Astronomy 210 Quiz 5, Spring Semester 2010
Cuesta College, San Luis Obispo, CA
If the production of energy were to suddenly increase in the core of the sun, the pressure-temperature thermostat would restore it by __________ the size of the sun, which would __________ the pressure and temperature.
(A) increasing, increase.
(B) decreasing, increase.
(C) increasing, decrease.
(D) decreasing, decrease.
Correct answer: (C)
An increase in energy production would result in heating and expanding the size of the sun. Due to this adiabatic expansion, the pressure and temperature would decrease.
Section 30676
(A) : 6 students
(B) : 5 students
(C) : 44 students
(D) : 6 students
"Success level": 75% (including partial credit for multiple-choice)
Discrimination index (Aubrecht & Aubrecht, 1983): 0.32
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