• Examples:
• When a person dives underwater for every 33 feet you dive down in the water, 1 atmosphere of pressure is added. That is 14.7 pounds/square inch.

• Pressure is transmitted throughout fluid equally.
• Examples: squeezing a toothpaste tube, a shampoo bottle, a balloon that is blown up and squeezed.

Units : Pa- Pascals cm3-centimeteres cubed n-newtons atm-atmosphere Torr-torr

• A common example of how Pascal's law is used in everyday life are the hydrolics used to lift a car while its being worked on. Or the hydrolics that some peoploe put in their cars so that they bounce.
• A small force is applied to a small-area piston it is then transfered to a large force at a large-area piston. This causes it to become unbalanced and move up and down.

Consider the following:

A car with Hydrolics is showing a prime example of Pascals Princeple. A small force is applied to a small area piston. It is then transformed to a large force a large area piston. This cuases the car to go up and down or side to side like, appearing to bounce around on its wheels.


Sample Problem

• What is the pressure exerted by a piston if a force of 20 Newtons is applied over an area of 1 square meter?

Sample Problems Video:
http://eanes.tx.schoolwebpages.com/education/sctemp/2a71c263542e45467ff8e554517571bd/Pascals2Piston_emilie.wmvk