Unit D Crossword, Natalie Toltesi 8Sau

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Across
  1. 3. a force that opposes motions and makes it impossible to create a perpetual motion machine
  2. 4. a driver would use this to select different gears in a car by transferring energy from the engine to the wheels
  3. 7. there are _____types of levers classified by where the fulcrum is located
  4. 10. large screw inaide a tube to move volumes of water up the tube as the screw rotates, invented by Archimedes
  5. 11. simple machine in which a longer motion on the wheel produces a shorter but more powerful motion at the axle
  6. 12. force the machine applies to object is called the ____ force
  7. 13. output force divided by the input force of a machine, the amount a machine can multiply a force
  8. 14. force applied to machine is called the _____ force
  9. 16. distance and force combined are measured in _______ to calculate the amount of work done
  10. 17. simple machine that consists of a cylinder with a groove cut in a spiral on the outside
  11. 18. system in which simple machines all work together
  12. 21. a group of parts that work together to perform a general function making a complex machine
  13. 22. device that helps us do work
  14. 23. simple machine with a cord-like material moving along grooved wheel
  15. 24. belt or chain to transfer energy from an energy source to an object
  16. 25. simple machine made up of a rigid bar or plank that rotates on a fixed object called a pivot or fulcrum
Down
  1. 1. simple machine made up of flat surface at an angle to another flat surface
  2. 2. P=F/A where P= _______ unit of measurement is pascals
  3. 5. smaller group of parts within a complex machine that perform a specific function
  4. 6. or device made up of one basic machine
  5. 8. fixed point that the lever rotates around, the closer to the load, the more mechanical advantage
  6. 9. input and output forces are measured in
  7. 15. formation of wheels with interlocking grooves that transfers force from wheel to wheel with a turning motion
  8. 17. measure of how speed of object is affected by machine calculated by dividing input distance by output distance
  9. 19. pressure applied to an enclosed fluid is transmitted equally in all directions throughout the fluid
  10. 20. simple machine that looks like an inclined plane, but is forced into an object