Earth Moon Sun Cycles Flashcards
1
Q
What is the structure of a sundial?
A
It has a pointer and a dial
2
Q
How does a sundial work?
A
The pointer casts a shadow indicating the time of day.
The numbered dial is the area in which the shadow falls, showing the hour.
3
Q
What are the lunar phases?
A
New moon Waxing crescent First quarter Waxing gibbous Full moon Waning gibbous Third quarter Waning credent
4
Q
What is the difference between a sidereal month and a synodic month?
A
The sidereal month lasts 27.322 days whereas a synodic month lasts 29.531 days.
