Cuesta College, San Luis Obispo, CA
Students are assigned to read online articles on current astronomy events, and take a short current events quiz during the first 10 minutes of lab. (This motivates students to show up promptly to lab, as the time cut-off for the quiz is strictly enforced!)
Karl Hille, "Hubble’s Cosmic Search for a Missing Arm" (November 17, 2017)The single spiral arm structure and young outer region star formation in dwarf galaxy NGC 4625 were caused by gravitational interactions from:
(A) its supermassive black hole.
(B) type II supernova explosions.
(C) intense ultraviolet light.
(D) another dwarf galaxy.
(E) dark matter.
Correct answer: (D)
Sections 70178, 70186
(A) : 2 students
(B) : 7 students
(C) : 8 students
(D) : 28 students
(E) : 0 students