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14.2 Measuring Pressure
Gauge versus absolute readings, and how open-tube manometers and barometers turn the height of a fluid column into a pressure value.
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3 exercises
14.2 Exercise 1
Mercury is a hazardous substance. Why do you suppose mercury is typically used in barometers instead of a safer fluid such as water?
2.5
14.2 Exercise 2
Explain why the fluid reaches equal levels on either side of a manometer if both sides are open to the atmosphere, even if the tubes are of different diameters.
2.5
14.2 Exercise 4
How tall must a water-filled manometer be to measure blood pressure as high as 300 mm Hg?
2.5
Adapted from University Physics Volume 1 © 2016 Rice University. Licensed under CC BY 4.0. Source: University Physics Volume 1. Imported at revision db44eb9.