Unit D Crossword By Jed E

123456789101112131415161718192021222324
Across
  1. 2. 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
  2. 5. force a machine applies to an object
  3. 6. device that helps us work
  4. 9. force applied to operate a machine
  5. 10. measure of the amount of force applied to a given area
  6. 13. simple machine that looks like an inclined plane, but is forced into an object
  7. 15. simple machine made up of two wheels of different diameters that turn together; a longer motion on the wheel produces a shorter but more powerful motion on the wheel produces a shorter but more powerful motion at the axle
  8. 16. amount by which a machine can multiply a force; calculated by dividing the output force by the input force
  9. 18. simple machine that consists of a cylinder with a groove cut in a spiral on the outside
  10. 19. special type of linkage for transferring the energy from the engine to the wheels in large vehicles such as cars and trucks
  11. 20. measurement of how well a machine or device uses energy; can be calculated by by dividing mechanical advantage by speed ratio or by dividing work output by work input
  12. 22. tool or device made up of one basic machine
  13. 23. simple machine made up of a rigid bar or plank that rotates fixed objects called a pivot or fulcrum
  14. 24. force that opposes motion
Down
  1. 1. smaller group of parts within a complex machine that performs a specific function
  2. 3. simple machine made up of a flat surface, such as board, at an angle to another flat surface, such as the ground or a table top; ramp
  3. 4. belt or chain to transfer energy from an energy source to an object
  4. 7. done when a force acts on an object to make the object move; calculated by multiplying force times distance
  5. 8. when pressure is applied to a liquid in a container, the pressure and force is transmitted equally and undiminished throughout the liquid; an enclosed liquid transmits pressure equally in all directions
  6. 11. system that uses a liquid under pressure to move loads; device that uses liquids in a confined space to transfer forces; works according to Pascal's law
  7. 12. the physical form of the device that makes it usable
  8. 14. pair of wheels with teeth that interlink; when they rotate together, one gearwheel transfers turning motion and force to the other
  9. 17. system in which simple machines all work together; parts of a complex machine that have just one function are called subsystem and often contain a simple machine
  10. 21. a group of parts that work together to perform a general function, forming a complex machine
  11. 22. measure of how the speed of the object is affected by a machine; calculated by dividing the input distance by the output distance