It currently appears that within this universe we have mostly
A) neutrinos.
B) matter.
C) dark matter.
D) dark energy.
[Ques. 2] If heat death results in a maximum amount of entropy, then what does this say about entropy at the beginning of the universe?
A) Entropy at the beginning of the universe must also have been at a maximum.
B) There was a change in the direction of entropy flow about 7 billion years ago.
C) The Big Bang was a moment of minimal entropy.
D) Nothing.
[Ques. 3] Cosmology is the study of the overall structure and evolution of
A) the universe.
B) stars.
C) beauty.
D) galaxies.
[Ques. 4] Fire a cannonball from a cannon and it curves due to gravity. Shine a light from a flashlight and it
A) curves per second the same as the cannonball.
B) follows a straight-line path with no curvature at all.
C) curves half as much as the cannonball.
D) curves slightly, but not as much per second as the cannonball.
[Ques. 5] In a 1-g gravitational field, in 1 s, a light beam will curve beneath a perfectly straight line by
A) much less than 4.9 m.
B) about 4.9 m.
C) much more than 4.9 m.
[Ques. 6] Eternal Inflation refers to
A) the possibility that our universe is only a patch of a greater universe and that the process of universe spawning will continue forever.
B) the observation that cosmic inflation could eventually curve back in on itself, causing its opposite: the compression of space.
C) cosmic inflation inflating itself such that its own inflation is self-generating.
D) the presence of a distinct beginning of time.
[Ques. 7] The Large Megllanic Cloud is
A) a bright nebula within our galaxy.
B) an irregular galaxy colliding with the Milky Way.
C) the farthest known object visible to the naked eye in a clear night time sky.
D) an unusually bright planetary nebula.
[Ques. 8] Our local group is situated
A) within a major supercluster.
B) directly between two major superclusters.
C) relatively distant from any supercluster.
[Ques. 9] Which is smaller?
A) a local group
B) a local supercluster
[Ques. 10] Which is largest?
A) a galaxy
B) a local group
C) a Supercluster
D) the observable universe
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