Pressure is determined by the flow of a mass from a high pressure region to a low pressure region. Pressure measurements are made on the fluid states--liquids and gases. Air exerts a pressure which we are so accustomed to that we ignore it, however the pressure of water on a swimmer is more noticeable. You may be aware of pressure measurements in relations to the weather, your car, or bicycle tires.
Contributors and Attributions
- Michele Salles
- Charles Ophardt, Professor Emeritus, Elmhurst College & The Virtual Chembook