Question

Describe an experiment to show that air exerts pressure

Answer 1

Hey Friend

✨Experiment 1✨

Take an empty soda bottle with minimum thickness, open the cap. Hold it in the mouth and suck all the air with a vacuum pump. What happens to the bottle ? The shape of the bottle will be altered. Why ? When we suck the air out of it, the air present outside the bottle will exert pressure on the bottle in all possible directions. Therefore the bottle is crushed.

✨Experiment 2✨

Take a thin tin box with a small opening at one end and hear it. When it is heated what happens ? We observe that the shape of the box is altered. Why ? I'm heating the air in the box will reduce and the walls of the box experiences pressure by the surrounding air, altering the shape of the box.

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Answer 2

We have experienced that when we blow a balloon, the balloon becomes tight. If we try to fill more air, then the balloon will burst after an extent. This happens because air exerts pressure

We have also experienced the movement of fringes of windows and doors of our houses when wind blows in a high speed. This also happens because air exerts pressure