Class 12, ICA #11, September 21.

We did 5 clicker questions at the beginning of class,
including 2 reading check ones and 2 from Prather
et al. pp. 79-81.

There were 9 total marks possible.  For #1, #2, #4, #5: You get 1 mark
for answering, 1 more mark for answering correctly. For #3, you get 1
mark for answering regardless of your answer.

The clicker questions count for a total of 3 points toward your
course grade, so your points for the day = # of marks * (3/9).






Clicker Question #1:

Phases of the Moon are caused by:

B. how much of the Moon's lit-up half is on the half you see
(i.e. its Earth-facing side).





Clicker Question #2:

To see a solar eclipse, you need to be

B. in the Moon's shadow.







Clicker Question #3:

Where is the Moon in its orbit when you see it like
this? (Refer to lecture slide for visuals.)

D.






Clicker Question #4:

Problem 1 from Prather et al. pp. 79-81.

D. 




Clicker Question #5:

Problem 5 from Prather et al. pp. 79-81.

C.