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Topic 1-3 Review

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Across
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A simple machine that is a long, spiral inclined plane
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Work is measured in ____.
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The ratio between the number of rotations of a driver gear and follower gear
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A ramp is an example of the _______ plane simple machine
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A measurement that describes how well a machine uses input work compared to its output work
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A doorknob contains a larger wheel and a smaller _____
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A device that makes it easier to do work
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The unit of measurement for force
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Two types of pulleys include fixed and ______.
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A knife blade is an example of this simple machine
Down
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The class of lever where the effort is applied between the load and the fulcrum
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A machine made of more than one simple machine
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Calculated by multiplying Force times Distance
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There are six basic _____ machines
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Wheels with teeth that are linked together
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A simple machine made of a system of ropes and grooved wheels
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Mechanical ______ is calculated by dividing the output force by the input force
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The force of ____ generates heat and sound, reducing the efficiency of the machine
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A steering wheel is an examples of a class ___ lever
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A simple machine made of a beam that moves on top of a fulcrum