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2 Written questions

2 Multiple choice questions

  1. A wheel and axle with a rope or chain attached to it. it changes the direction of motion with gravity.
  2. this machine rolls. wheels help you move an object across the ground of friction between what you are trying to move and the surface you are pulling it against.

2 True/False questions

  1. leverthis machine is like a ramp- and the thread is like the angle of an inclined plane. the wider the thread the harder it is to turn.


  2. Inclined planethis machine is really an inclined plane on its side. but instead of helping you move things to a higher level, it helps you push things apart.