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11 Cards in this Set
- Front
- Back
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Density
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A measure of the mass per unit volume of a substance. lowercase Greek letter ρ (rho).
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Pressure
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force per unit area on a surface.
Measured in Pa's (pascals) |
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Pascal's Principle
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the pressure applied to a confined fluid is transmitted evenly throughout the fluid.
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Mechanical Advantage
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The ratio of the force out to the force in (hydraulic lift)
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Buoyancy
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upward force b/c of water pressure
Since the pressure is greater on lower surfaces, there is a net upward force on the object. This upward force is called buoyancy. |
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Archimedes principle
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the buoyant force is equal to the weight of the fluid displaced by the object.
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Bernoulli’s principle
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velocity and pressure in a fluid are inversely related
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Apparent weight
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net downward force on a submerged object; i.e. Fg-B
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Fluid dynamics
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The study of fluids in motion
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Streamline / Laminar Flow
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flow is smooth, layers slide by each other
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Turbulent Flow
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erratic, whirlpool-like circles called eddy currents
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