Earth exerts a force on the Moon.These two bodies make up
A)one interaction.
B)two interactions.
C)multiple interactions.

Question

Quizplus · Accepted Answer

Earth and Moon constitute a single interaction because they are gravitationally bound to each other. Although the force exerted by the Earth on the Moon and vice versa are opposite in direction, they form a single interaction because they act on only two objects.

Earth Exerts a Force on the Moon