Which of Jupiter's moons have approximately resonant orbits?
A)Io, Ganymede, Europa, and Callisto
B)Io, Ganymede, and Europa
C)Io and Callisto
D)Ganymede and Callisto
E)Europa and Io

Question

Quizplus · Accepted Answer

Io, Ganymede, and Europa have approximately resonant orbits, meaning that their orbital periods are in a 4:2:1 ratio. This resonance is caused by the gravitational interaction among the moons. Callisto's orbit is not in resonance with the other three moons.

Which of Jupiter's Moons Have Approximately Resonant Orbits