Waves Forces and Radiation

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 2. German physicist who was the first to produce electromagnetic waves artificially (5)
  2. 6. A very light colorless element that is one of the six inert gasses (6)
  3. 7. What lets us see; the opposite of dark (5)
  4. 9. The path described by one celestial body in its revolution about another (plural) (6)
  5. 10. Energy that travels in waves or particles (9)
  6. 12. Kitchen appliance that cooks food by passing an electromagnetic wave through it (plural) (10)
  7. 13. Of or having a geosynchronous orbit such that the position in such an orbit is fixed with respect (13)
  8. 14. An arrangement of parts or elements (plural) (14)
  9. 15. The maximum displacement of a periodic wave (9)
  10. 16. Any of the nine large celestial bodies in the solar system that revolve around the sun and shine (plural) (7)

Down

  1. 1. The change in direction of a propagating wave when passing from one medium to another (plural) (11)
  2. 3. The activity of ___ (13)
  3. 4. Electromagnetic radiation emitted during radioactive decay and having an extremely short wavelength (plural) (9)
  4. 5. Displaying numbers rather than scale positions (7)
  5. 8. Twinkling lights in the night sky (5)
  6. 11. Any celestial body orbiting around a planet or star (plural) (10)