Astronomy 120 - Stars and Galaxies » Fall 2022 » Test No. 1
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Question #1
"Science" can be thought of as an objective way of learning about or viewing the physical world. The "scientific method" is the systematic way of working to attain that understanding. Which of these is not necessary to conduct research using the scientific method?
A.
Process of elimination
B.
Communication of results
C.
Research and experimentation
D.
Hypothesis based on observations
Question #2
Astronomy is the science that is best described as
A.
showing how stars work
B.
the study of detectable, celestial objects and phenomena outside the Earth's atmosphere
C.
understanding the nature of the stars and galaxies in the Universe
D.
the study of planets that are out there
Question #3
A planet moves at perihelion (closest point to the Sun along the planet's orbit).
A.
in retrograde motion
B.
at its average speed
C.
at its slowest speed
D.
at its fastest speed
Question #4
The asteroid Hygiea orbits the Sun at a distance of 3.14 A.U, while the asteroid Ceres, which is more than ten times the mass of Hygiea, orbits at 2.77 A.U. Which asteroid will orbit the Sun more quickly?
A.
neither, both orbit within the asteroid belt and so will take the same amount of time
B.
more information is required to answer this question accurately
C.
Ceres
D.
Hygiea
Question #5
The object that the Earth orbits is…
A.
Jupiter
B.
the Earth
C.
the moon
D.
the Sun
Question #6
For a reflecting telescope, why is collecting light important?
A.
Light collecting is important because it helps show the size of the planet or star.
B.
Light collecting isn't important actually, since the eyepiece magnifies the image as big as we need to see it.
C.
Light collecting isn't important actually, since different wavelengths refract differently through a lens.
D.
Light collecting is important because it makes dim and faint objects visible.
Question #7
According to Christian Doppler, when an object emitting light travels away from you, that light will appear to be
A.
red-shifted.
B.
more energetic.
C.
side-shifted.
D.
blue-shifted.
Question #8
The combination of which two subatomic particles produces the nucleus of an atom?
A.
neutrons and protons
B.
neutrons and electrons
C.
photons and electrons
D.
neutrons and photons
Question #9
The metric system commonly uses units of meters (m), kilometers (km), millimeters (mm), and centimeters (cm) to represent various distances.
A.
True
B.
False
Question #10
Jupiter's moon Io experiences such strong tides as a result of its orbit around the planet that it experiences something called "tidal heating," causing it to remain in a perpetually molten lava state.
A.
False
B.
True
Question #11
The best kind of ground-based telescope would be a gamma ray telescope for direction observation of gamma rays from outer space.
A.
False
B.
True
Question #12
A star with a peak wavelength at 320 nm is much hotter than a star whose peak wavelength is 930 nm.
A.
False
B.
True
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