Simple Machines: Pulleys
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| single fixed pulley | has the fulcrum between the force and the load
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| pulley | a kind of lever that can change the direction of force and/or multiply
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| numbers of lines | determines how much the force is amplified
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| block and tackle | consists of a fixed and a movable pulley
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| movable pulley | set up so the force and load move in the same direction
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| __can be set up in 3 ways: single fixed pulley, movable pulley, block and tackle | pulley
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| in a pulley system, the effort__and effort __ movement are in the same direction | force movement
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| in a block and tackle system, the effort force moves__as the load moves__ | downward up
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| with the pulley system, the resistance__is in the direction of gravity, and the resistance__motion is the opposite direction | force motion
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| with a movable pulley, the___is at the end of the lever where the supporting rope touches the pulley | fulcrum
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| what does a movable pulley resemble | a second class lever
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| what does a single fixed pulley behave like | a first class lever
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| this type of pulley only changes the direction of the force | single fixed pulley
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Created by:
smileyk
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