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13 Cards in this Set
- Front
- Back
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What does pressure do as the area over which the force distributed increases?
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The pressure decreases.
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What is the formula for pressure?
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Pressure = Force
Area |
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What is pressure?
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A force exerted on a surface.
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What is the unit of pressure?
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Pascal (N/m2)
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What is a fluid?
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A material that can easily flow.
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What happens as your elevation increases?
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Atmospheric pressure decreases.
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What happens when depth increases?
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Water pressure increases.
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What is a barometer?
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An instrument uses to measure atmospheric pressure.
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What is a buoyant force?
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The upward force exerted by a fluid on a submerged object.
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Why does a buoyant force make an object feel lighter?
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Because it acts in the direction opposite to gravity.
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What does Archimedes' principle state?
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The buoyant force acting on a submerged object is equal to the weight of the fluid the object displaces.
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What is Pascal's principle?
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When a force is applied to a confined fluid, the change in pressure is transmitted qwually to all parts of the fluid.
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What does a hydraulic system do?
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It uses liquids to transmit pressure in a confined fluid.
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