pressure
By: D'j West
Pressure
- pressure is force per unit
- the greater the force of a given area, the greater the pressure
- the smaller the area is on which a given force acts, the greater the pressure
Area
- the extent or measurement of a surface
- to get the pressure u dived the area by the force
formula for pressure
measuring pressure
- a barometer is a device used to measure atomspheric pressure.
- the barometer was introduced to the world in 1600's by Evangelista Torricelli
- he discovered pump could only raise water 34 feet high
How Does a Barometer Work?
helpful information
- a common unit of measuring pressure is millimeter of mercury(Hg)
- pressures can also be measured in unit of atmospheres
- because the averge atmospheric at sea level at 0 degrees celcius is, 760mm Hg