Phys Sci Ch05 Crossword

12345678910111213
Across
  1. 4. When two or more simple machines are used together, it is called a ____ ____.
  2. 5. A ____ machine is a machine that does work with only one movement.
  3. 7. The number of times a machine multiplies the effort force (2 words).
  4. 10. Because friction causes the output work to always be less than the input work, the ____ of a real machine is always less than 100%.
  5. 11. When a machine helps you do work only by changing direction, the mechanical advantage is _____.
  6. 12. A grooved wheel with a rope, chain, or cable running along the groove.
  7. 13. An inclined plane with one or two sloping sides.
Down
  1. 1. A device that makes doing work easier.
  2. 2. A bar that is free to pivot, or turn, about a fixed point.
  3. 3. The force applied by the machine to overcome resistance (2 words).
  4. 6. A machine consisting of two wheels of different sizes that rotate together (3 words).
  5. 8. The distance from the fulcrum to where the effort force is applied (2 words).
  6. 9. A sloping surface, such as a ramp, that reduces the amount of force required to do work (2 words).
  7. 13. The transfer of energy that occurs when a force makes an object move.