A lunar month is about 28 days. If the moon were farther from the Earth than it is now, the lunar month would be
A) less than 28 days.
B) more than 28 days.
C) about 28 days.
D) difficult to predict without much more information.

Question

Quizplus · Accepted Answer

The period of an orbit increases with the distance between the orbiting bodies due to the weaker gravitational force exerted at larger distances. Therefore, if the moon were farther from the Earth, the lunar month would be longer than 28 days.

A Lunar Month Is About 28 Days