Chapter 4: Forces and Motion

Edit Answers
12345678910111213141516
Across
  1. 4. the force that resists the movement of objects against each other
  2. 5. a type of force
  3. 7. an object that makes work easier
  4. 9. the point on which a lever turns
  5. 10. the force that pulls objects toward the earth
  6. 12. the force moving an object over a distance
  7. 13. the weight of the object being moved
  8. 15. the amount of effort needed on a lever is determined by the _____ between the effort and fulcrum
  9. 16. a bar that turns on a point
Down
  1. 1. a great mass requires _____ force to move it
  2. 2. a change in position
  3. 3. the amount of work you do to move an object
  4. 5. a wheel with a groove that can hold a rope
  5. 6. an incline plane wound around an axle
  6. 8. the force applied to cause a simple machine to do work
  7. 11. the inclined plane on a screw
  8. 13. block & tackle allows you to use _____ force when lifting an object because the rope moves a greater distance
  9. 14. one or more inclined planes used to force materials apart