Notes From December 1st
A fluid is a material that flows like liquids and gases
Pressure is the measure of the force acting perpendicular to a unit area.
The Formula: P = F/A
- Force (F) is measured in Newtons
- Area(A) is measured in $m^2$
Units of pressure: (from the formula N/m2) Pa (pascals), kPa (kilopascals), 1kPa = 1000Pa
- Instead of using two units, scientists decided to invent one unit to denote this relationship: Pa - after a well known scientist Pascal.
If force increases —> pressure increases
If area increases —> pressure decreases
The pressure of fluids is exerted in all directions equally.
page revision: 0, last edited: 01 Dec 2008 19:21