Astronomy college course/Solar system/Quiz 2

Astronomy_college_course

AstroWikipSolSys2_Study
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AstroWikipSolSys2_Study-v1s1
/1/. In astrophysics, what is accretion?
 * ___ a) the increase in temperature and pressure of a star as it collapses from its own gravity


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


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


 * ___ d) the growth of a comet's tail as it comes close to the Sun


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

/2/. Dwarf planets are defined as objects orbiting the Sun and smaller than planets, that?
 * ___ a) have been rounded by their own gravity


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


 * ___ c) lie in the asteroid belt


 * ___ d) lack an atmosphere


 * ___ e) possess an atmosphere

/3/. Dwarf planets have no natural satellites,
 * ___ a) true


 * ___ b) false

/4/. Pluto is classified as
 * ___ a) a dwarf planet with no natural satellites


 * ___ b) an asteroid belt object


 * ___ c) a natural satellite of Neptune


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


 * ___ e) a natural satellite of Uranus

/5/. How many of the outer planets have rings?
 * ___ a) 4


 * ___ b) 3


 * ___ c) 2


 * ___ d) 1

/6/. 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) 20


 * ___ b) 200


 * ___ c) 2


 * ___ d) 2000

/7/. The revolution of Haley's comet around the Sun is nearly circular.
 * ___ a) true


 * ___ b) false

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


 * ___ b) false

/9/. 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 Sun as the Earth is from the Sun


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


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

Key to AstroWikipSolSys2_Study-v1s1
/1/. In astrophysics, what is accretion?
 * - a) the increase in temperature and pressure of a star as it collapses from its own gravity


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


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


 * - d) the growth of a comet's tail as it comes close to the Sun


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

/2/. Dwarf planets are defined as objects orbiting the Sun and smaller than planets, that?
 * + a) have been rounded by their own gravity


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


 * - c) lie in the asteroid belt


 * - d) lack an atmosphere


 * - e) possess an atmosphere

/3/. Dwarf planets have no natural satellites,
 * - a) true


 * + b) false

/4/. Pluto is classified as
 * - a) a dwarf planet with no natural satellites


 * - b) an asteroid belt object


 * - c) a natural satellite of Neptune


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


 * - e) a natural satellite of Uranus

/5/. How many of the outer planets have rings?
 * + a) 4


 * - b) 3


 * - c) 2


 * - d) 1

/6/. 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) 20


 * - b) 200


 * - c) 2


 * - d) 2000

/7/. The revolution of Haley's comet around the Sun is nearly circular.
 * - a) true


 * + b) false

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


 * - b) false

/9/. 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 Sun as the Earth is from the Sun


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


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


 * Attribution (for quiz questions) under CC-by-SA license
 * http://en.wikiversity.org/w/index.php?title=Astronomy_college_course/Solar_system/Quiz_2&oldid=1298068
 * Study guide
 * http://en.wikipedia.org/w/index.php?title=Solar_System&oldid=589452802