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| Give me an equation for pressure. |
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Definition
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| Liquids exert ______ equally in all directions at all points within the liquid. |
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| The pressure exerted by a liquid at any point is proportional to the density of the liquid times the depth of that point below the liquid’s ______________ |
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Definition
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| The total pressure at any given point in a liquid is the pressure exerted by the liquid plus the pressure of the __________________________ |
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Definition
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Definition
| The apparent loss of weight of an object immersed in a fluid |
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Term
| An immersed object displaces _______ of the fluid in which it is immersed. |
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Definition
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Term
| A completely submerged object always displaces a volume of fluid equal to its own ___________. |
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Definition
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Term
| Define: Archimedes’ principle |
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Definition
| An immersed object is buoyed up by a force equal to the weight of the fluid it displaces |
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Term
| Give three principles of flotation. |
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Definition
| A. Object more dense than immersion fluid, it sinks. B. Object less dense than immersion fluid, it floats. C. Object equal in density of immersion fluid, it suspends. |
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Term
| A floating object displaces a weight of fluid equal to its own ______________. |
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Definition
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Term
| Changes in pressure at any point in an enclosed fluid at rest are transmitted _______________ to all points in the fluid and act in all directions. |
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Definition
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Term
| The hydraulic press is based on ________ principle |
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Definition
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Term
| Pressure of a liquid at rest does/does not depends on the shape of the container. |
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Definition
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Term
| Give me an Equation for pressure (due to a liquid). |
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Definition
(Weight density)(depth)
More explanation: Pressure = F/A which is Weight/Area
Weight = weight density* volume so:
Pressure = weight density*area*depth/area
The area’s divide out giving us: Weight density * Depth |
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Definition
| When an object is submerged, the fluid exerts an upward force equal to the weight of the displaced fluid |
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Term
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Definition
| Volume of a fluid (air or fluid) replaced by an object |
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Term
| What controls the density of a submarine or ocean-liner? |
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Definition
| Water contained in its ballast tanks |
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Term
| How does a crocodile change his density? |
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Definition
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