UNIT D CROSSWORD

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Across
  1. 4. is a group of parts that work together to perform a function
  2. 7. the force the machine applies the object
  3. 14. is the measurement of how well a machine or device uses energy
  4. 15. ration is calculated by dividing the input distance by output distance
  5. 17. amount by which a machine can multiply
  6. 20. is what the device is supposed to do
  7. 21. The size of the gears and the sequence in which they engage define the ratio of the angular velocity
  8. 24. is a combination two wheels of different diameter the turn together
  9. 25. is a rigid bar or plank that can rotate around a fixed point called a pivot or fulcrum
Down
  1. 1. essential components of most mechanical systems
  2. 2. is the measure of the amount of force applied to a given area
  3. 3. simple machine that looks like an inclined plane but is forced into an object
  4. 5. simple machine made up of a flat surface
  5. 6. force a machine applies to an object
  6. 8. uses a liquid under pressure to move loads
  7. 9. is a system in which simple machines all work together
  8. 10. smaller group of parts within a complex machine the performs a specific function
  9. 11. is a tool or device made up of one basic machine
  10. 12. the principle of transmission of fluid-pressure
  11. 13. is the force that opposes the motion
  12. 16. special type of cell
  13. 18. is a cylinder with a groove cut into a spiral on the outside
  14. 19. is the part that transfers your your energy from the pedals to the back wheel
  15. 22. simple machine made up of wire,rope,or rope moving on a grooved wheel
  16. 23. is a device that helps us do work
  17. 24. is done when force acts on objects to make the object move