KEY TAKEAWAYS •
Density of a liquid or fluid is its mass divided by its volume.
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The concepts of pressure mainly apply to fluids that are gaseous in nature.
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Liquids will maintain their shape in an open container.
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Pistons will exert forces that act on other areas because the pressure across the fluid system will be the same throughout the fluid.
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Buoyant force equals the weight of the water it displaces, called Archimedes principle.
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Specific gravity is equal to the density of a fluid as it relates to the density of water.
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There are cohesive forces and adhesive forces that apply to a liquid and itself or another substance.
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Flow rate is the volume of a fluid traveling per a unit of time.
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Flow can be laminar or turbulent or a combination of the two.
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There is the Reynolds number, which predicts the turbulence of a fluid or an object traveling through fluid.
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Osmosis relates to the flow of water through a semi-permeable membrane.
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