rise. The main elements/chemicals are Helium and Hydrogen.
Why can air balloon rise to the sky?
it can rise because of the helium and the gases help make it rise to the sky
How do you make air lighter so that it will cause a balloon to rise?
To make air lighter you would increase the heat inside the balloon, making it less dense, causing it to rise.
Why does a balloon need hot air?
Hot air is less dense compared to cold air. The heated air in the balloon will rise, making the balloon float in the air.to make it rise.
How is a hot balloon lifted into the air?
to make a hot air balloon rise you use hot air
What would heating the gas in an air balloon make the balloon rise?
Simple...hot air rises..
The air in hot air balloon is heated to make the balloon rise?
The volume of air increases on its heating hence the balloon rises on heating
Would a hot air balloon pilot heat or cool the air in the balloon to make it rise?
He would heat it.
Why do hot air balloons travel upward?
The heated air causes the whole balloon to rise. When the air inside the balloon cools down, or when the hot air is let out, the balloon goes down.
How do you make a balloon rise?
Instead of blowing normal air (your breath, a pump, etc.) into the balloon, you'd use helium to make it float.
