Crossword Chapter 4

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Across
  1. 3. simple machine made from a bar that is free to pivot about a fixed point
  2. 6. energy due to motion
  3. 8. ________ advantage - ratio of output force to input force
  4. 10. ______ energy - stored energy due to position
  5. 12. force applied through a distance
  6. 13. rate at which energy is converted
  7. 15. _______ potential energy - energy stored in chemical bonds
  8. 16. anything around which you can imagine a boundary
  9. 17. the ability to cause change or to do work
  10. 18. device that changes the force or increases the motion from work
Down
  1. 1. _____ energy - sum of potential and kinetic energy in a system
  2. 2. _____ machine - combination of two or more simple machines
  3. 4. ratio of output work to input work
  4. 5. ______ plane - simple machine that consists of a sloping surface, such as a ramp
  5. 7. _________ potential energy - energy stored by things attracted to each other by the force of gravity.
  6. 9. Law of ____ of Energy - states energy can never be created or destroyed.
  7. 11. SI unit of energy
  8. 14. ________ machine- Machine that does work with only one movement
  9. 17. ________ potential energy - energy stored by things that stretch or compress