The speeds of the planets about the sun depend on
A) their periods of rotation.
B) the masses of the planets.
C) their distances from the sun.
D) None of the above are correct.

Question

Quizplus · Accepted Answer

The speeds of the planets around the sun depend on their distances from the sun, as described by Kepler's third law of planetary motion, which relates the orbital period of a planet to its distance from the sun. Closer planets move faster, while those further away move slower.

The Speeds of the Planets About the Sun Depend on