Download Formation of the Sun and Planets Quiz

Formation of the Sun and Planets Quiz
1) The Solar System formed nearly _________ years ago
a) 100 billion
b) 5 million
c) 5 billion
d) 3 thousand
2) The major bodies of the solar system formed
a) At the same time.
b) In this order: sun, inner planets, outer planets, asteroids, comets.
c) In this order: asteroids, comets, sun, outer planets, inner planets.
d) From a black hole.
3) A nebula is
a) A newly formed star
b) The material that was left over from the Big Bang
c) A giant cloud of dust and gas
d) None of these
4) The nebular was drawn together by gravity, which released kinetic energy.
a) True
b) False
5) The sun formed in the center of the nebula because
a) Most of the cloud’s mass migrated to the center.
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b) The density at the center was extreme.
c) Hydrogen and helium were present and nuclear fusion began.
d) All of these.
6) The planets formed because
a) Clumps of material continued to collide due to gravity.
b) The burning sun flung molten material off into orbit.
c) Solid material precipitated out of the gases that orbited the sun.
d) None of these.
7) The planets are sorted by density outward from the Sun because of
a) Centrifugal force
b) Angular momentum
c) The planetary orbits
d) Gravity
8) The inner planets are made primarily of
a) Dense rock and metal.
b) Gases and ices.
c) Hydrogen, helium, water, ammonia and methane.
d) All of the above
9) The nebular hypothesis explains why
a) The planets orbit the sun in different planes.
b) The oldest rocks scientists have dated are about the same age.
c) Half the planets revolve clockwise and half the opposite.
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d) All of these.
10) Materials that on Earth are liquids or gases are solids in the outer planets.
a) True
b) False
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