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ASTRO 1 EXAM 1 NEWEST 2025 ACTUAL EXAM
COMPLETE 100 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
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There are a total of 88 constellations. Roughly how many of these can be seen at any given time from a single location on a clear night?
A: 44
B: 22
C: 80-85
D: 11
E: 66 - CORRECT ANSWER -A: 44
What is relationship between wavelength and frequency?
A: It depends on amplitude of the light.
B: They are not related in any way
C: If the frequency increases the wavelength decreases.
D: If the wavelength increases the frequency increases.
E: The frequency Of light is always Zero. - CORRECT
ANSWER-C: If the frequency increases the wavelength
decreases. 1 / 4
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Compare frequency Of x-ray versus regular light.
A: The X-ray has a larger frequency than visible light.
B: It is impossible to know how the differ.
C: The X-ray has a smaller frequency than visible light.
D: The answer depends on the specific color of the visible light.
E: All types of radiation have the Same frequency - CORRECT
ANSWER-A: The X-ray has a larger frequency than visible
light.
Compare the frequency and wavelength of a gamma ray with
visible light:
A: gamma ray frequency is lower and its wavelength is higher
B: gamma ray frequency and wavelength is the same as visible
light
C: gamma ray frequency is higher and its wavelength is higher
D: gamma ray frequency is higher and its wavelength is lower
E: Gamma ray frequency is lower and its wavelength is lower -
CORRECT ANSWER -D: gamma ray frequency is higher and its
wavelength is lower
If the frequency Of radiation is twice as large then its wavelength is 2 / 4
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A: half as large
B: twice as large
C: one quarter as larger
D: four times as laree
E: one hundred times as large - CORRECT ANSWER -A: half as large
Compared to blue light, red light has
A: shorter wavelength , larger frequency, greater energy
B: longer wavelength, Larger frequency, larger energy
C: shorter wavelength, smaller frequency, larger energy
D: shorter, wavelength, Larger frequency, smaller energy
E: longer wavelength, smaller frequency, smaller energy -
CORRECT ANSWER -E: longer wavelength, smaller frequency,
smaller energy
Which types of radiation have lowest energy?
A: X-rays and gamma rays
B: infrared radiation and radio
C: ultraviolet radiation and infrared radiation
D: optical radiation and infrared radiation 3 / 4
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E: ultraviolet radiation and X-rays - CORRECT ANSWER -B: infrared radiation and radio
The spectrum of an oxygen lamp looks different than the
spectrum of a sodium lamp because:
A: different atoms are different colors
B: each atom has a unique set Of proton orbits
C: each atom has a unique set Of electron Orbits
D: each atom has a unique set of neutron orbits
E: oxygen photons have more mass than sodium photons -
CORRECT ANSWER -C: each atom has a unique set Of
electron Orbits
Dark lines in an absorption spectrum represent:
A: particular energies of light coming from a distant object that
are absorbed by material in between.
B: photons emitted when an electron jumps from a higher to a
lower energy level.
C: hotter regions in the object that is emitting the spectrum.
D: flaws in the telescopes and that astronomers use to
measure spectra.
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