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Astronomy Part 1 Review C
Test Description: Astronomy Part 1 topics
Instructions: Answer all questions to get your test result.
1) What effect do solar flares have on Earth?
A
cause global warming
B
cause the tides
C
cause magnetic pole reversal
D
cause auroras
2) What is the source of the Sun's energy?
A
nuclear fusion
B
photosynthesis
C
chemical burning
D
nuclear fision
3) Star A is farther from Earth than Star B. Both stars have the same absolute magnitude.
A
We cannot determine either star's apparent magnitude.
B
Both stars will have the same apparent magnitude.
C
Star A will have the greater apparent magnitude.
D
Star B will have the greater apparent magnitude.
4) About 90% of stars on the H-R Diagram are
A
supergiants
B
red giants
C
white dwarfs
D
main sequence stars
5) Main sequence stars that are the brightest are
A
the smallest
B
also the hottest
C
the largest in diameter
D
the very cool
6) Astronomers observations of red shifts in spectral lines of distant galaxies indicates
A
that Planet Earth is probably at the center of our universe
B
that Planet Earth is near the edge of our universe
C
that the universe is expanding
D
that the universe is contracting
7) You weigh 240 pounds on Earth. The moon's gravitational attraction is 1/6 that of Earth.
A
You would weigh 1440 pounds on the moon
B
You would weigh 240 pounds on the moon
C
You would weigh 480 pounds on the moon
D
You would weigh 40 pounds on the moon
8) Stars with the highest surface temperature would be
A
yellow
B
red
C
green
D
blue
9) The difference in the brightness of two stars with the same surface temperature is
A
related to their ages
B
related to their sizes
C
related to how they formed
D
related to their colors
10) The Hertzsprung-Russell Diagram shows the relationship between
A
temperature and absolute magnitude
B
apparent magnitude and parallax
C
absolute magnitude and apparent magnitude
D
parallax and temperature
*select an answer for all questions
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