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Type: Multiple-Choice
Category: Simple Machines
Level: Grade 8
Score: 3
Tags: efficiency
Author: jlovering
Created: 12 years ago

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Simple Machines Question

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Grade 8 Simple Machines

If a simple machine has an efficiency of 80% and you input 400 J of work, how much work will the machine output?
  1. 320 J
  2. 500 J
  3. 320 N
  4. 500 N