Electromagnetic crossword puzzle

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Across
  1. 3. car
  2. 6. electricity
  3. 7. power
  4. 10. s
  5. 11. north
  6. 13. rhymes with ramp
  7. 15. barb
  8. 16. rock
  9. 17. nail
  10. 19. buzz buzz
  11. 21. 2 poles
  12. 22. hammer
Down
  1. 1. santa
  2. 2. remote
  3. 4. Lighting Rod
  4. 5. Copper Coil
  5. 8. 5 cents
  6. 9. Field
  7. 12. now
  8. 14. n
  9. 18. particles
  10. 20. points north