Cuesta College, San Luis Obispo, CA
Consider Earth, Mars, and Jupiter as shown in the diagram below (not to scale, and orbits have been simplified as circles instead of ellipses).
Which planet(s) will be visible somewhere in the San Luis Obispo, CA sky at midnight (12 AM)?
(A) Mars.
(B) Jupiter.
(C) (Both of the above choices.)
(D) (None of the above choices.)
Correct answer: (D).
At midnight, the observer is located at the middle of the night side of Earth. Both Mars and Jupiter would not be visible, as they would both be below the horizon of the observer.
Section 70158
Exam code: quiz02sHDw
(A) : 6 students
(B) : 2 students
(C) : 6 students
(D) : 17 students
Success level: 56% (including partial credit for multiple-choice)
Discrimination index (Aubrecht & Aubrecht, 1983): 0.43
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