How quickly is the Moon spiraling away from Earth?
A) a few centimeters per million years
B) The Moon is not moving away from Earth because its orbit is governed by Newton's laws.
C) a few centimeters per century
D) a few centimeters per year

Question

Quizplus · Accepted Answer

The Moon is moving away from Earth at a rate of a few centimeters per year due to tidal forces between the Earth and the Moon. This phenomenon is well-documented through laser ranging experiments that measure the distance to the Moon with high precision.

How Quickly Is the Moon Spiraling Away from Earth