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