5. Which statement below concerning the Jovian planets is incorrect?

a) The Jovian planets are composed primarily of hydrogen and helium.

b) The Jovian planets have lower densities than terrestrial planets.

c) The Jovian planets have longer orbital periods than terrestrial planets.

d) The Jovian planets have more satellites than terrestrial planets.

e) Correction: all of the above are correct.

6. Which of the following objects is not a Galilean satellite of Jupiter?

a) Mimas.

b) Io.

c) Ganymede.

d) Europa.

e) Callisto.

7. Which 2 types of seismic waves give us information about the interior of the planet?

a) P and Q.

b) R and S.

c) O and P.

d) P and S.

e) Q and R.

8. The types of seismic waves that can travel through liquid are:

a) O.

b) P.

c) Q.

d) R.

e) S.

9. On the Earth:

a) Ocean floor is generally younger than Continental material.

b) Ocean floor is generally older the Continental material.

c) Ocean floor is about the same age as Continental material.

d) There is no constant age relationship between Ocean floor and Continental material.

10. The magnetic field of Jupiter:

a) Is much weaker than Earth's magnetic field.

b) Is about the same strenght of Earth's magnetic field.

c) Is much stronger than Earth's magnetic field.

d) Has not yet been detected.

11. The interior planets in order of increasing (thicker) atmospheres are:

a) Mercury, Venus, Earth, Mars.

b) Mars, Mercury, Earth, Venus.

c) Mars, Mercury, Venus, Earth.

d) Mercury, Mars, Earth, Venus.

e) Mercury, Mars, Venus, Earth.

12. Earth's atmosphere is unique because it contains:

a) Carbon dioxide.

b) Nitrogen.

c) Oxygen.

d) Hydrogen.

e) Helium.

13. Which of the following satellites has a dense atmosphere of nitrogen?

a) Io.

b) Titan.

c) Enceladus.

d) Phobos.

e) None of the above.

14. Which atmospheric component is converted into rock by the oceans?

a) Carbon dioxide.

b) Nitrogen.

c) Oxygen.

d) Hydrogen.

e) Helium.

15. Compared to Earth's atmosphere the atmosphere on Venus is:

a) Venus atmosphere is thinner and colder than Earth.

b) Venus atmosphere is thicker and hotter than Earth.

c) Venus atmosphere is thinner and hotter than Earth.

d) Venus atmosphere is thicker and colder than Earth.

16. On the Earth:

a) Volcanoes are mostly located near plate boundaries.

b) Volcanoes are mostly located away from plate boundaries.

c) Volcanoes are evenly distributed across the planet.

d) There is no statistical pattern to the occurence of volcanoes.

17. On the Earth:

a) Craters are evenly distributed accross the planet.

b) There are more craters on the ocean floors.

c) There are more craters on the continents.

d) There are too few craters to make general statements.

18. Which of these satellites has the highest crater density?

a) Mimas.

b) Io.

c) Ganymede.

d) Europa.

e) Callisto.

19. Which of these satellites experiences large tides?

a) Mimas.

b) Io.

c) Ganymede.

d) Europa.

e) Callisto.

20. Most of the material in Jupiter is:

a) Silicates.

b) Hydrogen.

c) Water.

d) Helium.

e) None of the above.

21. Impact flux (impacts per time on a surface) is :

a) Thought to have been less in the early history of the solar system.

b) Thought to have been about the same as now in the early history of the solar system.

c) Thought to have been greater in the early history of the solar system.

d) Unknown in the early history of the solar system.

22. Beyond the orbit of Neptune:

a) Is the Kuiper Belt.

b) Is the Oort Cloud.

c) Are both, the Kuiper Belt and the Oort Cloud.

d) Is neither, the Kuiper Belt or the Oort Cloud.

23. Which of these statements about Io is correct?

a) It is noted for its sulfur volcanoes.

b) It lacks impact craters.

c) It has an overall rocky composition.

d) It has a garish red and yellow color.

e) All of the above.

24. Saturn is the planet:

a) At this time furthest from the Sun.

b) With the lowest density.

c) Strongly marked with belts and zones.

d) Whose moons orbit highly inclined to the ecliptic.

e) That is icy with a thin atmosphere.

25. Jupiter is the planet:

a) At this time furthest from the Sun.

b) With the lowest density.

c) Strongly marked with belts and zones.

d) Whose moons orbit highly inclined to the ecliptic.

e) That is icy with a thin atmosphere.

26. The reason planetary rings are always so close to the body of the planet is:

a) Matter in them is boiled out of the planet's atmosphere.

b) The planet's gravity is stronger there and can help hold them together.

c) The planet's gravity is weakest there and prevents them from clotting up.

d) The planet's gravity is large enough there to disrupt medium size bodies and

keep the pieces spread out.

e) None of the above.

