Astronomy 210 Quiz 3, Spring Semester 2010
Cuesta College, San Luis Obispo, CA
During a partial lunar eclipse, the moon is located:
(A) both in the umbra and penumbra of Earth.
(B) completely in the umbra of Earth.
(C) completely in the penumbra of Earth.
(D) outside of either the umbra and penumbra of Earth.
Correct answer: (A)
The dark red/brown portion of the moon during a partial lunar eclipse is in the umbra of Earth, while the remaining illuminated portion is in Earth's penumbra.
Section 30674
(A) : 22 students
(B) : 2 students
(C) : 18 students
(D) : 3 students
"Success level": 54% (including partial credit for multiple-choice)
Discrimination index (Aubrecht & Aubrecht, 1983): 0.57
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