Unit D crossword Jonathan Perdomo 8s

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Across
  1. 1. a piece of work to be done
  2. 7. the action or process of transmitting something or the state of being transmitted.
  3. 9. rigid bar resting on a pivot
  4. 10. a short, slender, sharp-pointed metal pin
  5. 13. a large farming implement with one or more blades fixed in a frame
  6. 14. a rod or spindle (either fixed or rotating) passing through the center of a wheel or group of wheels.
  7. 17. wheelbarrow
  8. 18. a short, slender, sharp-pointed metal pin
  9. 22. any of the basic mechanical devices for applying a force, such as an inclined plane, wedge, or lever
  10. 24. baseball bat
  11. 25. a wheel with a grooved rim around which a cord passes
Down
  1. 2. a self-contained system within a larger system
  2. 3. The effort force is the force applied to a machine. Work input is the work done on a machine
  3. 4. crowbar
  4. 5. one of a set of toothed wheels that work together to alter the relation between the speed of a driving mechanism
  5. 6. a plane inclined at an angle to the horizontal.
  6. 8. a device for cracking nuts
  7. 11. A complex machine is a machine made up of two or more simple machines
  8. 12. an object to help people do tasks
  9. 15. the ratio of the force produced by a machine to the force applied to it, used in assessing the performance of a machine.
  10. 16. a circular object that revolves on an axle and is fixed below a vehicle or other object to enable it to move easily over the ground.
  11. 19. a wheel used to drive a water mill
  12. 20. a set of connected things or parts forming a complex whole, in particular
  13. 21. winding in a continuous and gradually widening (or tightening) curve, either around a central point on a flat plane or about an axis so as to form a cone
  14. 23. the action of linking