Work and Simple Machines Crossword

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Across
  1. 3. A wheel over which a pulled rope runs to change the direction of the force Ex. Flagpole
  2. 4. The force applied to an object. Work is only done if the object moves in the same direction as the applied force.
  3. 5. A wheel attached to an axle. Ex. Doorknob
  4. 6. The unit of measurement for work
  5. 9. A simple device for changing the amount and/or direction of a force
Down
  1. 1. A flat surface raised at an angle like a ramp Ex. Stairs
  2. 2. A push or pull on an object
  3. 4. Made up of two inclined planes put together Ex. Knife
  4. 7. A spirally grooved solid cylinder Ex. Jar Lid
  5. 8. Made of a bar that pivots of a fixed support, or fulcrum. Three different classes. Ex. Seesaw