Electromagnetic Radiation

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Across
  1. 1. At right angles to each other
  2. 4. Type of electromagnetic wave used to heat food
  3. 6. Electric and magnetic areas that make up EM waves
  4. 7. Used for communication technology
  5. 8. What happens to energy as it travels farther from its source
  6. 9. Matter that waves can travel through
  7. 11. Area of magnetic force around a magnet
  8. 12. What must move to begin an electromagnetic wave
  9. 13. Used in medicine to see inside the body
  10. 17. Energy produced when microwaves heat food
  11. 18. Waves made of vibrating electric and magnetic fields
  12. 19. Area of electric force around a charged particle
  13. 20. Occurs when waves bounce off a surface
  14. 22. Type of wave that moves perpendicular to direction of travel
Down
  1. 2. Occurs when waves spread out around obstacles
  2. 3. What happens when energy is taken in by matter
  3. 5. The transfer of energy by electromagnetic waves
  4. 8. Empty area where electromagnetic waves can travel
  5. 10. Main source of electromagnetic waves on Earth
  6. 14. Where electromagnetic waves originate
  7. 15. Motion that starts an electromagnetic wave
  8. 16. Bending of waves when entering a new medium
  9. 21. What electromagnetic waves transfer