Multiple choice The force exerted by the moon on Earth is: Equal to the force of the Earth on the Moon Is the negative of the force of the Earth on the Moon is one sixth the force of the Earth on the Moon Is negative one sixth the force of the Earth on the Moon Reveal answer Fill a bubble to check yourself B Correct answer Explanation According to Newton's Third Law, forces exist in action-reaction pairs that are equal in magnitude and opposite in direction. Therefore, the force of Earth on the Moon is the negative of the force of the Moon on Earth.