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Type: Multiple-Choice
Category: Simple Machines
Level: Grade 5
Score: 4
Author: LBeth
Last Modified: 5 years ago

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Simple Machines Question

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Grade 5 Simple Machines

Which of the following best explains why lifting a heavy object with a single fixed pulley and rope makes the task seem easier?
  1. Less force is needed to lift the object.
  2. Less work is done when moving the object.
  3. The direction of the force required to lift the object is changed.
  4. The force needed to move the object is applied over a greater distance.
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