Force acting on unit area is called

Density of an object

The unit of pressure is

To roll forward,there should be a friction between the wheels of a vehicle and

If you are on a swing and your friend pulls it in the direction opposite to its motion, the swing will

The contact force applied without touching it is called

Which one of the following is something that can bring about a change in the state of rest or of motion of a body or a change in its shape or size?

Which is the device used to measure pressure inside a vessel?

If you are cycling, and wind pushes you from behind, your speed will

The force exerted by a liquid on a body immersed fully or partially in it is the