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An envelope is the bag in which the hot air is trapped ito to give the balloon lift.

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10y ago

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What is the name of the sand bag dropped for a air balloon?

I believe the word you're looking for is Ballast.


What is a hot air balloon?

At the end of a hot air balloon flight the heated air inside is allowed to escape through a panel that is opened either in the top or side of the balloon envelope. The crew then squeezes the remaining air our of the envelope and then packs it away in a large bag ready for the next flight. This process is called deflating the balloon


What is a deflated hot air balloon?

At the end of a hot air balloon flight the heated air inside is allowed to escape through a panel that is opened either in the top or side of the balloon envelope. The crew then squeezes the remaining air our of the envelope and then packs it away in a large bag ready for the next flight. This process is called deflating the balloon


Why a hot air balloon rises up when it lights its burner?

When you light the burner of a hot air balloon, the balloon itself, the big bag-like part, fills with hot air which is less dense than the air in the surrounding atmosphere. The air being less dense inside means the molecules are spread apart further that normal, so it rises and, being inside the bag-like part of the balloon, it brings the balloon, the basket, and the basket's contents with it.


A sand bag is drooped froma hot air balloon and the balloon rises explain why this happens?

As the sandbag is dropped from the hot air balloon, the overall mass of the system (balloon + sandbag) decreases. This causes the average density of the system to lower, leading to a buoyant force greater than the gravitational force acting on the system, resulting in the balloon rising.