Machines Crossword

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Across
  1. 4. A device that increases the force applied of a task
  2. 6. A device that makes work easier by changing the size or direction of a force.
  3. 8. A wheel with a rod, called an axel, through its centre lifts or moves loads.
  4. 9. An inclined plane wrapped around a pole which holds things together or lifts materials.
Down
  1. 1. Ratio of the load force, to the effort force used by a simple machine.
  2. 2. Point about which a leaver pivots
  3. 3. A simple machine that uses grooved wheels and a rope to raise, lower or move a load.
  4. 5. A slanting surface connecting a lower level to a higher level.
  5. 7. A stiff bar that rests on a support called a fulcrum which lifts or moves loads.
  6. 8. An object with at least one slanting side ending in a sharp edge which cuts material apart.
  7. 10. An inclined plane used to help lift an object.