ASTRO 1 EXAM 4 2025 | COMPLETE QUESTIONS AND CORRECT ANSWERS | GRADED A+ | LATEST EXAM | VERIFIED ANSWERS

ASTRO 1 EXAM 4 2025 | COMPLETE QUESTIONS
AND CORRECT ANSWERS | GRADED A+ | LATEST
EXAM | VERIFIED ANSWERS

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Terms in this set (59)


The radius of the event A
horizon of the
supermassive black hole
at the center of the Milky
Way Galaxy is
A) about 100 Astronomical
Units.
B) There is no
supermassive black hole
at the center of the Milky
Way.
C) about 50 Megaparsecs
D) about 1000 light years
E) about 100,000 light
years

,How could the universe C
be accelerating, despite
the gravitational pull of all
the matter in it?
A) There's no friction in
space.
B) There could be less
dark matter than we think.
C) There could be a new
force or property of space
that affects the universe
on its largest scales. D)
Our laws of nature are
incorrect.
E) Probably B and C

The redshifts of galaxies C
are found to be larger
A) for galaxies that are
moving towards us.
B) for galaxies that are in
the Local Group than for
galaxies that are outside
of the Local Group. C) for
galaxies that are further
away.
D) for galaxies that are
older.
E) for dwarf galaxies than
for spiral galaxies.

, What is the difference C
between an E0 and an E7
galaxy?
A) There is no such thing
as an E0 galaxy.
B) The E7 has a circular
shape and E0 is oval.
C) The E7 has an oval
shape and the E0 is
circular. D) The E7 has a
larger disk than the E0.
E) The E7 has a smaller
disk than the E0.