Astronomy - Chapter 1: Earth-Moon System Flashcards
1
Q
About two days after the new moon, a thin sliver appears low in the western sky
A
crescent phase
2
Q
During the following week, the illuminated portion of the moon visible from earth increases (waxing) to a ____
A
half circle (first quarter phase)
3
Q
What is it called when the whole moon is illuminated?
A
Full moon
4
Q
True or false: half of the moon is illuminated at all times
A
True
5
Q
When does the new moon phase happen?
A
When the moon appears between the earth and the sun
6
Q
The cycle of the moon through its phases requires 29.5 days or…
A
synodic month
7
Q
What happens when the moon moves in a line directly between the earth and sun
A
solar eclipse
8
Q
What happens when the moon moves within the shadow of the earth?
A
Lunar eclipse
