Cuesta College, San Luis Obispo, CA
Which phase will the moon have when it is setting at 3:00 PM? Clearly circle your answer below.
Correct answer (highlight to unhide): (E)
The moon that sets at 3:00 PM will have been highest overhead six hours earlier, at 9:00 AM, while essentially keeping the same phase (as it would take three-and-a-half days to go to the next phase). The waning crescent moon (response (E)) is highest overhead at 9:00 AM.
(Response (C) (waxing crescent) is the phase that that is highest overhead at 3:00 PM; response (A) (waxing gibbous) is the phase that is rising at 3:00 PM.)
Section 30676
Exam code: quiz01sRmB
(A) : 11 students
(B) : 0 students
(C) : 2 students
(D) : 1 student
(E) : 21 students
(F) : 2 students
(G) : 6 students
(H) : 2 students
(No responses: 1 student)
Success level: 46% (including partial credit for multiple-choice)
Discrimination index (Aubrecht & Aubrecht, 1983): 0.76
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