Universe Unit Test Review Question Preview (ID: 51023)
4th Test.
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What is good evidence that supports the Big Bang Theory?
a) The ratios of hydrogen and helium in the universe match those of the early universe.
b) Dark matter makes up the majority of matter in the galaxy.
c) Small spiral galaxies become larger elliptical galaxies when they collide.
d) The universe began as a very high density singularity.
How would you know that a blue shift has occurred?
a) a distant luminous object travels rapidly towards an observer.
b) a distant luminous object travels rapidly away from an observer.
c) a luminous object travels alongside an observer.
d) a luminous object is stationary compared to an observer.
If the universe is cooling how does that provide evidence to the Big Bang Theory
a) The universe is warming which, according to the Big Bang Theory, is expected to happen as the cosmos disperses.
b) The universe is cooling which, according to the Big Bang Theory, is expected to happen as the cosmos disperses.
c) The universe is warming which, according to the Big Bang Theory, is expected to happen as the cosmos accumulates.
d) The universe is cooling which, according to the Big Bang Theory, is expected to happen as the cosmos accumulates
What is the importance of dark matter and development of the universe?
a) without dark matter structures would not have formed and therefore no galaxies
b) Dark matter was used to create the sun and without the sun no universe
c) Dark matter helps prevent the presence of black holes and therefore the universe was able to be created
d)
How is Cosmic Microwave Background radiation evidence supportive of the Big Bang Theory
a) Its temperature is uniform.
b) Its mass fluctuates greatly.
c) Its mass is uniform.
d) Its temperature fluctuates greatly.
A redshift supports the idea of the Big Bang Theory but what does a redshift mean?
a) The universe is mainly hydrogen.
b) The universe is expanding.
c) The universe is cooling off.
d) The universe is 13.8 billion years old.
How is dark energy and the Big Bang related?
a) It seeded the formation of galaxies and star clusters.
b) It causes the universe to expand.
c) It causes the spinning of galaxies.
d) It causes the expansion of the universe to accelerate.
If dark matter is creating gravitational lensing what might a scientist see in the telescope?
a) blueshifts
b) redshifts
c) arcs of light around a galaxy
d) dark matter near a star
If background radiation is weak and coming from every direction how does that support the Big Bang Theory
a) It provides evidence of the universe's increasing mass.
b) It provides evidence of universe contraction.
c) It provides evidence of universe expansion.
d) It provides evidence of the universe's decreasing mass.
Which statements about nuclear fusion are false?
a) Nuclear fusion takes place in the cores of stars.
b) The fuel for nuclear fusion is often uranium.
c) Nuclear fusion releases large amounts of energy.
d)
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