# Work And Machines 3: Question Preview (ID: 3271)

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Which of the following is NOT a wedge? |
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a) knife | b) plow | c) chisel | d) ramp | |

Where is the input force of a wheel and axle exerted? |
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a) a circular distance | b) a rectangular distance | c) an inclined plane | d) a spiral | |

Greg applies a force of 100 N to move a box 5 meters. How much work did he do? |
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a) 100 J | b) 500 J | c) 5 J | d) 500 N | |

If you exert 20 N of force on a screwdriver and it exerts 40 N on a paint can lid, what is the screwdriver's mechanical advantage? |
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a) 2 | b) 20 | c) 1 | d) 40 | |

Which of the following is a compound machine? |
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a) first class lever | b) block and tackle pulley | c) wheel and axle | d) screw | |

What is the equation for work? |
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a) Work = force x distance | b) work = force / distance | c) work = force x time | d) work = force / time | |

What is the equation for power? |
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a) power = work / time | b) power = work x time | c) power = work x distance | d) power = work / distance | |

Which is a complex machine? |
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a) scissors | b) ramp | c) wheel barrow | d) paint can opener | |

No question |
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a) | b) | c) | d) | |

No question |
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a) | b) | c) | d) | |

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