Our Moon in Earth orbit travels fastest when it is
A)involved in an eclipse.
B)rotating.
C)revolving.
D)closest.
E)all of the above

Question

Quizplus · Accepted Answer

The Moon's speed in orbit is determined by its distance from Earth. When the Moon is closest to Earth (at perigee), it travels fastest, and when it is farthest from Earth (at apogee), it travels slowest. Therefore, the Moon travels fastest when it is closest to Earth.

Our Moon in Earth Orbit Travels Fastest When It Is