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The pascal (symbol: Pa) is the unit of pressure in the International System of Units (SI). It is also used to quantify internal pressure, stress, Young's modulus, and ultimate tensile strength. The unit, named after Blaise Pascal, is an SI coherent derived unit defined as one newton per square metre (N/m 2 ). [1]
- Blaise Pascal
Blaise Pascal (/ p æ ˈ s k æ l / pass-KAL, also UK: /-ˈ s k...
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Pressure is the amount of force applied perpendicular to the...
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Pascal (unit), the SI unit of pressure; Pascal (programming...
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- Blaise Pascal
The pascal (symbol: Pa) is the SI-derived unit of pressure or stress. It is a measure of perpendicular force per unit area and is equal to one newton per square meter. In everyday life, the pascal is best known from meteorological air-pressure reports, where it happens in the form of hectopascal (1 hPa = 100 Pa).
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A pascal is a pressure of one newton per square metre, or, in SI base units, one kilogram per metre per second squared. This unit is inconveniently small for many purposes, and the kilopascal (kPa) of 1,000 newtons per square metre is more commonly used.
- The Editors of Encyclopaedia Britannica
Pascal's law (also Pascal's principle or the principle of transmission of fluid-pressure) is a principle in fluid mechanics given by Blaise Pascal that states that a pressure change at any point in a confined incompressible fluid is transmitted throughout the fluid such that the same change occurs everywhere.
Pascal's law is a law about the physics of a fluid. It says that if pressure is exerted on a non compressible fluid in an enclosed vessel, this pressure will be distributed evenly throughout the fluid. It is named after Blaise Pascal who discovered it in 1647.
p is the pressure in pascals, symbol Pa, F is the force applied in newtons, symbol N, A is the area in square metres, symbol m 2. Meteorology. In weather forecasts, atmospheric pressure is measured in hectopascals, symbol hPa. The hectopascal is equivalent to the non-SI unit millibar, symbol mbar.
