Consider the elliptical orbit of a comet around the Sun. Where in its orbit is the comet moving the fastest?
A) When it is farthest from the Sun
B) It is always moving at the same speed.
C) When it is closest to the Sun

Question

Quizplus · Accepted Answer

According to Kepler's Second Law, a planet or comet moves faster when it is closer to the Sun, and slower when it is farther away. Therefore, when the comet is closest to the Sun, it will be moving the fastest in its elliptical orbit.

Consider the Elliptical Orbit of a Comet Around the Sun