Let’s check few examples, from Bar to psi conversion or psi to bar conversions. Unit Conversions of Pressure Bar to PSI or PSI to Bar 1 PSI means 1 lbf force is applied in 1 inch2 area. Hence, PSI is the unit of pressure in F.P.S Unit. Now, the unit of P = Unit of Force (F.P.S Unit) / Unit of area (F.P.S Unit) = lbf / inch 2 (F.P.S Unit) This lbf/inch 2 is known as pounds per square inch (psi). 1 bar means 1 dyn force is applied in 1 cm 2 area. Hence, bar is the unit of pressure in the C.G.S Unit. Now, unit of P = Unit of Force (C.G.S Unit) / Unit of area (C.G.S Unit) = dyne / cm 2 ((C.G.S Unit) This dyn/cm 2 is known as bar. Pa is applied for very small, normally kPa is used. Hence, Pa is the unit of pressure in the S.I Unit.ġ Pa means 1 N force is applied in 1 m 2 area. Unit) This N/m 2 is known as Pascal (pa). P = F/A Now, the unit of P = Unit of Force (S.I Unit) / Unit of area (S.I Unit) = N / m 2 ((S.I.
If the area is large, the pressure is more.If the area is small, the pressure is more.Pressure depends on force and the area,.The pressure is used to measure the amount of force acts in an area.Force is applied perpendicular to the surface area.The mathematical equation for pressure can be written as: P= F/A = mg/AĪlthough the normal force is a vector quantity, the pressure is a scalar quantity (vector page). Pressure can be defined as force per unit area which is applied perpendicular to the surface of the object. For a bowling pin, the area of a bowling pin is large, it will not be able to move and we say, the pressure is less. For the sharp nail, the area of application is very less and it moves and we say, the pressure is more. The pressure is related to force and area and it is expressed as the amount of force applied per area. Hence, the are two factors that determine, whether pins will move into the wood or not, The concept of pressure comes related to force and the area. What do you think, what may be the reason for this different behavior even the magnitude of the force is the same? It is nothing but an area of application. If apply the same amount of force, both the pins act differently. In both cases, we apply force on the head of the pin by the hammer. If we analyze, we will see the following two things: 1) Bowling pin- not able to enter into the wood 2) Sharp pin – easily able to enter the wood. Why this different behavior? Because of pressure! Pressure Understanding Don’t you think it will not enter? Yes, it will enter into the wall.