Unit D crossword Miguel H. 8sch

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Across
  1. 2. a group of parts that work together to perform a general function, forming a complex machine
  2. 7. force that opposes motion
  3. 9. system in which simple machines all work together
  4. 12. simple machine made up of a wire, rope, or cable moving on a grooved wheel; may be made up of one or many wheels; can be fixed in place or movable
  5. 15. device that moves a fluid through or into something
  6. 16. pairs of wheels with teeth that interlink; when they rotate together, one gearwheel transfers turning motion and force to the other
  7. 17. amount by which a machine can multiply a force
  8. 18. system that uses a gas under pressure to move loads
  9. 20. simple machine made up two wheels of different diameters that turn together
  10. 22. force applied to operate a machine
  11. 23. simple machine made up of a rigid bar or plank that rotates on a fixed object called a pivot or fulcrum
  12. 24. simple machine that consists of a cylinder with a groove cut in a spiral on the outside
Down
  1. 1. force a machine applies to an object
  2. 2. smaller group of parts within a complex machine that performs a specific function
  3. 3. tool or device made up of one basic machine
  4. 4. a complex system containing multiple pulleys designed to help lift heavy loads.
  5. 5. measurement of how well a machine or device uses energy
  6. 6. special type of linkage for transferring the energy from the engine to the wheels in large vehicles such as cars and trucks
  7. 8. system that uses liquid under pressure to move loads
  8. 10. when pressure is applied to a liquid in a container, the pressure and force is transmitted equally and undiminished throughout the liquid.
  9. 11. simple machine made up of a flat surface, such as a board, at an angle to another flat surface, such as the ground or a table top; ramp
  10. 13. measure of how the speed of the object is affected by a machine; calculated by dividing the input distance by the output distance
  11. 14. device that helps us do work
  12. 19. simple machine that looks like an inclined plane, but is forced into an object.
  13. 21. belt or chain to transfer energy from an energy source to an object