# Pressure: Question Preview (ID: 29390)

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What is the absolute pressure experienced at a point on the bottom of a swimming pool 9 meters in depth? |
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a) 1000 Pa | b) 188200 Pa | c) 500 Pa | d) 1882 Pa | |

A hydraulic lift is used to lift a heavy machine that is pushing down on a 3.0 m2 piston (A1) with a force (F1) of 4,000 N. What force (F2) need to be exerted on a .050 m2 piston (A2) to lift the machine? |
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a) 666.66 N | b) 66.66 N | c) .666 N | d) none of the above | |

What is the absolute pressure in a depth of 100 meters of ocean water? |
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a) 1.08 x 10 ^ -6 | b) 1.08 x 10^5 | c) 1.08 x 10^6 | d) none of the above | |

The interior of a submarine located at a depth of 45 meters is maintained at normal atmospheric conditions. Find the total force exerted on a .20 m by .20 m square window. ( Hint: find absolute pressure then force ☺) |
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a) 21640 | b) 541000 | c) 216400 | d) none of the above | |

what is the unit for pressure? |
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a) Pascal | b) atmospheric | c) barr, torr, mercury | d) all of the above | |

what is pressure? |
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a) the magnitude of the force on a surface per unit perimeter | b) the magnitude of the force on a surface per unit area | c) the magnitude of the force on a surface per unit volume | d) the magnitude of the force on a surface per unit time | |

Which one has the highest pressure? |
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a) large area | b) medium area | c) medium rare area | d) small area | |

what is pascal's principle? |
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a) Any externally applied pressure is not transmitted to all parts of the enclosed fluid | b) Any externally applied pressure is transmitted to all parts of the enclosed fluid | c) Any externally applied pressure is sometimes transmitted to all parts of the enclosed fluid | d) Any externally applied pressure is transmitted to all parts of an open fluid | |

You can exert 50 N of force on a piston with an area of 1.0 m2. If you are trying to lift a machine that weights 500 N, what must be the area of the piston on which the machine rests? |
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a) 100 | b) 10 | c) 50 | d) 5 | |

You decide to drive your vehicle, which has a weight of 100 N onto a piston that is 5.0m2, what weight machine can you lift if the piston on which it rests is 20 m2? |
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a) 100 | b) 200 | c) 300 | d) 400 | |

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