Intro Astronomy Review

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Across
  1. 4. stars stars that never set in the sky
  2. 6. the moon phase that is at its highest point at 6pm
  3. 7. Believed planets orbited the Sun, but the Sun orbited Earth
  4. 10. moon phase that looks like the opposite of a crescent moon, with it appearing more than half illuminate on the right side of the moon
  5. 11. if you are located at fourty two degrees what is the altitude of the sun on the spring equinox at noon(3wrds)
  6. 12. Model placing Earth at the center of planetary motion
  7. 16. if you are located at forty two degrees north, then the north star will have an altitude of ___________(3wrds)
  8. 17. Model where Earth becomes just another planet
  9. 19. Explained retrograde motion as Earth passing outer planets when orbiting the sun
  10. 20. Newton's third law says, for every force there is an equal and _______ force
  11. 22. when looking at star trails, if you were at this location and looked towards the east the star trails would go straight up
  12. 23. Kepler's first law says that planets orbit in
  13. 24. Newton's second law says
  14. 26. the point in an orbit that the planet is closest to the sun
  15. 28. the time of the year when the sun reaches its highest point in the sky (2wrds)
  16. 30. if an object is in a stable circular orbit of 4000m/s, and it then goes 7000m/s the object will
  17. 31. spring tides occur during which two moon phases(3words)
  18. 32. the moon phase that starts the moon cycle
  19. 33. the point directly above your head no matter where you are on the earth
  20. 34. the north has summer when we are tilted towards the sun because we are physically closer to the sun then (true or false)
Down
  1. 1. only location on earth where there are no circumpolar stars
  2. 2. the fact that tycho did NOT view this when making his observations made him believe the earth did not move(2wrds)
  3. 3. In Kepler's laws, he explains that as a planet is closer in its orbit to the sun it will (2wrds)
  4. 5. Tycho did not believe the heaven's were perfect and unchanging because he observed 2 phenomena, these were (3words, second word is and)
  5. 8. when looking at star trails, if you were in the northern hemisphere, but looked towards the south you would see star trails moved in this pattern
  6. 9. galileo observed the orbit of moons around this planet
  7. 13. Ptolemey had these in his solar system model to explain observed retrograde motion
  8. 14. if a star rises in the northeast then it will set in the
  9. 15. Used Tycho’s data to discover elliptical orbits
  10. 18. the apparent backward motion of a planet in our sky over many days is called (2wrds)
  11. 21. locations on earth where all the stars are circumpolar
  12. 25. this type of tide is the largest tides
  13. 27. Circular motion added to explain retrograde motion in a geocentric model
  14. 29. galileo viewed this, which became his irrefutable evidence of a heliocentric system (2wrds)