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ASTRO 205 (Universe Science) 130 MULTIPLE QUESTIONS AND ANSWERS ACCURATELY ANSWERED A+ GRADED
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ASTRO 205 (Universe Science) 130 MULTIPLE QUESTIONS AND ANSWERS ACCURATELY ANSWERED A+ GRADED
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ASTRO 205 (Universe Science) 130 MULTIPLE QUESTIONS AND ANSWERSACCURATELY ANSWERED A+ GRADED
1. The first stars to form in our galaxy had B
a - circular orbits
b - highly elliptical orbits
c - all had orbits in the same plane
d - were Population I stars
e - were Population II stars
2. The most likely theories to explain the spiral structure e
of spiral galaxies are
a - accretion disks and Kelperian rotation
b - self-sustaining star formation and Kelperian rota-
tion
c - the Copernican hypothesis and differential rota-
tion
d - the solar nebula hypothesis and central conden-
sation law
e - self-sustaining star formation and density wave
theory
3. is an irregular galaxy that is believed to have b
collided with the Milk Way and is expected to merge
with the Milky Way in the future
a - The Andromeda galaxy
b - The Small Magellanic Cloud
c - M87
d - The Virgo cluster
e - The Antennae galaxy
4. The discovery of the gravitation lens effect for c
quasars
a - shows that quasars were located within the local
group of galaxies
b - shows that quasars were giant elliptical galaxies
located at very great distances
c - shows that quasars are much farther away than
the distant galaxy that forms the gravitational lens
d - proves Newton's theory of gravitation by showing
that photon is affected by gravity
, ASTRO 205 (Universe Science) 130 MULTIPLE QUESTIONS AND ANSWERS
ACCURATELY ANSWERED A+ GRADED
e - proves Newton's theory of gravitation by showing
that the electron is affected by gravity
5. The condensation hypothesis for the formation of the c
moon suggests that the moon and Earth formed as a
double planet from the same cloud within the solar
nebula. This hypothesis predicts that
a - the moon and the Earth should have nearly the
same mass and radius
b - the surfaces of the moon and Earth should be very
similar and show evidence of plate tectonics
c - the moon and the Earth should have identical
compositions and densities
d - the moon and Earth will be tidally locked in orbit
e - the moon and Earth will be similarly shaped
6. Which of these below may have organic particles on B
its surface as a result of the interaction of sunlight
with methane in its upper atmosphere?
a - Io
b - Titan
c - Hyperion
d - Ganafrede
e - Callisto
7. The oldest rocks found on Earth are about c
years old
a - 6.3 billion
b - 5.3 billion
c - 4.3 billion
d - 3.9 billion
e - 2.2 billion
8. Star A: apparent visual magnitude 13.4. A
Star B: apparent visual magnitude 15.4
Solve for the difference.
a - Star A is brighter than Star B
b - Star A is fainter than Star B
, ASTRO 205 (Universe Science) 130 MULTIPLE QUESTIONS AND ANSWERS
ACCURATELY ANSWERED A+ GRADED
9. Kepler's Second Law of Planetary Motion implies that a
a - a planet should move at it greatest speed when it
is closest to the sun
b - the distance that a planet is from the sun depends
on the mass of the planet
c - uniform circular motion is adequate to describe
the motion of all planets
d - the distance between the planet and the sun
changes as the planet orbits the sun
e - the orbits of the planets are ellipses with the sun
as one of the foci
10. Compared with the spectral lines in the solar spec- a
trum, lines in a supergiant spectrum are
a - narrower
b - broader
c - weaker
d - stronger
e - red shifted
11. In an H-R Diagram, stars with the smallest radius are d
found in the of the diagram
a - centre
b - upper left
c - upper right
d - lower left
e - lower right
12. Luminosity class IV stars are c
a - white dwarfs
b - main sequence stars
c - subgaints
d - giants
e - bright gaints
13. Luminosity class II stars are d
a - white dwarfs
b - main sequence stars
c - subgaints
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