Electromagnetic

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Across
  1. 2. Always have 2 opposite poles
  2. 3. valley
  3. 5. Changing electric field induces changing magnetic field repeatedly causing electromagnetic
  4. 8. An electric field has lines of
  5. 9. all radiation travels at the same -----
  6. 12. Electric field lines radiate inward
  7. 14. Electricity is created when a charged particle---
  8. 15. Light travels________ km/s
  9. 16. Speed same but cycles and wavelengths----(opposite)
  10. 18. mean to crest to trough to mean is a wave ----
  11. 22. Without other particles, electric field lines go to infinity or come from infinity
  12. 25. Distance between two crests or troughs
  13. 26. a magnetic field will produce a current but only if it is
  14. 27. Center line is the ---- position
Down
  1. 1. Cycle per second (Hertz)
  2. 4. a charge will produce a magnetic field but only if it is
  3. 6. Mean to crest
  4. 7. least frequency
  5. 10. Electric field lines radiate outward
  6. 11. highest frequency
  7. 13. ------- radiation is energy that travels in waves through oscillating electric and magnetic fields
  8. 17. Ray acronym
  9. 18. Top of the mountain
  10. 19. Thumbs up = direction of the ----- is up
  11. 20. Every charged particle has an electric
  12. 21. middle frequency
  13. 23. Movement of charges can produce
  14. 24. We can only see this when it encounters an object and is a part of radiation