Astronomy college course/Unit 2 study guide

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AstroTest2_Study
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 * This document contains either a study guide OR pairs of exams taken from the same exam bank:
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AstroTest2_Study-v1s1
1. At 9am a new moon would be}
 * ___ a) overhead


 * ___ b) eastern horizon


 * ___ c) high in western sky


 * ___ d) below the western horizon


 * ___ e) high in eastern sky

2. At noon a waning gibbous moon would be}
 * ___ a) below the western horizon


 * ___ b) high in western sky


 * ___ c) western horizon


 * ___ d) nadir


 * ___ e) overhead

3. At 6pm a waxing crescent moon would be}
 * ___ a) high in western sky


 * ___ b) overhead


 * ___ c) western horizon


 * ___ d) nadir


 * ___ e) eastern horizon

4. At 6pm a waning crescent moon would be}
 * ___ a) western horizon


 * ___ b) nadir


 * ___ c) below the eastern horizon


 * ___ d) below the western horizon


 * ___ e) eastern horizon

5. At midnight a waning gibbous moon would be}
 * ___ a) high in eastern sky


 * ___ b) high in western sky


 * ___ c) below the western horizon


 * ___ d) eastern horizon


 * ___ e) western horizon

6. At 3pm a full moon would be}
 * ___ a) western horizon


 * ___ b) high in eastern sky


 * ___ c) nadir


 * ___ d) below the eastern horizon


 * ___ e) below the western horizon

7. At 6pm a waxing gibbous moon would be}
 * ___ a) high in eastern sky


 * ___ b) nadir


 * ___ c) western horizon


 * ___ d) below the western horizon


 * ___ e) eastern horizon

8. At 9am a waxing crescent moon would be}
 * ___ a) overhead


 * ___ b) nadir


 * ___ c) eastern horizon


 * ___ d) below the western horizon


 * ___ e) high in eastern sky

9. At 9pm a full moon would be}
 * ___ a) eastern horizon


 * ___ b) high in eastern sky


 * ___ c) below the western horizon


 * ___ d) nadir


 * ___ e) overhead

10. At 9pm a third quarter moon would be}
 * ___ a) below the western horizon


 * ___ b) high in western sky


 * ___ c) high in eastern sky


 * ___ d) nadir


 * ___ e) below the eastern horizon

11. ____ motion is in the usual direction, and _______ is motion that has temporarily reversed itself.
 * ___ a) indirect; direct


 * ___ b) retrograde; direct


 * ___ c) direct; elliptical


 * ___ d) direct; retrograde


 * ___ e) elliptical; retrograde

12. Under what conditions would a planet not seem to rise in the east and set in the west?
 * ___ a) if the planet is in elliptical motion


 * ___ b) if the observer is near the north or south poles


 * ___ c) if the planet is in retrograde motion


 * ___ d) if the planet is in direct motion


 * ___ e) if the observer is below the equator

13. When the faster moving Earth overtakes a slower planet outside Earth's orbit
 * ___ a) tidal forces can be observed on Earth


 * ___ b) two of these are true


 * ___ c) all of these are true


 * ___ d) tidal forces can be observed on the planet


 * ___ e) retrograde motion occurs

14. Which planet spends more days in a given retrograde?
 * ___ a) Mars


 * ___ b) It depends on the season


 * ___ c) Saturn


 * ___ d) They are all equal


 * ___ e) Earth

15. Which planet has more days between two consecutive retrogrades?
 * ___ a) It depends on the season


 * ___ b) They are all equal


 * ___ c) Earth


 * ___ d) Mars


 * ___ e) Saturn

16. A planet that is very, very far from the Sun would be in retrograde for approximately ___ months.
 * ___ a) 6


 * ___ b) 3


 * ___ c) 1


 * ___ d) 24


 * ___ e) 12

17. If a planet that is very, very far from the Sun begins a retrograde, how many months must pass before it begins the next retrograde?
 * ___ a) 1


 * ___ b) 24


 * ___ c) 3


 * ___ d) 6


 * ___ e) 12

18. Planet comes from the Greek word for 'wanderer'.
 * ___ a) true


 * ___ b) false

19. We know that Galileo saw Neptune, but is not credited with its discovery because
 * ___ a) it was too faint to be worth drawing