27. Which of these statements is the most accurate (ie comes closest to the truth)?

a) Jupiter is more massive than the terrestrial planets.

b) Jupiter is more massive than Saturn.

c) Jupiter is more massive than Saturn, Uranus and Neptune combined.

d) Jupiter is more massive than all planets combined.

28. A layer of metallic hydrogen can be found inside how many planets:

a) 0.

b) 1.

c) 2.

d) 3.

e) 4.

29. The first planet to be discovered by a mathematical prediction was:

a) Jupiter.

b) Saturn.

c) Uranus.

d) Neptune.

e) Pluto.

30. Saturn's density is:

a) Less than that of Jupiter.

b) More than that of Jupiter.

c) Similar to the Earth's.

d) Greater than that of Earth.

e) [Two of the above].

31. Ring systems have been discovered around:

a) Saturn only.

b) Jupiter and Saturn.

c) Jupiter, Saturn, and Uranus.

d) All of the Jovian planets.

32. The asteroid belt lies between the orbits of:

a) Mars and Jupiter.

b) Jupiter and Saturn.

c) Saturn and Uranus.

d) Uranus and Neptune.

e) Mercury and the Sun.

33. The rings of Saturn are probably made of:

a) Hot gas bound to the planet by gravity and inside Roche's limit.

b) Chunks of rock many miles in diameter captured from the asteroid belt.

c) An immense solid disk of ice partially melted at Cassini's division by heat generated

by Saturn.

d) Numerous small icy pieces, yards to inches in diameter, each moving in its own orbit.

e) None of the above.

34. Which satellite looks most like the "Death Star" in Star Wars?

a) Dione.

b) Iapetus.

c) Mimas.

d) Titus.

e) Tethys.

35. Which planet was the first discovered in modern times?

a) Jupiter.

b) Saturn.

c) Uranus.

d) Neptune.

e) Pluto.

36. Which Planet has an overall density that is less than that of water?

a) Jupiter.

b) Saturn.

c) Uranus.

d) Neptune.

e) More than one planet.

37. The rings seen around the Jovian planets lie:

a) Inside the planet's upper atmosphere.

b) Inside the planet's Roche Limit.

c) Near the planet's second orbit focus.

d) At the place where the planet's and Sun's gravity cancel out exactly.

e) None of the above.

38. Which planet has a spin axis at 90 degrees from the normal solar system orientation?

a) Jupiter.

b) Saturn.

c) Uranus.

d) Neptune.

e) Pluto.

39. The moon of which planet may have been blown apart and reformed?

a) Jupiter.

b) Saturn.

c) Uranus.

d) Neptune.

e) Pluto.

40. The moon of which planet has a dense Nitrogen atmosphere?

a) Jupiter.

b) Saturn.

c) Uranus.

d) Neptune.

e) Pluto.

41. The Cosmic abundance curve has a strong significant peak at:

a) Oxygen.

b) Silicon.

c) Iron.

d) Uranium.

e) Gold.

42. During the formation of the solar system:

a) The outer portion spun faster and was cooler than the inner portion.

b) The inner portion spun faster and was hotter than the outer portion.

c) The outer portion spun slower and was hotter than the inner portion.

d) The inner portion spun slower and was cooler than the outer portion.

43. Which of the following satellites has a relatively dense atmosphere?

a) Titan.

b) Ganymede.

c) Callisto.

d) Triton.

e) Io.

44. ___________ has a set of rings.

a) Jupiter.

b) Saturn.

c) Uranus.

d) Pluto.

e) Applicable to more than one planet listed.

45. Winds in its atmosphere have created a huge vortex called the great red spot:

a) Jupiter.

b) Saturn.

c) Uranus.

d) Pluto.

e) Applicable to more than one planet listed.

46. By which means does the interior of the Earth rid itself of thermal energy?

a) Conduction.

b) Convection.

c) Radiation.

d) Tidal action.

47. The names of the planets in order of their usual distance from the Sun are:

a) Mercury, Venus, Earth, Jupiter, Mars, Neptune, Uranus, Pluto.

b) Venus, Mercury, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto.

c) Venus, Mercury, Earth, Mars, Jupiter, Saturn, Neptune, Uranus, Pluto.

d) Mercury, Mars, Venus, Earth, Saturn, Jupiter, Neptune, Uranus, Pluto.

e) Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto.

48. Compared to Jovian planets, terrestrial planets have a:

a) More rocky composition.

b) Lower density.

c) More rapid rotation.

d) Larger size.

e) [More than one of the above].

49. Differentiation refers to:

a) Planets forming two types around the Sun.

b) The creation of the primordial background radiation.

c) The settling of heavy elements - like iron - to the center of an object.

d) The break up of the Earth's crust into plates that move.

e) None of the above.

50. Ring systems have been discovered around:

a) Saturn only.

b) Jupiter and Saturn.

c) Jupiter, Saturn, and Uranus.

d) All of the Jovian planets.