Our atmospheric pressure is the pressure at any given point in the Earth's atmosphere. In most circumstances atmospheric pressure is closely approximated by the hydrostatic pressure caused by the weight of air above the measurement point.
Formula: Pressure p = force F / area A
Pressure p in pascals (Pa)
Force F in newtons / square meters (m²)
Area A in sqare meters (m)
The standard atmosphere, symbol: atm, is a unit of pressure and is defined as being precisely equal to 101325 pascals.
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The area over which a force acts, is proportional to the pressure. When the area is large then, the pressure acted on it is also large, so the force is greater.
This is comparable to two people pushing an object in opposite directions; if one pushes with more force than the other, the object will move in that direction (the direction in which more force is applied).Note that pressure is force per unit area.
Pressure is an effect which occurs when a force is applied on a surface.Mathematically pressure is: p = F / Awhere: * p is the pressure,F is the normal force,A is the area.
input pressure X area = output pressure X area
Force over Area= Pressure