 * ___ b) none of these are true


 * ___ c) he never published his drawing


 * ___ d) it was in a transition between retrograde and direct motion


 * ___ e) he thought it was a moon of Saturn

20. Kepler began his career as a teacher of
 * ___ a) astronomy


 * ___ b) philosophy


 * ___ c) mathematics


 * ___ d) history


 * ___ e) theology

21. Kepler is also known for his improvements to
 * ___ a) the telescope


 * ___ b) a perpetual motion machine


 * ___ c) Ptolemy's star charts


 * ___ d) the abacus


 * ___ e) translations of the Bible

22. In Kepler's era, astronomy was usually considered a part of natural philosophy
 * ___ a) true


 * ___ b) false

23. In Kepler's era, astronomy was usually considered a part of mathematics
 * ___ a) true


 * ___ b) false

24. In Kepler's era, astronomy closely linked to astrology
 * ___ a) true


 * ___ b) false

25. In Kepler's era, physics (how and why things moved) was usually considered a part of natural philosophy
 * ___ a) true


 * ___ b) false

26. Kepler incorporated religious arguments and reasoning into his work
 * ___ a) true


 * ___ b) false

27. Kepler avoided religious arguments and reasoning in his work
 * ___ a) true


 * ___ b) false

28. How would one describe the status of Kepler's family when he was a child?
 * ___ a) of noble birth, but in poverty


 * ___ b) wealth and of noble birth


 * ___ c) wealthy but not of noble birth


 * ___ d) his father and grandfather were scientists


 * ___ e) neither wealthy nor of noble birth

29. As a child, Kepler's interest in astronomy grew as a result of
 * ___ a) a comet


 * ___ b) a lunar eclipse


 * ___ c) two of these


 * ___ d) a solar eclipse


 * ___ e) watching his uncle make a telescope

30. When Kepler's studies at the university were over, what he really wanted to do was
 * ___ a) become a minister


 * ___ b) visit Rome


 * ___ c) work with Tycho


 * ___ d) work with Newton


 * ___ e) visit Athens

31. Which of the following is NOT associated with Kepler's Laws
 * ___ a) planets farther from the Sun have longer orbital periods.


 * ___ b) elliptical paths for the planets


 * ___ c) circular motions with epicycles


 * ___ d) planets speed up as they approach the sun


 * ___ e) Earth orbits the sun

32. As a planet orbits the Sun, the Sun is situated at one focal point of the ellipse
 * ___ a) true


 * ___ b) false

33. As a planet orbits the Sun, the Sun is situated midway between the two focal points of the ellipse
 * ___ a) true


 * ___ b) false

34. Newton was able to use the motion of the Moon to calculate the universal constant of gravity, G
 * ___ a) true


 * ___ b) false

35. The force of (gravitational) attraction between you and a friend is small because neither of you possess significant mass
 * ___ a) true


 * ___ b) false

36. Cavendish finally measured G by carefully weighing the force between
 * ___ a) two lead balls


 * ___ b) Jupiter and moons


 * ___ c) Earth and Sun


 * ___ d) Sun and Moon


 * ___ e) Earth and Moon

37. The horizontal crack along the center of figure is a
 * ___ a) antipodal


 * ___ b) propodal


 * ___ c) meander


 * ___ d) scarp


 * ___ e) rille

38. Antipodal to Caloris Basin is
 * ___ a) a silicon deposits


 * ___ b) a water deposits


 * ___ c) an iron/nickel deposit


 * ___ d) a scarp


 * ___ e) weird terrain

39. A volatile is a substance that
 * ___ a) melts or evaporates at high temperature


 * ___ b) reacts violently with water


 * ___ c) reacts violently with acids


 * ___ d) melts or evaporates at low temperature


 * ___ e) reacts violently with oxygen

40. The four smaller inner planets, Mercury, Venus, Earth and Mars, also called the terrestrial planets, are primarily composed of ___ and ___.
 * ___ a) carbon and oxygen


 * ___ b) ice and gas


 * ___ c) ice and rock


 * ___ d) ice and water


 * ___ e) metal and rock

41. If the universe is mostly hydrogen, why aren't terrestrial planets made of mostly hydrogen?
 * ___ a) thermonuclear fusion in the protosun turned the hydrogen into helium


