Question

write activity to show that air exerts pressure

Answer 1

When we blow a balloon, due to pressure it expands ,when it blown more and more it can bursts due to air pressure. this is example of an experiment of air pressure that you can try.

Answer 2

Activity to show that air exerts pressure is as follows -

• Required materials :

- Plastic Straw

- Glass

- Water

• At first, completely fill the glass with water and the water level should reach the upper edge of the glass.

• The take the straw and hold it in the height of 2 centimetres from the water level in the glass.

• Holding the straw in that position,blow air through the straw.

• Observations :

- The water is moving in the spot where the air was blown.

- If the blown air is very strong then the water will fall from the glass.

• Conclusion :

The air does exert pressure. If the air was unable to extert pressure then stationary condition of the water was observed.