What is significant about the rotational and orbital motions of the Galilean moons of Jupiter in which they mimic the behavior of our own Moon?
A) non-synchronous rotation, with axes of rotation in any direction with respect to their orbital plane
B) non-synchronous rotation, with independent periods of rotation and revolution and spin axes perpendicular to their orbit
C) synchronous rotation, with one face always pointed toward the planet
D) synchronous rotation, with one face always pointed toward the Sun

Question

Quizplus · Accepted Answer

The Galilean moons of Jupiter, like our Moon, exhibit synchronous rotation, with one face always pointed toward the planet. This is significant because it indicates that tidal forces from the planet have caused the moons to gradually slow down their rotation until it matches their orbital period. This is a common phenomenon in the natural satellites of planets, and studying it can provide insight into the dynamics of the planetary system.

What Is Significant About the Rotational and Orbital Motions of the Galilean