Astro 101- Test 2 study - 1. a) 2.?d) 3.

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1. Which statement about the rotation of the Inner planets is true?  a) Venus rotates in the opposite direction from the three others. 2. Which of the following is TRUE? d)  Mercury rotates exactly  one and a half times for every one revolution around the Sun.  3. Why do the orbits of the planets all lie in nearly the same plane?  c)  The early solar nebula flattened into a disk.  4. Of these choices, which planet has the most moons? Saturn 5. Venus is visible to us: A) only near sunrise or sunset 6. A planet is in orbit around the sun.  The semimajor axis of the orbit is 5 astronomical units (AU) use  P^2=a^3 to calc   11.2 years 7. How do most craters on moons form?  Impact of asteroids 8. Which is largest? Jupiters moon Ganymede 9. Which planet has a temperature of 800 degrees Fahrenheit on  the side facing the Sun and -290 degrees Fahrenheit on the side  opposite the Sun?   e) Mercury  10. How many Earth years does it take Uranus to orbit the Sun? 84 11. Meteors are a)  asteroids or comet debris that passes into  Earth’s atmosphere and burns up  12. Which feature of Neptune is most responsible for its blue  color? a) methane in its atmosphere 13.  Which is TRUE?    b)  The planet Uranus is blue-green and virtually  featureless. 
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14. The surface of Venus is hotter than the surface of Mercury 
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  • Spring '08
  • MILLER,DAVIDEMAN
  • Atmosphere, Planet, venus rot time

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