SPACE QUIZ

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Across
  1. 3. A band of radio frequencies assigned for a particular purpose, usually for the establishment of one complete communication link, or a path for an electrical signal
  2. 5. Device that while selectively passing desired frequencies removes undesired ones.
  3. 8. The Doppler effect (or the Doppler shift) is the change in frequency or wavelength of a wave (or other periodic event) for an observer moving relative to its source.
  4. 10. A large body in outer space that circles around the sun or another star.
  5. 11. A force that pulls matter together.
  6. 12. A nozzle is a device designed to control the direction or characteristics of a fluid flow (especially to increase velocity) as it exits (or enters) an enclosed chamber
  7. 15. Move in a circle on a central axis.
  8. 17. The process by which one substance takes in or absorbs another.
  9. 20. The point in the sky or celestial sphere directly above an observer.
  10. 22. The propulsive force developed by a rocket motor during the rocket's powered ascent.
Down
  1. 1. The distance north or south of the equator, measured in degrees. The angle between a perpendicular at a location, and the equatorial plane of the Earth.
  2. 2. moveable surface on the horizontal stabilizer of an aircraft. The surface is responsible for pitch control.
  3. 4. A very energetic and distant active galactic nucleus, with a supermassive black hole at its center. Compact area in the center of a massive galaxy that is around a supermassive black hole. They are some of the brightest objects in the universe and can be observed across the entire electromagnetic spectrum.
  4. 6. A mountain or hill that has an opening where lava, rock fragments, or gas erupt from deep inside a planet or moon.
  5. 7. Study of objects moving through the air that have been given a short lived acceleration.
  6. 9. A natural motion of the air, especially a noticeable current of air moving in the atmosphere parallel to the Earth's surface.
  7. 13. A small body of matter from outer space that enters the Earth’s atmosphere, becoming incandescent as a result of friction and appearing as a streak of light. The streak of light caused when a meteoroid enters a planet’s atmosphere and starts to burn from the heat of friction
  8. 14. Each of the four divisions of the year (spring, summer, autumn, and winter) marked by particular weather patterns and daylight hours, resulting from the earth's changing position with regard to the sun.
  9. 16. The nozzle and valve through which fuel is sprayed into a combustion chamber.
  10. 18. An almost colorless, gaseous form of oxygen with an odor similar to weak chlorine.
  11. 19. All of space and time, and everything in it. It’s everything ever!
  12. 21. Precipitation composed of balls or irregular lumps of ice. Hail is produced when large frozen raindrops, or almost any particles, in cumulonimbus clouds act as embryos that grow by accumulating supercooled liquid droplets.