A solar eclipse that occurs when the Moon's umbra reaches Earth's surface is called
a. a total solar eclipse.
b. a partial solar eclipse.
c. an annular solar eclipse.
d. a penumbral solar eclipse.
e. an umbral solar eclipse.
Question 2A solar eclipse that occurs when the Moon's umbra does not reach Earth's surface is called
a. a total solar eclipse.
b. a partial solar eclipse.
c. an annular solar eclipse.
d. a penumbral solar eclipse.
e. an umbral solar eclipse.
Question 3The synodic period of the Moon is
a. about 27.32 days long.
b. the period of time for the Moon to orbit Earth once with respect to the stars.
c. the period of time between successive eclipses at a given location on Earth.
d. the period of time from when the Moon rises until the Moon rises again the next night.
e. None of the other choices are correct.
Question 4The sidereal period of the Moon is
a. about 27.32 days long.
b. the period of time for the Moon to orbit Earth once with respect to the stars.
c. the period of time between successive eclipses at a given location on Earth.
d. the period of time from when the Moon rises until the Moon rises again the next night.
e. about 27.32 days long and the period of time for the Moon to orbit Earth once with respect to the stars.
Question 5The ____ of the Moon is the period of time for the Moon to complete a cycle of the lunar phases and is approximately 29.5 days long.
a. sidereal period
b. Saros cycle
c. synodic period
d. eclipse season
e. umbral period
Question 6An eclipse season is the period of time during which the
a. Moon crosses a node in its orbit.
b. Sun crosses a node in the Moon's orbit.
c. line of nodes crosses the Moon's orbit.
d. Moon is new or full.
e. Moon is visible during the day.
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