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Astronomy Test #2

54 Questions  I  By Smatrypants
Astronomy Quizzes & Trivia
Chapters 4-5, 13-14.

  
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Question Excerpt

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1.  What are the two most important intrinsic properties used to classify stars?
A.
B.
C.
D.
2.  Select the order of star color in increasing temperature from cool to hot.
A.
B.
C.
D.
3.  What is the name of the effect when an electromagnetic wave is bent as it passes from one material into another?
A.
B.
C.
D.
4.  Particle accelerators that smash atoms or particles together at high speeds, such as Fermilab or CERN, are important tools used for simulating conditions in
A.
B.
C.
D.
5.  Star A has the same luminosity as star B. Also, star A is 3 times as far as Star B from Earth. Then star A is ________ as bright as star B as seen from Earth. 
A.
B.
C.
D.
6.  Ultraviolet radiation from a star
A.
B.
C.
D.
E.
7.  What is the wavelength of the longest wavelength light visible to the human eye?
A.
B.
C.
D.
8.  The emission and absorption lines of a given atom occur at the exact same energies.
A.
B.
9.  The most massive part of the atom is (are) the ___________which has (have) a ___________charge
A.
B.
C.
D.
10.  Which of these are not associated with the active Sun?
A.
B.
C.
D.
E.
11.  Which of the following layers of the Sun makes up the majority of its interior?    
A.
B.
C.
D.
12.  The fact that the speed of light is constant (as it travels through a vacuum) means that
A.
B.
C.
D.
13.  By what mechanism does radiation reach the Sun's surface from its interior?
A.
B.
C.
D.
14.  Ultraviolet radiation is hard to observe primarily because
A.
B.
C.
D.
15.  The Arecibo Observatory is:
A.
B.
C.
D.
16.  Parallax would be easier to measure if    
A.
B.
C.
D.
E.
17.  If light from a star passes from an excited low density gas seen against the dark background of space to your telescope and spectroscope, __________ spectrum results.
A.
B.
18.  The reason to prefer a reflecting over a refracting telescope is its
A.
B.
C.
D.
19.  The visible part of the electromagnetic spectrum can be divided into six color bands of Red, Orange, Yellow, Green, Blue and Violet (from long to short wavelength). A single photon of which of these colors has the greatest amount of energy?
A.
B.
C.
D.
E.
20.  Binary (double) stars can be detected by
A.
B.
C.
D.
E.
21.  Neutrinos are created in reaction in the _____________ of the sun.
A.
B.
C.
D.
22.  Absolute zero is
A.
B.
C.
D.
E.
23.  The light we see from the Sun comes from which layer?    
A.
B.
C.
D.
24.  A particular star with the same spectral type as the Sun (G2) has a luminosity of 50 solar luminosities. What does this tell you about the star? 
A.
B.
C.
D.
E.
25.  Of the following, which color represents the lowest surface temperature star?
A.
B.
C.
D.
E.
26.  The Doppler shift can be used to determine the _________ of an object.
A.
B.
C.
D.
27.  Stars of similar temperatures but different sizes
A.
B.
C.
D.
28.  The lowest energy level in an atom is
A.
B.
C.
D.
E.
29.  The sun's magnetic field is evident in the looped shapes of
A.
B.
C.
D.
E.
30.  Which type of binaries are found via Doppler shifts?    
A.
B.
C.
D.
E.
31.  Which electron energy level transition corresponds to a hydrogen atom absorbing a visible-light photon that has a wavelength of 656 nanometers?
A.
B.
C.
D.
E.
32.  If continuous spectrum light from a star passes through a cool low density gas on its way to your telescope and spectroscope, _____________ spectrum on the continous spectrum results.
A.
B.
C.
33.  ______________ has (have) wavelengths that are longer than visible light.
A.
B.
C.
D.
E.
34.  If a star's distance is 10 pc, what is its parallax?
A.
B.
C.
D.
35.  High temperatures are required to get H nuclei to fuse because they ________ one another because of their __________ electric charges.
A.
B.
C.
D.
36.  Radio telescopes are often connected together to do interferometry. What is the primary problem overcome by radio interferometry?
A.
B.
C.
D.
E.
37.  What is the difference between brightness and luminosity?
A.
B.
C.
D.
38.  The ________________ of a telescope is a measure of its ability to show fine detail and depends on the diameter of the objective.
A.
B.
C.
D.
E.
39.  Granulation is caused by
A.
B.
C.
D.
E.
40.  Magnetic fields inside sunspots are ______________those in surrounding regions.
A.
B.
C.
D.
41.  What is the net result of the proton-proton chain?
A.
B.
C.
D.
42.  Which of the following is the most common type of star?
A.
B.
C.
D.
43.  Star C and star D are equally luminous. Star C is twice as far away from Earth as star D. How do the brightness level of stars C and D compare?
A.
B.
C.
D.
44.  Magnetic field is continuously produced and deformed in the Sun by    
A.
B.
C.
D.
45.  How long does the sunspots cycle last, on average?
A.
B.
C.
D.
46.  A faster-moving star in a binary is the
A.
B.
C.
D.
47.  The number of ___________ in the nucleus determines what element the nucleus is.
A.
B.
C.
D.
E.
48.  The entire electromagmetic spectrum can be divided into the seven bands of Radio, Microwave, Infrared, Visivle, Ultraviolet, X-ray, and Gamma-ray (from longest to shortest wavelength). To which of these two bands is Earth's atmosphere the most transparent?
A.
B.
C.
D.
E.
49.  Star A has higher luminosity than Star B, but is farther away. Which has higher apparent brightness?
A.
B.
C.
D.
50.  A plot of the continuous spectra of five different stars is shown in the figure below. Based on these spectra, which of the stars is the hottest?
A.
B.
C.
D.
51.  You research the star Sirius and find that its spectral lines are blue shifted. What does this tell you about Sirius?
A.
B.
C.
D.
E.
52.  Star E is the same temperature as star F but is four times as luminous. Which star is bigger?    
A.
B.
C.
D.
53.  Infrared astronomy is often done from high-flying aircraft because
A.
B.
C.
D.
E.
54.  The wavelength of maximum intensity that is emitted by a black body is
A.
B.
C.
D.
E.
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