What is pressure?pressure
Answers
Hlo Follow Me And like my ans 50 plus for Inbox......
Here is your Ans....
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.:445[1] Gauge pressure (also spelled gage pressure)[a] is the pressure relative to the ambient pressure.
Pressure
Common symbols
p, P
SI unit
Pascal [Pa]
In SI base units
1 N/m2, 1 kg/(m·s2), or 1 J/m3
Derivations from
other quantities
p = F / A
Dimension
M L−1 T−2
A figure showing pressure exerted by particle collisions inside a closed container. The collisions that exert the pressure are highlighted in red.
Pressure as exerted by particle collisions inside a closed container
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 (N/m2); 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.
Pressure is the amount of force applied at right angles to the surface of an object per unit area. The symbol for it is p or P.[2] The IUPAC recommendation for pressure is a lower-case p.[3] However, upper-case P is widely used. The usage of P vs p depends upon 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.
Formula Edit
Pressure force area.svg
Mathematically:
{\displaystyle p={\frac {F}{A}},} {\displaystyle p={\frac {F}{A}},}[4]
where:
{\displaystyle p} p is the pressure,
{\displaystyle F} F is the magnitude of the normal force,
{\displaystyle A} A is the area of the surface on contact.
Pressure is a scalar quantity. It relates the vector area element (a vector normal to the surface) with the normal force acting on it. The pressure is the scalar proportionality constant that relates the two normal vectors:
{\displaystyle d\mathbf {F} _{n}=-p\,d\mathbf {A} =-p\,\mathbf {n} \,dA.} {\displaystyle d\mathbf {F} _{n}=-p\,d\mathbf {A} =-p\,\mathbf {n} \,dA.}
The minus sign comes from the fact that the force is considered towards the surface element, while the normal vector points outward. The equation has meaning in that, for any surface S in contact with the fluid, the total force exerted by the fluid on that surface is the surface integral over S of the right-hand side of the above equation.
Answer:
pressure mean when you push something than it is called pressure
Explanation:
please mark me ब्रिलियंट