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

Question

Quizplus · Accepted Answer

According to Kepler's Second Law, a planet/comet moves fastest when it is closest to the Sun, and slowest when it is farthest. This is because the gravitational force of the Sun is stronger when the planet/comet is closer, causing it to move faster.

Consider the Elliptical Orbit of a Comet Around the Sun