Electromagnetic Radiation

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Across
  1. 5. energy transferred by an electromagnetic wave
  2. 7. sealed vacuum tube in which one or more beams of electrons are produced
  3. 8. high energy wave often used in medicine
  4. 11. very highest frequency energy wave
  5. 12. global positioning system; provides us with directions and position on the planet
  6. 13. broadcasts information by varying a waves amplitude
  7. 14. part of the electromagnetic spectrum we can see
  8. 15. broadcasts information by varying a waves frequency
  9. 16. a specific frequency of a wave assigned to a radio station
Down
  1. 1. we detect this wave as thermal energy
  2. 2. transmits one radio wave and receives another from a base unit
  3. 3. energy wave that causes damage to DNA; gives us a sun burn
  4. 4. created when electricity is run through a wire
  5. 5. low frequency wave with the longest length
  6. 6. made by vibrating electrical charges and can move through space
  7. 9. a packet of energy emitted by the sun
  8. 10. low frequency wave often used for communication