 * ___ b) tidal forces from the Sun prevented accretion


 * ___ c) tidal forces from Jupiter prevented accretion


 * ___ d) These planets lie inside the frost line for hydrogen


 * ___ e) tidal forces between the terrestrial planets prevented accretion

42. Mercury's atmosphere consists mostly of
 * ___ a) carbon dioxide


 * ___ b) nitrogen


 * ___ c) oxygen


 * ___ d) helium


 * ___ e) hydrogen

43. In what sequence did Mercury's weird terrain and Caloris basin form?
 * ___ a) The were formed at exactly the same time


 * ___ b) The weird terrain was formed almost immediately after the Caloris basin


 * ___ c) The weird terrain was formed approximately 2 billions years before the Caloris basin


 * ___ d) The weird terrain was formed approximately 2 billions years after the Caloris basin


 * ___ e) The weird terrain was formed a few millions years after the Caloris basin

44. Very far from the sun, the heliosphere
 * ___ a) becomes the magnetosphere


 * ___ b) becomes weaker than the interstellar wind


 * ___ c) spins in the opposite direction


 * ___ d) reverses direction


 * ___ e) never ends

45. A volatile is a substance that
 * ___ a) reacts violently with oxygen


 * ___ b) reacts violently with water


 * ___ c) reacts violently with acids


 * ___ d) melts or evaporates at low temperature


 * ___ e) melts or evaporates at high temperature

46. All planets lie within a nearly flat disc called the __________ plane
 * ___ a) fissile


 * ___ b) retrograde


 * ___ c) ecliptic


 * ___ d) interstellar


 * ___ e) angular

47. The AU is
 * ___ a) a measure of the brightness of a planet


 * ___ b) the distance from the Sun to Earth


 * ___ c) the distance from Earth to the Moon


 * ___ d) the size of Oort's cloud


 * ___ e) the most distant Kuiper object from the Sun

48. The Sun and Earth are about
 * ___ a) 50 billion years old


 * ___ b) 50 million years old


 * ___ c) 500 million years old


 * ___ d) 5 million years old


 * ___ e) 5 billion years old

49. The universe is about
 * ___ a) 1.5 billion years old


 * ___ b) 15 billion years old


 * ___ c) 15 million years old


 * ___ d) 150 million years old


 * ___ e) 150 billion years old

50. Roughly how much bigger is a gas planet than a terrestrial planet?
 * ___ a) 3


 * ___ b) 30


 * ___ c) 300


 * ___ d) 10


 * ___ e) 100

51. Roughly how much bigger is a the Sun than a gas planet?
 * ___ a) 30


 * ___ b) 3


 * ___ c) 10


 * ___ d) 300


 * ___ e) 100

52. According to Wikipedia, if all the mass of the asteroid belt were combined to one object, it's mass would _______ times less than Earth's mass.
 * ___ a) 100


 * ___ b) 1


 * ___ c) 10


 * ___ d) 10,000


 * ___ e) 1,000

53. In this hypothetical image of a sun-like star we see a bright band of dust that we on Earth call zodiacal light. It is due to sunlight reflecting off dust in the
 * ___ a) Van Allen belt


 * ___ b) Kuiper belt


 * ___ c) ecliptic plane


 * ___ d) magnetic sun's magnetic field


 * ___ e) Oort Cloude

54. In planetary science, the frost line refers to a distance away from
 * ___ a) the star in the middle


 * ___ b) the south pole of a planet


 * ___ c) ecliptic plane


 * ___ d) either pole of a planet


 * ___ e) the north pole of a planet

55. Oort's cloud was hypothesized to explain the source of
 * ___ a) asteroids


 * ___ b) comets


 * ___ c) water inside the frost line


 * ___ d) planets


 * ___ e) water outside the frost line

56. According to Wikipedia _______ and ______ are referred to as volatiles.
 * ___ a) electrons and protons


 * ___ b) ices and gasses


 * ___ c) asteroids and terrestrial planets


 * ___ d) planets and moons


 * ___ e) acids and bases

57. Which of the following list is properly ranked, starting with objects closest to the Sun?
 * ___ a) Oort's cloud, Asteroid belt, Kuiper belt


 * ___ b) Asteroid belt, Oort's cloud, Kuiper belt


 * ___ c) Kuiper belt, Oort's cloud, Asteroid belt


 * ___ d) Asteroid belt, Kuiper belt, Oort's cloud


 * ___ e) Kuiper belt, Asteroid belt, Oort's cloud

58. When the sun turns into a red giant,
 * ___ a) surface temperature increases; energy output decreases


 * ___ b) The sun will not turn into a red giant


 * ___ c) surface temperature decreases; energy output increases


 * ___ d) surface temperature increases; energy output increases


 * ___ e) surface temperature decreases; energy output decreases

59. In astrophysics, what is accretion?
 * ___ a) the growth of a comet's tail as it comes close to the Sun


 * ___ b) the growth of a massive object by gravitationally attracting more matter


