Sunday, July 31, 2011

Definition of Pressure

Pressure is the force exerted on a unit area.
power is a pull or push that can cause objects to change shape and motion. So the pressure is a push or pull acting on the field per unit area.
a. The properties of pressure:
--- Pressure is directly proportional to the compressive force, meaning that the greater the pressure the greater the compressive force is generated.
--- Pressure is inversely proportional to the wide field, meaning that the smaller the wide field, the greater the pressure generated or otherwise.
Mathematically formulated pressure:
P = F / A
Description:
P = pressure unit pascal (Pa)
F = compressive force units (newtons)
A = area press area (m ^ 2)

of the formula can be seen that the pressure is the amount of force exerted (F) divided by broad field of press (A).
Units of pressure include: Pascal or N / m ^ 2 in cgs units dyne / cm ^ 2.