Bob Jones science 9 Chapter 15 Fluid Mechanics
Terms
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- Pressure is...
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the force pushing directly on a given surface.
p=f/a
15A - 1 N/m2 =
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1 Pascal (Pa)
15A -
1 millibar (mb)=
(metereologists use this term) -
100 Pa (normal atmospheric pressure is 1013 mb)
15A - As you increase the area on which a force acts, the pressure exerted...
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decreases.
15A - Ocean water pressure is greater than lake water pressure because...
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the salt in the water gives it greater density.
15A - What is the term that describes the study of liquids and gases and the forces they exert?
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Fluid mechanics
15A - Pascal's principle...
- Changes in pressure in a confined fluid are distributed equally in all directions throughout the fluid. 15B
- Machines that use fluids to transmit or increase force are...
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hydraulic machines.
15B - Mechanical advatage for hydraulics formula...
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MA = output force/input force
15B - As blood goes to capillaries, blood pressure...
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decreases.
15B - Archimede's principle...
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An immersed object is buoyed up by a force equal to the weight of the fluid displaced.
15B - Specific gravity formula...
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weight in air divided by weight in air-weight in water.
(archimemde's principle)
15B - Bernoulli's principle...
- pressure of a fluid decreases as its speed increases. This allows airplanes to lift off the ground. 15B
- Boyle's Law...
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p1v1=p2v2 (pressure and volume are inversely proportional - when one goes up the other goes down)
15C - Charles's Law...
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v1/t1=v2/t2
15C