Physics Crossword Puzzle

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Across
  1. 4. Positive polarity
  2. 6. Defines the relationship between voltage, current, and resistance
  3. 8. Resistance to current flow in AC circuits
  4. 9. Opposition to the flow of current
  5. 11. Time it takes for consecutive crests to pass a specific point
  6. 14. Waves in which particles move perpendicular to the wave direction
  7. 15. A disturbance that propagates through a medium
  8. 19. A wave is bent or changes direction due to a change in medium
  9. 20. Waves in which particles move parallel to the wave direction
  10. 21. Powered using battery sources
  11. 23. Waves encounter a medium that causes the wave to be sent back in the direction that it came from
  12. 26. Negative polarity
  13. 27. How fast a wave is moving
  14. 28. A circuit where the electricity has more than one pathway to travel
  15. 29. Current is measured in ______.
  16. 30. Maximum displacement of particles in the medium, from the equilibrium
Down
  1. 1. Material in which electrons tend to stay put and do not flow easily from atom to atom
  2. 2. Material in which electrons can move freely from atom to atom
  3. 3. Waves in which particles move both parallel and perpendicular to the wave motion
  4. 5. The practical unit of resistance
  5. 7. Periodically changes or reverses in polarity
  6. 10. When two waves approach each other from opposite directions
  7. 12. No medium is required in ________ _____.
  8. 13. Amount of actual charge being moved through the system
  9. 16. The practical unit of charge
  10. 17. Max possibility or the most significant amount
  11. 18. Any material through which a wave travels
  12. 22. Waves that roll along the surface
  13. 24. The number of cycles passing by in a given time
  14. 25. Distance from one crest to the very next crest