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Type: Multiple-Choice
Category: Simple Machines
Level: Grade 8
Score: 1
Author: sherrileag
Last Modified: 22 days ago

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Simple Machines Question

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Grade 8 Simple Machines

Comparing a machine's work output with work input refers to
  1. a watt.
  2. mechanical efficiency.
  3. mechanical advantage.
  4. a joule.
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