Question

with the help of example demonstrate that air exerts pressure.

Answer 1

when air is exerted into a balloon it expand in size.this shows that air exert pressure in balloon

Answer 2

Examples to show that air exerts pressure

1. When air is pumped inside a balloon, it expands in size. this shows that aor inside exerts pressure on the walls of the balloon.

2. Blow up two balloons and attach a piece of string to each. Hold one balloon by the string in each hand and position the two balloons so that they are at your nose level and 6 inches apart. Blow hard into the space between the balloons. This lowers the air pressure. The pressure of the surrounding air is now higher and it will push the balloons together.

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