 * ___ c) the increase in temperature and pressure of a star as it collapses from its own gravity


 * ___ d) the condensation of volatiles as a gas cools


 * ___ e) the growth in size of a massive star as its outer atmosphere expands

60. Dwarf planets are defined as objects orbiting the Sun and smaller than planets, that?
 * ___ a) lie in the asteroid belt


 * ___ b) have been rounded by their own gravity


 * ___ c) are too far from the Sun to be planets


 * ___ d) possess an atmosphere


 * ___ e) lack an atmosphere

61. Dwarf planets have no natural satellites,
 * ___ a) true


 * ___ b) false

62. Pluto is classified as
 * ___ a) a natural satellite of Uranus


 * ___ b) a natural satellite of Neptune


 * ___ c) a dwarf planet with no natural satellites


 * ___ d) a dwarf planet and a trans-Neptunian object.


 * ___ e) an asteroid belt object

63. How many of the outer planets have rings?
 * ___ a) 4


 * ___ b) 2


 * ___ c) 3


 * ___ d) 1

64. Currently there are 7 billion people on Earth, if that ever increases to 10 billion people, for every person on Earth there will be ____ stars in the Milky Way galaxy.
 * ___ a) 2


 * ___ b) 20


 * ___ c) 2000


 * ___ d) 200

65. The revolution of Haley's comet around the Sun is nearly circular.
 * ___ a) true


 * ___ b) false

66. The revolution of Haley's comet around the Sun is opposite that of the 8 planets.
 * ___ a) true


 * ___ b) false

67. The frost line is situated approximately
 * ___ a) 5 times as far from the Sun as the Earth is from the Sun


 * ___ b) 10 times as far from the Earth as the Earth's surface is from its center


 * ___ c) 5 times as far from the Earth as the Earth's surface is from its center


 * ___ d) 10 times as far from the Sun as the Earth is from the Sun

Key to AstroTest2_Study-v1s1
1. At 9am a new moon would be}
 * - a) overhead


 * - b) eastern horizon


 * - c) high in western sky


 * - d) below the western horizon


 * + e) high in eastern sky

2. At noon a waning gibbous moon would be}
 * + a) below the western horizon


 * - b) high in western sky


 * - c) western horizon


 * - d) nadir


 * - e) overhead

3. At 6pm a waxing crescent moon would be}
 * + a) high in western sky


 * - b) overhead


 * - c) western horizon


 * - d) nadir


 * - e) eastern horizon

4. At 6pm a waning crescent moon would be}
 * - a) western horizon


 * - b) nadir


 * - c) below the eastern horizon


 * + d) below the western horizon


 * - e) eastern horizon

5. At midnight a waning gibbous moon would be}
 * + a) high in eastern sky


 * - b) high in western sky


 * - c) below the western horizon


 * - d) eastern horizon


 * - e) western horizon

6. At 3pm a full moon would be}
 * - a) western horizon


 * - b) high in eastern sky


 * - c) nadir


 * + d) below the eastern horizon


 * - e) below the western horizon

7. At 6pm a waxing gibbous moon would be}
 * + a) high in eastern sky


 * - b) nadir


 * - c) western horizon


 * - d) below the western horizon


 * - e) eastern horizon

8. At 9am a waxing crescent moon would be}
 * - a) overhead


 * - b) nadir


 * + c) eastern horizon


 * - d) below the western horizon


 * - e) high in eastern sky

9. At 9pm a full moon would be}
 * - a) eastern horizon


 * + b) high in eastern sky


 * - c) below the western horizon


 * - d) nadir


 * - e) overhead

10. At 9pm a third quarter moon would be}
 * - a) below the western horizon


 * - b) high in western sky


 * - c) high in eastern sky


 * - d) nadir


 * + e) below the eastern horizon

11. ____ motion is in the usual direction, and _______ is motion that has temporarily reversed itself.
 * - a) indirect; direct


 * - b) retrograde; direct


 * - c) direct; elliptical


 * + d) direct; retrograde


 * - e) elliptical; retrograde

12. Under what conditions would a planet not seem to rise in the east and set in the west?
 * - a) if the planet is in elliptical motion


