Question

Information about Pressure.​

Answer 1

Question

• Information about Pressure.

Answer

• Pressure is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure is the pressure relative to the ambient pressure. Various units are used to express pressure.
• In SI base units: 1 N/m2, 1 kg/(m·s2), or 1 J/m3
• Derivations from other quantities: p = F / A
• Dimension: M L−1 T−2
• SI unit: Pascal

Answer 2

Required Answer :

⭐ About Pressure ⭐

Definition:

• We can define pressure as effect a force on a given area.

Formula:

As per the definition, it implies that :

• P = F/A

Where,

• P = Pressure
• F = Force
• A = Area

SI unit:

• Pascal (Pa)

Some points to remember:

• More the area, less the pressure will be.
• Less the area more the pressure will be.
• More the force acting, the more the pressure will be.

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Liquid Pressure:

• Pressure also exerts in liquid.

In liquids:

• Greater the height, greater the pressure.
• Greater the density , greater the pressure.
• A liquid exerts pressure in all directions.

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Air pressure:

• Our earth exerts the atmospheric pressure.
• The force exerted by the atmosphere per unit area is called atmospheric pressure.
• Atmospheric pressure is measured by barometer.

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