Astronomy quiz question: time to change moon phases

Astronomy 210 Quiz 1, fall semester 2013
Cuesta College, San Luis Obispo, CA

Approximately how much time elapses between first quarter to third quarter?
(A) An hour.
(B) Several hours.
(C) 12 hours.
(D) 24 hours.
(E) Several days.
(F) One week.
(G) Several weeks.
(H) 28 days.

Correct answer: (G)

The moon will take approximately four weeks to go through all eight of its phases, such that it will take approximately two weeks to go through four phases (starting from first quarter, to go through waxing gibbous, full moon, waning gibbous, to end at third quarter).

Section 70158
Exam code: quiz01S0u7
(A) : 0 students
(B) : 0 students
(C) : 2 students
(D) : 0 students
(E) : 1 student
(F) : 8 students
(G) : 34 students
(H) : 1 student

Success level: 74% (including partial credit for multiple-choice)
Discrimination index (Aubrecht & Aubrecht, 1983): 0.50