Quiz #3

Physics 106                                                                                 Friday, September 10, 2004

Please put your ID# at the top of your paper.

1.  If more than half of the moon's face is visible today and tomorrow even more of the moon's face will be visible, the
     moon's phase is (a) waning crescent, (b) waning gibbous, (c) waxing crescent, (d) waxing gibbous.

          2.  The time interval from full moon until the next full moon is (a) less than the moon's orbital period about the earth, (b) equal to
     the moon's orbital period about the earth, (c) more than the moon's orbital period about the earth, (d) none of the
     preceding.

          3.  The time interval from full moon until the next full moon is roughly one (a) day,  (b) week, (c) fortnight (two weeks), (d) month,
     (e) year.

          4.  The reason we always see the same face of the moon is that (a) the moon is identical on both sides, (b) the moon does not rotate on
     its axis as it orbits about the earth, (c) the moon rotates exactly once on its axis as it orbits once about the earth, (d) (No one yet
     understands this phenomenon.)

5.  During an eclipse of the moon (a) the earth is between the sun and moon, (b) the moon is between the earth and sun,
     (c) the sun is between the earth and moon, (d) the earth-moon-sun configuration varies from lunar eclipse to lunar eclipse.