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It is because hot air is lighter than cool air. Because it has less mass per volume unit, the hot air needs to be propelled upwards into the fabric using the burner. To lift 1000 pounds of weight, you'll need about 65000 cubic feet of heated air. They simply float with the wind and are not directed, until the pilot lands the balloon.
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Does air resistance keep a hot air balloon in the air?
No, hot air balloons are kept up in the air by buoyancy, the same thing that keeps helium balloons up in the air, or that keeps ships afloat. The hot air in the balloon is less dense than the surrounding air, so the balloon weighs less than the air it displaces, at least while the balloon is rising.
What science forces are involved in making a hot air balloon?
The force that lifts a hot air balloon is called buoyancy.
What force makes a hot air balloon rise up into the air?
The upthrust exerted by surrounding air on the balloon.
What force does a hot air balloon use to keep itself in the air?
air pressure
What are the two forces that affect a hot air balloon?
The downward force of gravity, and the upward buoyant force resulting from the low density air inside the balloon.
What force brings a hot air balloon to earth after the hot air is let out?
Erm.. no.. i believe its Buoyancy... this force causes u the hot air balloon to rise.. not Gravity..
Does gravity affect a hot air balloon?
Yes. Without gravity, a hot air balloon would rise infinitely. You could never return to the ground. Balloons tend to hover more or less. The force of the air pushing up on the balloon and the force of gravity pulling down on the balloon are usually very close to one another. This keeps the balloon at a steady height, unless you heat the air in the balloon, or let it cool.
What keeps a hot air balloon aloft?
Hot air is lighter. See the related link.
Does air resistance keep a hot air balloon in the air?
No, hot air balloons are kept up in the air by buoyancy, the same thing that keeps helium balloons up in the air, or that keeps ships afloat. The hot air in the balloon is less dense than the surrounding air, so the balloon weighs less than the air it displaces, at least while the balloon is rising.
What keeps air balloon inflated?
If you mean a hot air balloon, it is the expansion of the air caused by the propane burner. If you mean any balloon, it is the ability of the material to hold the air or gas inside which keeps it inflated.
What science forces are involved in making a hot air balloon?
The force that lifts a hot air balloon is called buoyancy.
What force makes a hot air balloon rise up into the air?
The upthrust exerted by surrounding air on the balloon.
How does hot air balloon work?
the balloon works with the poplo force forcing it up
What force brings the balloon to earth after the hot air is let out?
Force of gravity
What force does a hot air balloon use to keep itself in the air?
air pressure
What keeps hot air balloons aloft?
the hot air inside the balloon is what's keeping the balloon aloft. the explanation is hot gases or air is lighter than cold air so hot air will rise since it is lighter than the cold air.
What are the two forces that affect a hot air balloon?
The downward force of gravity, and the upward buoyant force resulting from the low density air inside the balloon.
