Question

1)Describe an activity by which you can show that air has weight. 2)Describe a simple experiment to show that air exerts pressure.​

Answer 1

Answer:

For the Ist case

You can simply blow air in a balloon and drop it. The balloon will reach the group in few seconds(The balloon should not experience any kind of resistance). This experiment shows that air has weight.

For the IInd case

Again blow air in a balloon and apply force at the two sides of the balloon and balloon exert a force towards you. This experiment shows that air exerts force.

Answer 2

Answer:

1. In the balloon balance experiment, we are blowing up balloons. When blow-up balloons, the air is entering inside them and making the balloons expand. So, this shows that the air occupies space which eventually proves that it has weight.

2. EXPERIMENT : Take a tin-can having air tight cap (screw cap). Remove cap and boil some water in it, so that steam comes out and in this way air from inside goes out. ... We see the can crumbles due to air pressure from outside. This proves that air exerts pressure.

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