 * + b) if the observer is near the north or south poles


 * - c) if the planet is in retrograde motion


 * - d) if the planet is in direct motion


 * - e) if the observer is below the equator

13. When the faster moving Earth overtakes a slower planet outside Earth's orbit
 * - a) tidal forces can be observed on Earth


 * - b) two of these are true


 * - c) all of these are true


 * - d) tidal forces can be observed on the planet


 * + e) retrograde motion occurs

14. Which planet spends more days in a given retrograde?
 * - a) Mars


 * - b) It depends on the season


 * + c) Saturn


 * - d) They are all equal


 * - e) Earth

15. Which planet has more days between two consecutive retrogrades?
 * - a) It depends on the season


 * - b) They are all equal


 * - c) Earth


 * + d) Mars


 * - e) Saturn

16. A planet that is very, very far from the Sun would be in retrograde for approximately ___ months.
 * + a) 6


 * - b) 3


 * - c) 1


 * - d) 24


 * - e) 12

17. If a planet that is very, very far from the Sun begins a retrograde, how many months must pass before it begins the next retrograde?
 * - a) 1


 * - b) 24


 * - c) 3


 * - d) 6


 * + e) 12

18. Planet comes from the Greek word for 'wanderer'.
 * + a) true


 * - b) false

19. We know that Galileo saw Neptune, but is not credited with its discovery because
 * - a) it was too faint to be worth drawing


 * - b) none of these are true


 * - c) he never published his drawing


 * + d) it was in a transition between retrograde and direct motion


 * - e) he thought it was a moon of Saturn

20. Kepler began his career as a teacher of
 * - a) astronomy


 * - b) philosophy


 * + c) mathematics


 * - d) history


 * - e) theology

21. Kepler is also known for his improvements to
 * + a) the telescope


 * - b) a perpetual motion machine


 * - c) Ptolemy's star charts


 * - d) the abacus


 * - e) translations of the Bible

22. In Kepler's era, astronomy was usually considered a part of natural philosophy
 * - a) true


 * + b) false

23. In Kepler's era, astronomy was usually considered a part of mathematics
 * + a) true


 * - b) false

24. In Kepler's era, astronomy closely linked to astrology
 * + a) true


 * - b) false

25. In Kepler's era, physics (how and why things moved) was usually considered a part of natural philosophy
 * + a) true


 * - b) false

26. Kepler incorporated religious arguments and reasoning into his work
 * + a) true


 * - b) false

27. Kepler avoided religious arguments and reasoning in his work
 * - a) true


 * + b) false

28. How would one describe the status of Kepler's family when he was a child?
 * + a) of noble birth, but in poverty


 * - b) wealth and of noble birth


 * - c) wealthy but not of noble birth


 * - d) his father and grandfather were scientists


 * - e) neither wealthy nor of noble birth

29. As a child, Kepler's interest in astronomy grew as a result of
 * - a) a comet


 * - b) a lunar eclipse


 * + c) two of these


 * - d) a solar eclipse


 * - e) watching his uncle make a telescope

30. When Kepler's studies at the university were over, what he really wanted to do was
 * + a) become a minister


 * - b) visit Rome


 * - c) work with Tycho


 * - d) work with Newton


 * - e) visit Athens

31. Which of the following is NOT associated with Kepler's Laws
 * - a) planets farther from the Sun have longer orbital periods.


 * - b) elliptical paths for the planets


 * + c) circular motions with epicycles


 * - d) planets speed up as they approach the sun


 * - e) Earth orbits the sun

32. As a planet orbits the Sun, the Sun is situated at one focal point of the ellipse
 * + a) true


 * - b) false

33. As a planet orbits the Sun, the Sun is situated midway between the two focal points of the ellipse
 * - a) true


 * + b) false

34. Newton was able to use the motion of the Moon to calculate the universal constant of gravity, G
 * - a) true


 * + b) false

35. The force of (gravitational) attraction between you and a friend is small because neither of you possess significant mass
 * + a) true


