<h2>Summary</h2>
<ul>
<li>Gauge pressure is the pressure relative to atmospheric pressure.</li>
<li>Absolute pressure is the sum of gauge pressure and atmospheric pressure.</li>
<li>Aneroid gauge measures pressure using a bellows-and-spring arrangement connected to the pointer of a calibrated scale.</li>
<li>Open-tube manometers have U-shaped tubes and one end is always open. It is used to measure pressure.</li>
<li>A mercury barometer is a device that measures atmospheric pressure.</li>
</ul>
<h2>Glossary</h2>
<h3>absolute pressure</h3>
<p>the sum of gauge pressure and atmospheric pressure</p>
<h3>diastolic pressure</h3>
<p>the minimum blood pressure in the artery</p>
<h3>gauge pressure</h3>
<p>the pressure relative to atmospheric pressure</p>
<h3>systolic pressure</h3>
<p>the maximum blood pressure in the artery</p>
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Summarizing Gauge Pressure and Absolute Pressure

Physics is a science discipline concerned with the nature and properties of matter and energy. Physics topics include mechanics, heat, light and radiation, sound, electricity, magnetism, the structure of atoms, and so on.

Physics

Explore the principles of fluid statics, including density, pressure, Pascal&#8217;s principle, Archimedes&#8217; principle, and cohesion and adhesion in liquids, and learn about pressure in the body, including blood pressure, pressure in the eye, and other pressures associated with the lungs.


Fluid Statics

Archimedes’ Principle

Cohesion and Adhesion in Liquids: Surface Tension and Capillary Action

Density

Gauge Pressure; Absolute Pressure; and Pressure Measurement

Pascal’s Principle

Pressure

Pressures in the Body

Variation of Pressure with Depth in a Fluid

What Is a Fluid?

Summarizing Gauge Pressure and Absolute Pressure

Summary

Glossary

absolute pressure

diastolic pressure

gauge pressure

systolic pressure

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