NAME:___________________________________

 Sample Third Exam

Note, this covers some of the material from the second exam too. The actual third exam will not have that problem.

MARK YOUR ANSWERS ON THIS SHEET AND TURN IT IN.

c=3x10¹⁰         G=6.7x10^-8      h=6.6x10-27     s=5.7x10^-5

1pc=3x10¹⁸cm             1AU=1.5x10¹³cm        M_sun=2x10³³g               R_sun=7x10¹⁰cm

                            F=ma                    x=vt                 v=at

 MULTIPLE CHOICE 

MULTIPLE CHOICE (2 points each)

 _____ 1. The period of the solar cycle is:
  a) One day  b) 35 days  c) one year  d) 11 years  e) 25,000 years

_____ 2. You are standing beside a volcano spewing sulphur dioxide.  The temperature is 450C.  Where are you?
a)Mercury            b)Venus           c)Earth             d)Moon          e)Io

 _____ 3. You are standing beside an active volcano.  The atmosphere consists of nitrogen and oxygen with traces of carbon dioxide.            Where are you?
a)Venus            b)Earth            c)Mars             d)Io            e)Titan

 _____ 4.  You are standing on the rim of a great canyon.  Behind you looms a dormant volcano.  Suddenly a giant sand storm kicks up.  You take off your mask to see better and asphyxiate.  Where were you?
a)Venus            b)Earth            c)Mars             d)Titan             e)Ganymede

_____ 5.  You are standing beside a methane ocean.  There is little to see because there is smog in all directions.  Where are you?
a)Venus            b)Earth            c)Mars             d)Titan             e)Ganymede

_____ 6.  Which body in the solar system looks the most like our Moon?
a) Mercury  b) Venus c) Mars  d) Titan  e) Charon

_____ 7. Cassini is a NASA mission to which planet?
a) Venus  b) Mars  c) Jupiter  d) Saturn  e) Pluto

_____ 8. How many moons does Venus have?
a) 0  b) 1  c) 2  d)  3  e) 12

_____ 9. How many moons does Mars have?
a) 0  b) 1  c) 2  d)  3  e) 12

_____ 10. Which planet is brilliant blue, has white clouds, and a Great Dark Spot?
a) Earth  b) Jupiter  c) Saturn  d) Neptune  e) Pluto

_____ 11. A rille is caused by:
a) water flow  b) meteor impact  c) lava flow  d) plate tektonics

_____ 12. The only planet not yet visited by a space probe is:
a) Mercury  b) Uranus  c) Neptune  d) Pluto

_____ 13. Which of these planets has no known ring system?
a) Jupiter  b) Saturn  c) Uranus  d) Neptune  e) Pluto

_____ 14. Which body other than Earth has polar caps?
a) Mercury  b) Venus  c) Mars  d) Titan  e) Ganymede

_____ 15. What is the primary constituent of the polar caps in problem 14?
a) ammonia  b) methane  c) water  d) nitrogen  e) carbon dioxide

_____ 16. How long is nighttime on the north pole of Uranus?
a) 5 hours  b) 12 hours  c) one week  d) 42 years

_____ 17. A torus of hot gas surrounds which planet?
a) Venus  b) Jupiter  c) Pluto  d) Earth  e) Saturn

_____ 18. Which body has an atmosphere that freezes out at aphelion?
a) Mars  b) Ganymede  c) Titan  d) Triton  e)  Pluto

_____ 19. What is the most common element in the atmosphere of a gas giant?
a) hydrogen  b) helium  c) nitrogen  d) oxygen   e) methane

_____ 20. What gas gives the bluish appearance to some of the gas giants?
a) hydrogen  b) helium  c) nitrogen  d) oxygen   e) methane

Answers: 1d,2b,3b,4c,5d,6a,7d,8a,9c,10d,11c,12d,13e,14c,15e,16d,17b,18e,19a,20e