Which of these describes the dynamics of the Earth-Moon system?
A) Earth's rotation is speeding up, whereas the Moon is moving slowly outward away from Earth.
B) Earth's rotation is slowing down, whereas the Moon is moving slowly outward away from Earth.
C) Earth's rotation is speeding up, whereas the Moon is moving slowly toward Earth.
D) Earth's rotation is slowing down, whereas the Moon is slowly approaching Earth by spiraling inward.

Question

Quizplus · Accepted Answer

Earth's rotation is gradually slowing down due to tidal forces between the Earth and the Moon. These same forces are causing the Moon to move slowly away from Earth over time.

Which of These Describes the Dynamics of the Earth-Moon System