Unit D crossword

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Across
  1. 1. a short slender sharp pointed pin with a metal line running around it its a old simple machine
  2. 3. a slanted piece of wood driven down between one object to pretty much cut it in half an make two objects
  3. 4. machine system a machine made up of simple machines
  4. 11. force measure of how the speed of the object is affected by machine
  5. 12. special type of linkage for transporting energy to big vehicles
  6. 14. purpose or task
  7. 15. a wheel and rope pulled down to lift heavy objects
  8. 17. machine a basic mechanical device like a wedge or lever
  9. 19. a pair of wheels with teeth interlinking with other wheels rotating together
  10. 20. an activity involving physical work to accomplish a goal
Down
  1. 2. and axle a simple lifting machine consisting of a rope that unwinds from a wheel onto a cylindrical drum to provide mechanical advantage
  2. 5. advantage amount by which a machine can multiply force
  3. 6. force that oppose motion
  4. 7. system a transmission system that uses pressurized hydraulic fluid to power hydraulic machinery parts of that machine that move
  5. 8. measure of amount of force placed on a object
  6. 9. a self contained system in a larger system
  7. 10. is a device that helps us work, is used in people’s life every day
  8. 11. plane simple machine made of a flat surface
  9. 13. force force applied to an object
  10. 16. a simple machine made up of a rigid bar that rotates on a fixed object called a pivot or fulcrum a point where a lever rests on
  11. 17. radio are a kind of electromagnetic radiation, and thus they move at the speed of light
  12. 18. law is a principle in fluid mechanics that states that a pressure change occurring anywhere in a confined incompressible fluid is transmitted throughout the fluid