Prab: CSV import

2025-02-13T03:41:16Z

CSV import

← Older revision		Revision as of 03:41, 13 February 2025
Line 1:		Line 1:
	'''~~Pascal~~''' (symbol: Pa) is the [[SI derived unit]] of [[pressure]] used to quantify internal pressure, ~~[[stress (mechanics)\|~~stress]], [[Young's modulus]], and [[ultimate tensile strength]]~~. The unit~~, ~~named after the~~ French mathematician, physicist, and inventor [[~~Blaise Pascal~~]], is defined as one [[newton]] per square [[metre]].		{{short description\|Unit of pressure in the International System of Units}}
			{{other uses}}

			== Pascal (unit) ==
			The '''pascal''' (symbol: Pa) is the [[SI derived unit]] of [[pressure]] used to quantify internal pressure, stress, Young's modulus, and ultimate tensile strength. It is named after [[Blaise Pascal]], a French mathematician, physicist, and inventor.

			[[File:Psidial.jpg\|thumb\|right\|A diagram illustrating pressure in a fluid.]]

			One pascal is defined as one [[newton]] per square [[metre]]. It is a measure of force per unit area, and is used to describe the magnitude of pressure in a system. The pascal is widely used in various fields, including [[engineering]], [[meteorology]], and [[medicine]].

	== Definition ==		== Definition ==
	~~One~~ pascal is defined as ~~the pressure of one [[newton]] per square [[metre]]. Mathematically, it is expressed as:~~		The pascal is defined as:
	: ~~1 Pa = 1 N/m²~~

	=~~= History ==~~		: 1 Pa = 1 N/m_
	~~The unit~~ is ~~named after~~ [[~~Blaise Pascal~~]], ~~who made significant contributions to~~ the ~~understanding~~ of [[~~fluid mechanics~~]] and [[~~hydrostatics~~]]~~. The pascal was adopted as~~ the SI unit of ~~pressure in 1971~~.
			where N is the [[newton]], the SI unit of [[force]], and m_ is the square [[metre]], the SI unit of [[area]].

	== Applications ==		== Applications ==
	The pascal is widely used in various fields, including [[meteorology]], [[engineering]], and [[material science]]. In meteorology, atmospheric pressure is often measured in hectopascals (hPa), where 1 hPa = 100 Pa. In engineering, the pascal is used to measure [[stress (mechanics)\|stress]] and [[Young's modulus]].

	== ~~Common Multiples~~ ==		=== Engineering ===
	~~Due~~ to the ~~small size~~ of the ~~pascal~~, it is often ~~expressed~~ in ~~multiples:~~		In [[engineering]], the pascal is used to measure [[stress]] and [[strain]] in materials. It is also used in the design and analysis of [[structures]] to ensure they can withstand the forces they encounter.
	* 1 kilopascal (~~kPa~~) ~~= 1~~,~~000 Pa~~
	* 1 ~~megapascal (MPa)~~ = ~~1,000,000~~ Pa		=== Meteorology ===
	* 1 gigapascal (GPa) = 1,~~000,000,000 Pa~~		In [[meteorology]], atmospheric pressure is often measured in hectopascals (hPa), where 1 hPa = 100 Pa. This unit is commonly used in weather reports and forecasts.

			=== Medicine ===
			In [[medicine]], the pascal is used to measure [[blood pressure]] and other physiological pressures. It is important for understanding the forces exerted by fluids within the body.

	== Related ~~Units~~ ==		== Related units ==
	~~Other~~ units of pressure ~~include~~ the [[~~bar (unit)\|~~bar]], ~~the~~ [[atmosphere (unit)\|atmosphere]], and ~~the~~ [[torr]]. ~~The pascal is related to these~~ units ~~as follows:~~		The pascal is related to other units of pressure, such as the [[bar]], [[atmosphere (unit)\|atmosphere]], and [[torr]]. These units are often used in specific contexts or industries.
	* 1 bar = 100,000 Pa
	* 1 atmosphere = 101,325 Pa
	* 1 torr ≈ 133.~~322 Pa~~

	== ~~See Also~~ ==		== Related pages ==
	* [[Pressure]]		* [[Pressure]]
	* [[Stress (mechanics)]]
	* [[Young's modulus]]
	* [[Ultimate tensile strength]]
	* [[Blaise Pascal]]		* [[Blaise Pascal]]
			* [[Newton (unit)]]
	* [[SI derived unit]]		* [[SI derived unit]]
	* [[Newton (unit)]]

	~~== References ==~~
	~~{{Reflist}}~~

	[[Category:Units of pressure]]		[[Category:Units of pressure]]
	[[Category:SI derived units]]		[[Category:SI derived units]]
	~~[[Category:Mechanical engineering]]~~
	~~[[Category:Physics]]~~
	~~[[Category:Fluid mechanics]]~~

	~~{{SI-units}}~~
	~~{{Physics-stub}}~~

Prab: CSV import

2024-05-22T17:42:09Z

CSV import

New page

'''Pascal''' (symbol: Pa) is the [[SI derived unit]] of [[pressure]] used to quantify internal pressure, [[stress (mechanics)|stress]], [[Young's modulus]], and [[ultimate tensile strength]]. The unit, named after the French mathematician, physicist, and inventor [[Blaise Pascal]], is defined as one [[newton]] per square [[metre]].

== Definition ==
One pascal is defined as the pressure of one [[newton]] per square [[metre]]. Mathematically, it is expressed as:
: 1 Pa = 1 N/m²

== History ==
The unit is named after [[Blaise Pascal]], who made significant contributions to the understanding of [[fluid mechanics]] and [[hydrostatics]]. The pascal was adopted as the SI unit of pressure in 1971.

== Applications ==
The pascal is widely used in various fields, including [[meteorology]], [[engineering]], and [[material science]]. In meteorology, atmospheric pressure is often measured in hectopascals (hPa), where 1 hPa = 100 Pa. In engineering, the pascal is used to measure [[stress (mechanics)|stress]] and [[Young's modulus]].

== Common Multiples ==
Due to the small size of the pascal, it is often expressed in multiples:
* 1 kilopascal (kPa) = 1,000 Pa
* 1 megapascal (MPa) = 1,000,000 Pa
* 1 gigapascal (GPa) = 1,000,000,000 Pa

== Related Units ==
Other units of pressure include the [[bar (unit)|bar]], the [[atmosphere (unit)|atmosphere]], and the [[torr]]. The pascal is related to these units as follows:
* 1 bar = 100,000 Pa
* 1 atmosphere = 101,325 Pa
* 1 torr ≈ 133.322 Pa

== See Also ==
* [[Pressure]]
* [[Stress (mechanics)]]
* [[Young's modulus]]
* [[Ultimate tensile strength]]
* [[Blaise Pascal]]
* [[SI derived unit]]
* [[Newton (unit)]]

== References ==
{{Reflist}}

[[Category:Units of pressure]]
[[Category:SI derived units]]
[[Category:Mechanical engineering]]
[[Category:Physics]]
[[Category:Fluid mechanics]]

{{SI-units}}
{{Physics-stub}}

Pascal (unit) - Revision history

Prab: CSV import

Prab: CSV import