PHYSICS

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Across
  1. 2. simple machines increase this
  2. 3. grooved wheel
  3. 4. inclined plane wrapped around a cylinder
  4. 6. makes work easier
  5. 9. output divided by input
  6. 10. sloped
  7. 11. force applied to a distance
  8. 13. keeps going even when broken
  9. 14. broken if burnt
  10. 15. thick at one end and is thin at the other
Down
  1. 1. two circular objects fastened together
  2. 3. energy that is not in motion
  3. 5. seen when work is done
  4. 7. ridged bar
  5. 8. energy that is in motion
  6. 12. closed loop that flows