# What forces affect a hot air balloon?

## What forces affect a hot air balloon?

Friction occurs between the moving balloon and the molecules of air it hits as it rises. Both drag and the force of gravity pulling on the mass of the balloon act in a downward force in opposition to the lift. If the lift is greater than the drag and force of gravity, then the balloon rises.

## What are the object that can float on the air?

THINGS THAT FLOAT IN AIR

• Paper.
• Kites.
• Balloons.
• Dust.
• Birds.
• Flies.
• Aeroplane, etc.

## What things are done by moving air?

Air can move things – think of leaves or sand blowing on a windy day. It can speed things up or slow things down (think of cycling a bike with the wind behind you or against you). In olden days large ships had sails and relied on moving air (i.e. wind) to drive them.

## Do any solids float in air?

In the strict sense, no. Aerographite won’t float in air under normal circumstances because the spaces inside it are filled with air and the actual structural parts are denser than air. It’s similar to how a water filled steel ship won’t float on water but a steel ship that isn’t filled with water can float.

## Can feathers float air?

Scientifically if you take then the particles which are lighter than air floats. Various gases, dust particles, micro organisms, pollen grains, feather floats in air.

## How fast does a feather fall in air?

c98 miles per hour, squared Not Quite! d9.8 feet per second, squared Not Quite!

## Will a penny and a feather fall at the same rate?

You might think this would cause the coin to fall faster. But because of the coin’s greater mass, it’s also much harder to accelerate the coin than the feather—50 times harder, in fact! The two effects exactly cancel out, and the two objects therefore fall with the same acceleration.

## Would a brick or feather fall faster?

Galileo discovered that objects that are more dense, or have more mass, fall at a faster rate than less dense objects, due to this air resistance. A feather and brick dropped together. Air resistance causes the feather to fall more slowly.

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