Physics

4th

grade

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Simple Machines

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  • 1. Multiple Choice
    1.5 minutes
    1 pt
    Which is the following is an example of work, to a  scientist? 
    solving a mental math problem
    carrying a book across the room
    pushing against the floor
    lifting a chair of the floor?
  • 2. Multiple Choice
    1.5 minutes
    1 pt
    A simple machine is a device that helps to reduce the amount of _____ required to work.
    force
    energy
    work
  • 3. Multiple Choice
    1.5 minutes
    1 pt
    ____ is done when a force is applied over a distance.
    energy
    work
    force
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