Chapter 10
Fluids
By Boundless
![Thumbnail](../../../../../figures.boundless-cdn.com/10107/square/figure-203.jpeg)
Pressure is scalar quantity which is defined as force per unit area where the force acts in a direction perpendicular to the surface.
![Thumbnail](../../../../../figures.boundless-cdn.com/10110/square/equation-202.jpeg)
Pressure within static fluids depends on the properties of the fluid, the acceleration due to gravity, and the depth within the fluid.
![Thumbnail](../../../../../figures.boundless-cdn.com/10152/square/figure-201.jpeg)
Any region or point, or any static object within a static fluid is in static equilibrium where all forces and torques are equal to zero.
![Thumbnail](../../../../../figures.boundless-cdn.com/10178/square/figure-201.jpeg)
Pascal's Principle states that pressure is transmitted and undiminished in a closed static fluid.
![Thumbnail](../../../../../figures.boundless-cdn.com/10190/square/equation-201.jpeg)
Pressure is often measured as gauge pressure, which is defined as the absolute pressure minus the atmospheric pressure.
![Thumbnail](../../../../../figures.boundless-cdn.com/10384/square/equation-201.jpeg)
Barometers are devices used for measuring atmospheric and gauge pressure indirectly through the use of hydrostatic fluids.
![Thumbnail](../../../../../figures.boundless-cdn.com/10390/square/equation-202.jpeg)
Pressure plays an essential role in a number of critical bodily functions including respiration and blood circulation.
![Thumbnail](../../../../../figures.boundless-cdn.com/12998/square/ships.jpg)
The buoyant force on an object can be calculated using the Archimedes principle.
![Thumbnail](../../../../../figures.boundless-cdn.com/12995/square/figure-12-07-03a.jpeg)
The buoyancy force on a completely submerged object of volume is
![Thumbnail](../../../../../figures.boundless-cdn.com/13045/square/figure-12-07-04a.jpeg)
An object floats if the buoyancy force exerted on it by the fluid balances its weight.
![Thumbnail](../../../../../figures.boundless-cdn.com/17401/raw/scale-kilometres-miles.jpg)
Length is one of the basic dimensions used to measure an object.
![Thumbnail](../../../../../figures.boundless-cdn.com/17410/raw/assorted-polygons.jpg)
The shape of an object is a description of space that the object takes up; the shape can change if the object is deformed.
![Thumbnail](../../../../../figures.boundless-cdn.com/17343/square/220px-simple-measuring-cup.jpeg)
Volume is a measure of the three-dimensional space an object occupies, usually taken in terms of length, width and height.
![Thumbnail](../../../../../figures.boundless-cdn.com/32468/square/md6lhuqvrmua3salcxm0.jpg)
A point charge creates an electric field that can be calculated using Coulomb's Law.