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Hot air is less dense than cool air, therefore hot air rises to the top of the balloon's envelope, which in turn forces the cooler air out of the bottom. Thus the balloon is filled with air that is less dense than the air outside, creating an upward force upon the balloon. With a balloon of sufficient mass, the balloon can carry the burner, a basket, people and ballast (sandbags). By allowing the air to escape from the top of the balloon, the balloon can gradually descend. If the descent is too rapid for the burner to compensate, ballast can be ejected to slow the descent more rapidly.
it floats because the air is pushing it up
Wiki User
∙ 11y ago
Wiki User
∙ 11y agoIt is because helium is 6x lighter then air, therefore helium filled balloons float. Hot air balloons float because hot air rises. (because it's lighter than normal/cold air)
Answer:Hot air balloons are filled with hot air (that's pretty obvious) and are surrounded by cooler air. Cooler air is more dense than hot air so the balloon weighs less than the air it displaces. This gives it a buoyant upward force. This is the same as holding a pop bottle filled with air under water. Let it go and it rises up. As you go higher into the air the air becomes less dense. The balloon will rise until the cool air around it is the same density as the air in the balloon.
Wiki User
∙ 13y agoBecause the gas inside them is less dense than the air around them. When an object is less dense than a fluid (such as air or water) the object will float on the fluid because the buoyant force exerted on the object by the fluid is greater than the force of gravity on the object.
Wiki User
∙ 16y agoBecause hot air rises - therefore the hot air trapped inside of the balloon, that is kept heated hs no where to go - but up.
Nayeli Pelaez
The volume of the air displaced by the balloon is less than the volume of the balloon.
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How hot air baloons are able to float?
hot air baloons are able to fly because the hot air that is released in to the ballon wants to get out so there for it keeps pushing and that is how a hot air balloon floats
In a hot air balloon air is heated by a flamehow does this enable the balloon to float in the air?
Air, like any other substance has weight, that weight is directly related to its density. The warmer the air is the less dense it is therefore the lighter it is. A balloon full of lighter air will float upward just like a piece of wood in a swimming pool, the wood is less dense than the water.
If you wanted to make a balloon float in the air which gas should you use to fill the balloon?
Helium gas is lighter than air and hence balloons filled with helium will float in air.
How do hot air balloons descend?
They have to let out the hot air a little at a time.
Why do noble gases in balloon float in air?
Noble gases are lighter than air. Hence balloons filled with noble gases will float in air.
Why can't a hot air balloon float in outer space?
The key word there is float. There is nothing in space for a hot air balloon to float on.
Why do hot air balloons float in the air?
Hot air rises and the fire in the hot air balloon wants to go up and float in the air and since it's can't escape the balloon the fire just brings the balloon with it to float in the air
Does a hot air balloon need heat or cold air to float?
hot
What makes a hot air balloon float?
A hot air balloon is able to float because the hot air being released into the balloon is less dense than the colder air surrounding it. Basically, the burner under the hot air balloons fills the balloons with hot air, enabling the balloon to rise through the cooler air outside.
Why do hot air balloon float?
Going up!Hot air is actually less dense than cold air. So, in turn the hot air rises causing the balloon to float up.Because hot air has a lower density than cold air, causing hot air to rise. When the hot air is trapped in a balloon, the push of the rising air causes the balloon to float.
How air balloons float?
They are filled with hot air. The hot air raises and take the balloon with it
How does warm air balloons float?
"Warm air", otherwise known as Hot Air Balloons, float because of one basic Law of Thermodynamics; heat rises. The air in a hot air balloon is hot, therefore, the balloon rises.
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.
What happens to a hot air balloon that allows it to float through the air?
Air inside the balloon is heated. Hot air is less dense than the surrounding air, and thus the balloon rises.
Does a hot air balloon float or fly?
a hot air balloons floats. something to do with buoyancy
How does a flame enable a hot air balloon to float?
Because it heats the air and of course the hot air will rise above the cold air causing it to float!
How does a hot air balloon go in the air?
Well it has a gas fueled flame and the flames heat makes the balloon part fill up with hot air. Hot air rises so the hot air balloon will float into the sky like a helium balloon would.
