ASTR 111 Lecture Notes - Lecture 5: Terrestrial Planet, Kilogram, Solar Wind
31 Oct 2016
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ASTR 111 Solar System Formation Quiz Answers
Question 1
1.
What changes happened in the solar nebula as it shrank in size?
its mass temperature and density all increased
It got hotter, its rate of rotation increased, and it flattened into a disk.
Hot metal and rocks rained down in the inner solar system, gas formed an impenetrable
cloud in the outer solar system and ices migrated out beyond what would become the
orbit of Jupiter
Its gas clumped up to form the terrestrial planets, nuclear fusion produced heavy elements
to make the jovian planets, and central temperatures rose to more than a trillion Kelvin.
1 points
Question 2
1.
What percentage of the mass of the solar system nebula consisted of elements other than hydrogen and
helium?
Twenty percent
Two tenths of a percent
Two percent
Fifty percent
1 points
Question 3
1.
Which of the following predictions is not supported by the nebular theory
differences in composition between terrestrial and Jovian planets
craters on Mercury
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Document Summary
What changes happened in the solar nebula as it shrank in size? its mass temperature and density all increased. It got hotter, its rate of rotation increased, and it flattened into a disk. Hot metal and rocks rained down in the inner solar system, gas formed an impenetrable cloud in the outer solar system and ices migrated out beyond what would become the orbit of jupiter. Its gas clumped up to form the terrestrial planets, nuclear fusion produced heavy elements to make the jovian planets, and central temperatures rose to more than a trillion kelvin. Which of the following predictions is not supported by the nebular theory differences in composition between terrestrial and jovian planets craters on mercury equal numbers of jovian and terrestrial planets planets orbiting the sun in nearly circular orbits. They are leftover planetesimals that never accreted into planets. They are the remmants of collions between moons.
