Pressure

Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure (also spelled gage pressure) is the pressure relative to the ambient pressure.

Various units are used to express pressure. Some of these derive from a unit of force divided by a unit of area; the SI unit of pressure, the pascal (Pa), for example, is one newton per square metre; similarly, the pound-force per square inch (psi) is the traditional unit of pressure in the imperial and US customary systems. Pressure may also be expressed in terms of standard atmospheric pressure; the atmosphere (atm) is equal to this pressure and the torr is defined as ¹⁄₇₆₀ of this. Manometric units such as the centimetre of water, millimetre of mercury and inch of mercury are used to express pressures in terms of the height of column of a particular fluid in a manometer.

Definition

Pressure is the amount of force acting per unit area. The symbol for pressure is p or P. The IUPAC recommendation for pressure is a lower-case p. However, upper-case P is widely used. The usage of P vs p depends on the field in which one is working, on the nearby presence of other symbols for quantities such as power and momentum, and on writing style.

Pressure (disambiguation)

Pressure is an effect which occurs when a force is applied on a surface.

Pressure also may refer to:

Music

Entertainment

Other uses

See also

Pressure (Sunscreem song)

"Pressure" is a 1991 dance single recorded by the British techno group Sunscreem, and written and produced by band members Paul Carnell and lead singer Lucia Holm from the act's 1993 set *O₃. "Pressure" was the group's first single release in the United Kingdom, where it peaked at number 60 on the country's pop chart, but it became a major club hit in the United States in wake of the success of "Love U More", where it was released as "Pressure US" with a new remixed version and went to number one on the dance chart for one week in June 1993, their second of three number ones. The re-released version reentered the UK charts afterwards, peaking at number 19 in 1993.

Track listing

See also

Cruz

Cruz is a surname of Iberian origin, first found in Castile, Spain, but later spread throughout the territories of the former Spanish and Portuguese Empires. In Spanish and Portuguese, the word means “cross,” either the Christian cross or the figure of transecting lines or ways. For example, in the Philippines, the adopted Tagalog word is rendered to “krus” in plain usage, but the Spanish spelling survives as a surname.

The word "Cruz", as well as "Vera Cruz" ("True Cross") and "Santa Cruz" ("Holy Cross") are used as surnames and topological names. Its origin as a surname particularly flourished after the Alhambra Decree of 1492 and the increasing activities of the Spanish Inquisition, when New Christian families with Crypto-Jewish, Moorish, and/or mixed religious heritage converted to the state-enforced religion of Catholicism and subsequently fashioned and adopted surnames with unambiguous religious affiliation.

People with the surname

Cruz (disambiguation)

Real and fictional characters with Cruz as a first or last name. Cruz is a surname of Iberian origin.

Cruz or La Cruz may also refer to:

Places

Brazil:

Chile:

Costa Rica:

Mexico:

Peru:

Portugal:

Cruz, Ceará

Cruz is a city in Ceará, state of Brazil. The city lies on the Acaraú River near the northern Atlantic coast. As of 2010 the population was estimated at 22,479.

References