23.1 Telescopes Review

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Across
  1. 2. Short wave EM radiation that comes from very hot sources; allows us to see inside our bodies.
  2. 6. Type of EM radiation with waves longer than red light.
  3. 9. The distance that light travels in one year.
  4. 10. Radiation that travels as a wave; oscillations of electric and magnetic fields.
  5. 14. Device that separates light from a source into its individual wavelengths, telling us what the source is made of.
  6. 17. Hubble, Spitzer, Compton, Chandra; telescopes not limited by Earth's atmosphere,
  7. 20. telescope A type of telescope that uses both mirrors and lenses.
Down
  1. 1. _____ rays have the shortest wavelength and highest frequency.
  2. 3. The form of EM radiation that has the longest wavelength, and lowest frequency.
  3. 4. The distance between the peaks of an EM oscillation.
  4. 5. EM radiation with waves longer than visible light, used for cooking.
  5. 7. Telescopes that use a large dish antenna to detect faint radiation from distant objects in the universe.
  6. 8. A person who explores the universe beyond Earth.
  7. 11. A pattern fprmed by a group of stars; resembles a mythological figure.
  8. 12. The number of waves that pass a fixed point each second.
  9. 13. Telescope type first invented by Newton; use mirrors to gather light.
  10. 15. Telescope type first used by Galileo for astronomy; use lenses to gather light.
  11. 16. ROYGBIV
  12. 18. Objects in our solar system Greek for "wandering star".
  13. 19. Shortwave EM radiation just past the short end of the visible spectrum.