Which is shorter, the phase period or the true orbit time of the moon?
A) the true orbit period is shorter
B) the answer depends on time of the year
C) the answer depends on time of the month
D) they are the same
E) the phase period is shorter

Hi again,

The answer is:

A) the true orbit period is shorter


Orbit time = 27.3 days 
Phase period = 29.5 days 
http://www.physics.utoledo.edu/~lsa/_a1010/mod04.htm


Search strategy: "phase period" " true orbit time"  moon 


Best wishes,
robertskelton-ga