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17 Cards in this Set
- Front
- Back
Fluid Pressure
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All forces exerted by the individual molecules in a fluid that add together to make up the pressure exerted
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Bernoulli's Principle
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States that the pressure exerted by a moving stream a fluid is less that the pressure of a surrounding fluid
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SI unit of Pressure
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Pascal PA or newton per square meter(N/m)
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Pascal's Principal
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When a force is applied to a confined fluid, an increase in pressure is transmitted equall to all parts of the fluid
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fluid
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a substance whose shape can
easily be change |
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Buoyancy
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water exerts force called the buoyance force, this acts in the upward direction, against the force of the gravity, so it makes it feel lighter
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Calculating Pressure
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pressure= Force
Area |
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Archimedes Principle
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States that the buoyant force on an object is equal to the weight of the fluid displaced by the object
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Pressure/Fluid
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The pressure within a fluid is
the same at any given level an exerted in all directions |
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Pascal's Principal
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When force is applied to confined fluid, an increase in pressure is transmitted equally to all parts of the fluid
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Pressure and Elevation
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air pressure decreases
as elevation increases |
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Density
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Density= Mass
Volume |
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Hydraulic System
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Multiplies a force by applying the force to a small surfce area. the increase in pressure is then transmitted to another part of a confined fluid, which pushes on a larger surface area
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Densities of substances
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Change the density of a substance can make it float oer sink
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pressure exerted by a fluid
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all the forces exerted by the individual molecules in a fluid add together to make up the pressure exerted by the fluid
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Pressure and Depth
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Fluid pressure depends on depth.
Water pressure increases as depth increases. |
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Sinking / Floating
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An object that is more dense that the fluid which it is immeresed sinks. An object that is less dense that the fluid which it is immersed floats to the surface.
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