File:Pressure_exerted_by_collisions.svg · Wikimedia Commons · See Wikimedia Commons
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.
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.
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~30 min read
Article
21 sectionsContents
- Definition
- Formula
- Units
- Examples
- Scalar nature
- Types
- Fluid pressure
- Applications
- Explosion or deflagration pressures
- Negative pressures
- Surface pressure and surface tension
- Gas pressure
- Vapour pressure
- Liquid pressure
- Direction of liquid pressure
- Kinematic pressure
- Navier–Stokes equation with kinematic quantities
- See also
- Notes
- References
- External links
{{Infobox physical quantity | name = Pressure | image = Pressure exerted by collisions.svg | image_size = 250px | caption = Pressure exerted by particle collisions inside a closed container. The collisions that exert the pressure are highlighted in red. | unit = pascal (Pa) | baseunits = kg⋅m⋅s | symbols = , | derivations = | dimension = \mathsf{M} \mathsf{L}^{-1} \mathsf{T}^{-2} }}
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.