Simple Machines

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Across
  1. 2. The rate at which work is done
  2. 7. unbalanced forces causes something to accelerate
  3. 9. a simple machine that uses grooved wheels and a rope to raise, lower or move a load.
  4. 10. force of attraction between all objects in the universe
  5. 11. an inclined plane wrapped around a pole which holds things together or lifts materials.
  6. 12. & Axle A wheel with a rod, called an axle, through its center lifts or moves loads.
Down
  1. 1. the speed and direction of an object
  2. 3. A push or a pull; all forces have both size and direction
  3. 4. a stiff bar that rests on a support called a fulcrum which lifts or moves loads.
  4. 5. how far out of place an object is.
  5. 6. Plane a slanting surface connecting a lower level to a higher level.
  6. 8. The action that results when a force causes an object to move in the direction of the force.
  7. 12. an object with at least one slanting side ending in a sharp edge, which cuts material apart.