Question

What is pressure in physics?​

Answer 1

Answer:

Pressure is defined to be the amount of force exerted per area.

Answer 2

Answer :-

The normal force acting on the unit area of a surface is called pressure.

Explanation ::

Pressure: The normal force acting on the unit of area surface. Pressure depends on two factors :-

• Magnitude of force
• Area of contact force

Area of contact: Pressure is inversely proportional to area of contact that is, pressure decreases if the force acts on a larger area and increases when the force acts on smaller area.

Magnitude of force: Pressure is directly proportional to magnitude of force, i.e if more the force, greater is the pressure.

The S.I. unit of pressure is Pascal ( Pa ). One Pascal is equal to the force of one newton acting on area of square metre.

• 1 Pa = 1 Nm·²

More Information

Some more information related to pressure ::-

• The bigger unit of pressure is kilopascal ( kPa ).
• Presence can be represented as :-

Pressure = Force ÷ Area of contact.

• Blaise Pascal conducted experiments on pressure [ Atmospheric pressure ] by constructing barometers and measuring air pressure.