Question

Give reasons:
Place a crumpled piece of paper on the mouth of an empty bottle and it comes outside when

you blow air inside the bottle.​

Answer 1

Answer:

We noticed that air has a lower pressure when it's moving more quickly. As you blow into the mouth of the bottle the air is moving fastest - so is at the lowest pressure. Inside the bottle, the air is moving more slowly - so a higher pressure. As the pressure is higher inside the bottle than in the mouth this pushes the paper out!

Explanation:

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Answer 2

when we blow air inside a bottle, the crumpled piece of paper falls out due to application of pressure by air. We know that when we blow air inside a bottle, we accumulate air inside the bottle, the air pushes the inner lining of bottle. The bottle being firm enough does not break easily but the crumpled paper is pushed out due to less turgidity and weight in accordance with the bottle. At a point the air inside the limited amount of space in the bottle becomes so dense that it pushes the crumpled paper out.

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