Unit of Pressure

What is Pressure?

When cutting an apple, we should use the sharp edge of the knife rather than the soft edge of the knife since the sharp edge of the knife has a smaller surface area and requires less power with high pressure to cut the apple. When we drive a nail into a wooden board, we keep the pointed end of the nail in front. The pointed end of the nail has a relatively tiny surface area, allowing us to apply more pressure with the same amount of effort....

Pressure Formula

Pressure acting on a body is the ratio of the perpendicular force to the surface area of the object. The formula that is used to calculate the pressure acting on an area is,...

Unit of Pressure

SI unit of Pressure is Pascal (Pa). Pascal is defined as the force of one newton applied over a surface area of a one-meter square. The dimension formula of pressure is [ML-1T-2]...

Types of Pressure

There are various types of pressure but it can be broadly categorized into four categories....

Factors Affecting Pressure

Pressure depends on the surface area over which the force is applied, the larger the surface area the smaller the pressure applied and the smaller the surface area larger the pressure applied. Thus, we conclude that pressure is inversely proportional to the surface area over which the force is applied....

Pressure Exerted by Liquid and Gas

Liquids pressure is also called Fluid pressure. Liquid generates pressure on the walls of the container they are placed in. The pressure exerted by a liquid on the bottom of a container is proportional to the liquid’s height in the container. The liquid exerts identical pressure on various spots on the same-depth container walls. Similarly, gases put pressure on the container’s walls. The molecules of gas with higher kinetic energy smash with walls with great force, and as a result, these molecules exert pressure on the container’s walls....

Atmospheric Pressure

Atmosphere is the envelope of air that surrounds us. Atmospheric air rises hundreds of kilometers above the earth’s surface. Pressure exerted by this air is known as atmospheric pressure....

Pressure on Walls of a Container

The container filled with liquid experience pressure which depends upon the height of the water filled in the container. Similarly, the value of pressure experienced by the side walls of the container depends upon the volume of liquid above it. Also, the pressure at any level is the same as the volume of the liquid above that level is always same. Pressure exerted by the liquid on various levels is shown in the image below,...

Example on Pressure Formula

Example 1: If the force of 10 N acts on an area of 2 m2. Find the pressure acting on that area....

Practice Questions on Pressure Formula

Q1. Find is the force acting on the body of the pressure acting is 22 pascal and its surface area is 11 cm2?...

FAQs on Pressure

1. What is Blood Pressure?...