 * - b) false

36. Cavendish finally measured G by carefully weighing the force between
 * + a) two lead balls


 * - b) Jupiter and moons


 * - c) Earth and Sun


 * - d) Sun and Moon


 * - e) Earth and Moon

37. The horizontal crack along the center of figure is a
 * - a) antipodal


 * - b) propodal


 * - c) meander


 * + d) scarp


 * - e) rille

38. Antipodal to Caloris Basin is
 * - a) a silicon deposits


 * - b) a water deposits


 * - c) an iron/nickel deposit


 * - d) a scarp


 * + e) weird terrain

39. A volatile is a substance that
 * - a) melts or evaporates at high temperature


 * - b) reacts violently with water


 * - c) reacts violently with acids


 * + d) melts or evaporates at low temperature


 * - e) reacts violently with oxygen

40. The four smaller inner planets, Mercury, Venus, Earth and Mars, also called the terrestrial planets, are primarily composed of ___ and ___.
 * - a) carbon and oxygen


 * - b) ice and gas


 * - c) ice and rock


 * - d) ice and water


 * + e) metal and rock

41. If the universe is mostly hydrogen, why aren't terrestrial planets made of mostly hydrogen?
 * + a) thermonuclear fusion in the protosun turned the hydrogen into helium


 * - b) tidal forces from the Sun prevented accretion


 * - c) tidal forces from Jupiter prevented accretion


 * - d) These planets lie inside the frost line for hydrogen


 * - e) tidal forces between the terrestrial planets prevented accretion

42. Mercury's atmosphere consists mostly of
 * - a) carbon dioxide


 * - b) nitrogen


 * - c) oxygen


 * - d) helium


 * + e) hydrogen

43. In what sequence did Mercury's weird terrain and Caloris basin form?
 * - a) The were formed at exactly the same time


 * + b) The weird terrain was formed almost immediately after the Caloris basin


 * - c) The weird terrain was formed approximately 2 billions years before the Caloris basin


 * - d) The weird terrain was formed approximately 2 billions years after the Caloris basin


 * - e) The weird terrain was formed a few millions years after the Caloris basin

44. Very far from the sun, the heliosphere
 * - a) becomes the magnetosphere


 * + b) becomes weaker than the interstellar wind


 * - c) spins in the opposite direction


 * - d) reverses direction


 * - e) never ends

45. A volatile is a substance that
 * - a) reacts violently with oxygen


 * - b) reacts violently with water


 * - c) reacts violently with acids


 * + d) melts or evaporates at low temperature


 * - e) melts or evaporates at high temperature

46. All planets lie within a nearly flat disc called the __________ plane
 * - a) fissile


 * - b) retrograde


 * + c) ecliptic


 * - d) interstellar


 * - e) angular

47. The AU is
 * - a) a measure of the brightness of a planet


 * + b) the distance from the Sun to Earth


 * - c) the distance from Earth to the Moon


 * - d) the size of Oort's cloud


 * - e) the most distant Kuiper object from the Sun

48. The Sun and Earth are about
 * - a) 50 billion years old


 * - b) 50 million years old


 * - c) 500 million years old


 * - d) 5 million years old


 * + e) 5 billion years old

49. The universe is about
 * - a) 1.5 billion years old


 * + b) 15 billion years old


 * - c) 15 million years old


 * - d) 150 million years old


 * - e) 150 billion years old

50. Roughly how much bigger is a gas planet than a terrestrial planet?
 * - a) 3


 * - b) 30


 * - c) 300


 * + d) 10


 * - e) 100

51. Roughly how much bigger is a the Sun than a gas planet?
 * - a) 30


 * - b) 3


 * + c) 10


 * - d) 300


 * - e) 100

52. According to Wikipedia, if all the mass of the asteroid belt were combined to one object, it's mass would _______ times less than Earth's mass.
 * - a) 100


 * - b) 1


 * - c) 10


 * - d) 10,000


 * + e) 1,000

53. In this hypothetical image of a sun-like star we see a bright band of dust that we on Earth call zodiacal light. It is due to sunlight reflecting off dust in the
 * - a) Van Allen belt


 * - b) Kuiper belt


 * + c) ecliptic plane


 * - d) magnetic sun's magnetic field


 * - e) Oort Cloude

54. In planetary science, the frost line refers to a distance away from
 * + a) the star in the middle


 * - b) the south pole of a planet


 * - c) ecliptic plane


 * - d) either pole of a planet


 * - e) the north pole of a planet

55. Oort's cloud was hypothesized to explain the source of
 * - a) asteroids


 * + b) comets


 * - c) water inside the frost line


 * - d) planets


 * - e) water outside the frost line

56. According to Wikipedia _______ and ______ are referred to as volatiles.
 * - a) electrons and protons


 * + b) ices and gasses


 * - c) asteroids and terrestrial planets


 * - d) planets and moons


 * - e) acids and bases

57. Which of the following list is properly ranked, starting with objects closest to the Sun?
 * - a) Oort's cloud, Asteroid belt, Kuiper belt


