Question

(3) How can you increase of decrease pressure acting
on a body​

Answer 1

Answer:

To increase pressure - increase the force or reduce the area the force acts on. To cut up your dinner you can either press harder on your knife or use a sharper one (sharper knives have less surface area on the cutting edge of the blade). To reduce pressure - decrease the force or increase the area the force acts on

Answer 2

Answer:

The pressure exerted by the gas can be increased by: increasing the number of collisions

Explanation:

increasing the number of collisions of gas molecules per unit time by increasing the number of gas molecules; increasing the kinetic energy of the gas by increasing the temperature; or decreasing the volume of the container.