The Earth moves about the Sun in an elliptical orbit.As the Earth moves closer to the Sun,which of the following best describes the Earth-Sun system's moment of inertia?
A)decreases
B)increases
C)remains constant
D)none of the above choices are valid

Question

Quizplus · Accepted Answer

As the Earth moves closer to the Sun, its distance from the center of mass of the Earth-Sun system decreases. This means that the mass distribution of the system is shifted closer to the Sun, which reduces the moment of inertia of the system. Therefore, option A is the most valid answer.

The Earth Moves About the Sun in an Elliptical Orbit