 * - b) Asteroid belt, Oort's cloud, Kuiper belt


 * - c) Kuiper belt, Oort's cloud, Asteroid belt


 * + d) Asteroid belt, Kuiper belt, Oort's cloud


 * - e) Kuiper belt, Asteroid belt, Oort's cloud

58. When the sun turns into a red giant,
 * - a) surface temperature increases; energy output decreases


 * - b) The sun will not turn into a red giant


 * + c) surface temperature decreases; energy output increases


 * - d) surface temperature increases; energy output increases


 * - e) surface temperature decreases; energy output decreases

59. In astrophysics, what is accretion?
 * - a) the growth of a comet's tail as it comes close to the Sun


 * + b) the growth of a massive object by gravitationally attracting more matter


 * - c) the increase in temperature and pressure of a star as it collapses from its own gravity


 * - d) the condensation of volatiles as a gas cools


 * - e) the growth in size of a massive star as its outer atmosphere expands

60. Dwarf planets are defined as objects orbiting the Sun and smaller than planets, that?
 * - a) lie in the asteroid belt


 * + b) have been rounded by their own gravity


 * - c) are too far from the Sun to be planets


 * - d) possess an atmosphere


 * - e) lack an atmosphere

61. Dwarf planets have no natural satellites,
 * - a) true


 * + b) false

62. Pluto is classified as
 * - a) a natural satellite of Uranus


 * - b) a natural satellite of Neptune


 * - c) a dwarf planet with no natural satellites


 * + d) a dwarf planet and a trans-Neptunian object.


 * - e) an asteroid belt object

63. How many of the outer planets have rings?
 * + a) 4


 * - b) 2


 * - c) 3


 * - d) 1

64. Currently there are 7 billion people on Earth, if that ever increases to 10 billion people, for every person on Earth there will be ____ stars in the Milky Way galaxy.
 * - a) 2


 * + b) 20


 * - c) 2000


 * - d) 200

65. The revolution of Haley's comet around the Sun is nearly circular.
 * - a) true


 * + b) false

66. The revolution of Haley's comet around the Sun is opposite that of the 8 planets.
 * + a) true


 * - b) false

67. The frost line is situated approximately
 * + a) 5 times as far from the Sun as the Earth is from the Sun


 * - b) 10 times as far from the Earth as the Earth's surface is from its center


 * - c) 5 times as far from the Earth as the Earth's surface is from its center


 * - d) 10 times as far from the Sun as the Earth is from the Sun


 * Attribution (for quiz questions) under CC-by-SA license
 * http://en.wikiversity.org/w/index.php?title=Astronomy_college_course/Lunar_Phases/Quiz(advanced)&oldid=1284517
 * http://en.wikiversity.org/w/index.php?title=Astronomy_college_course/Apparent_regrograde_motion/Quiz01&oldid=1284510
 * http://en.wikiversity.org/w/index.php?title=Astronomy_college_course/Kepler/Quiz01&oldid=1284523
 * http://en.wikiversity.org/w/index.php?title=Astronomy_college_course/Mercury/questions&oldid=1388427
 * http://en.wikiversity.org/w/index.php?title=Astronomy_college_course/Solar_system/Quiz&oldid=1388382
 * http://en.wikiversity.org/w/index.php?title=Astronomy_college_course/Solar_system/Quiz_2&oldid=1298068
 * Study guide
 * http://en.wikiversity.org/w/index.php?title=Astronomy_college_course/Lunar_Phases&oldid=1190185
 * http://en.wikipedia.org/w/index.php?title=User:Guy_vandegrift/Astronomy_college_course/Apparent_retrograde_motion&oldid=615635101
 * http://en.wikipedia.org/w/index.php?title=User:Guy_vandegrift/Astronomy_college_course/Kepler&oldid=615571371
 * http://en.wikiversity.org/w/index.php?title=Astronomy_college_course/Mercury&oldid=1381954
 * http://en.wikipedia.org/w/index.php?title=Solar_System&oldid=589452802