File:Pressure_exerted_by_collisions.svg · Wikimedia Commons · See Wikimedia Commons

EntityQ39552· pop 120· linked from 2,392 articles

pression

propriété physique

AI overview

Pressure is the force pushing down on a surface, spread out over an area—think of how your weight distributes across your feet versus across the tip of a needle. Understanding pressure matters because it helps explain everyday phenomena, from why sharp objects pierce easily to how air and liquids behave in different situations.

AI-generated from the Wikipedia summary — may contain errors.

In the Vinony graph

Vinony's link graph records 2,392 inbound references to pression, and connects out to pressure measurement, International System of Units and viscosity.

It is catalogued under topics including Atmospheric thermodynamics, Fluid dynamics and Fluid mechanics.

Vinony links it to 115 Wikipedia language editions.

Key facts

Physical quantity.name: Pressure
Physical quantity.image: Pressure exerted by collisions.svg
Physical quantity.image_size: 250px
Physical quantity.caption: Pressure exerted by particle collisions inside a closed container. The collisions that exert the pressure are highlighted in red.
Physical quantity.unit: pascal (Pa)
Physical quantity.baseunits: kg⋅m⋅s
Physical quantity.symbols: ,
Physical quantity.dimension: \mathsf{M} \mathsf{L}^{-1} \mathsf{T}^{-2}

via Wikipedia infobox

Research

1,556,032 papers

Cells under pressure - the relationship between hydrostatic pressure and mesenchymal stem cell chondrogenesis.ReviewEuropean cells & materials · 2019Pattappa G, Zellner J, Johnstone B et al.DOI: 10.22203/eCM.v037a22
Pressure measurement characteristics of a micro-transducer and balloon catheters.Physiological reports · 2021MacAskill W, Hoffman B, Johnson MA et al.DOI: 10.14814/phy2.14831
Pressure-induced shape-shifting of helical bacteria.Soft matter · 2023Pastrana CL, Qiu L, Armon S et al.DOI: 10.1039/d2sm01044e
Pressure breathing in fighter aircraft for G accelerations and loss of cabin pressurization at altitude--a brief review.ReviewCanadian journal of anaesthesia = Journal canadien d'anesthesie · 2003Lauritzsen LP, Pfitzner JDOI: 10.1007/BF03021042
Esophageal pressure as estimation of pleural pressure: a study in a model of eviscerated chest.BMC anesthesiology · 2024Florio G, Carlesso E, Mojoli F et al.DOI: 10.1186/s12871-024-02806-0
Internal fluid pressure influences muscle contractile force.Proceedings of the National Academy of Sciences of the United States of America · 2020Sleboda DA, Roberts TJDOI: 10.1073/pnas.1914433117
Pressure-induced changes on the morphology and gene expression in mammalian cells.Biology open · 2021Okamoto K, Watanabe TM, Horie M et al.DOI: 10.1242/bio.058544
High pressure endoscopic irrigation: impact on renal histology.International braz j urol : official journal of the Brazilian Society of Urology · 2021Loftus C, Byrne M, Monga MDOI: 10.1590/S1677-5538.IBJU.2020.0248

via PubMed

Wikidata facts

Image: Pressure exerted by collisions.svg

Show 7 more facts

Commons category: Pressure
topic's main category: Category:Pressure
different from: mechanical stress
on focus list of Wikimedia project: Wikipedia:Vital articles/Level/4
Stack Exchange tag: physics.stackexchange.com/tags/pressure
maintained by WikiProject: WikiProject Mathematics
invariant under: isobaric process

Sources (5)

via Wikidata · CC0

Article · Français

La pression est une grandeur physique qui traduit les échanges de quantité de mouvement dans un système thermodynamique, et notamment au sein d'un solide ou d'un fluide. Elle est définie classiquement comme l'intensité de la force qu'exerce un fluide par unité de surface. C'est une grandeur scalaire (ou tensorielle) intensive. Dans le Système international d'unités elle s'exprime en pascals, de symbole Pa. L'analyse dimensionnelle montre que la pression est homogène à une force surfacique (1 Pa = 1 N/m2) comme à une énergie volumique (1 Pa = 1 J/m3). On appelle parfois « pression exercée » (par un fluide sur une paroi) la force (dite « force pressante ») qu'il exerce par unité d'aire de la paroi, mais il s'agit alors d'une grandeur vectorielle définie localement, alors que la pression est une grandeur scalaire définie en tout point du fluide.

Abstract from DBpedia / Wikipedia · CC BY-SA