simple machines

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Across
  1. 2. - t is done when an object changes its position due to the force applied on it
  2. 6. - tool that makes our work easier and convenient
  3. 7. - ability or capacity to work
  4. 8. - a music system produces this energy
Down
  1. 1. - e have to overcome this force while moving up a slope
  2. 3. - turning point around which the rod moves
  3. 4. - a simple machine used to hold things together
  4. 5. - simple machine which has two inclined planes put together