state two experiences that made you think that air exerts pressure
Answers
Answer:
Water glass trick: fill a glass with one third water and place a cardboard to cover up the entire mouth of the bottle or glass.
Then shake the bottle few times and leave the cardboard.
The air pressure will hold the cardboard for at least 15 seconds automatically.
Similarly, you can experiment with fountain bottle and fill the bottle with half full water and use straw to hold the air pressure into it.
Even you can also find the air pressure extract automatically in ping pong ball and kissing balloons.
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Explanation:
Answer:
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