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Practice Exam #3

20 Questions  I  By Emhook

  
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Question Excerpt

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1.  Which of the following is not a form of light?
A.
B.
C.
D.
E.
2.  Which of the following statements about the nucleus of a typical atom (such as the carbon in your little finger) is false:
A.
B.
C.
D.
E.
3.  Which of the following has the shortest wavelength?
A.
B.
C.
D.
E.
4.  Which atom would be absorbing light with the greatest energy?
A.
B.
C.
D.
5.  Which of the atomic transition(s) shown would be associated with emission spectra?
A.
B.
C.
D.
E.
6.  If you were an scientist at the National Science Foundation, which of the following telescope proposals would you fund?
A.
B.
C.
7.  Energy is released from atoms in the form of light when electrons
A.
B.
C.
D.
E.
8.  What happens to the light that is missing in an absorption spectrum?
A.
B.
C.
D.
9.  If an electron in an atom moves from an energy level of 3eV to an energy level of 6eV,
A.
B.
C.
D.
10.  What kind of spectrum is given off by a red colored, neon “OPEN” sign?
A.
B.
C.
D.
11.  11. Star A gives off the same amount of energy as Star B, but Star A is much much hotter than Star B. Which star has the greater surface area?
A.
B.
C.
D.
12.  Which of the following layers of the Sun does nuclear fusion occur?
A.
B.
C.
D.
E.
13.  Use the energy output versus wavelength graphs shown below to answer the next question. By looking at the blackbody (or thermal) spectra of the four objects A–D, which, if any, of the other objects has the same temperature as object B?
A.
B.
C.
D.
E.
14.  What would happen if the fusion rate in the core of the Sun were increased but the core could not expand?
A.
B.
C.
D.
15.  The Hubble telescope is capable of making observation of stars, passing the light through a prism and making plots of their spectra. The graph below shows the brightness of the light at different wavelengths seen by the Hubble telescope when it looks at the Quasar PKS 0405-123. This Quasar is a dense, hot object in a distant galaxy. The light from the quasar passes through the intergalactic medium, a diffuse, cool gas. What type of spectrum is the Hubble telescope seeing when it looks at Quasar PKS 0405-123.
A.
B.
C.
D.
16.  Listed following are the different layers of the Sun. Rank these layers based on their distance from the Sun’s center, from greatest to least.
A.
B.
C.
D.
E.
17.  A high energy photon is produced by a nuclear reaction at the center of the Sun. Which diagram best represents how that photon escapes from the Sun’s radiation zone?
A.
B.
C.
D.
18.  Consider the graph below which shows the spectrum of light emitted from two regions of the Sun’s surface; a sunspot and a normal part of the photosphere. Which curve corresponds to the light from a sunspot?
A.
B.
19.  For the next two questions, classify each statement as either (a) an observation of the Sun, or (b) an inference based on the current, accepted model for the Sun. The Sun generates energy by fusing hydrogen into helium.
A.
B.
20.  For the next two questions, classify each statement as either (a) an observation of the Sun, or (b) an inference based on the current, accepted model for the Sun. he photosphere is made mostly of hydrogen and helium.
A.
B.
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