Kepler's Third Law of Planetary Motion States That

Multiple Choice

Kepler's Third Law of Planetary Motion states that
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A) The planets travel in circular orbits with the sun at the center.
B) The sun, moon, and planets travel in circular orbits with Earth at the center.
C) The square of the period of revolution of a planet is proportional to the length of the semimajor axis of the planet's elliptical orbit.
D) The square of the period of revolution of a planet is proportional to the square of the length of the semimajor axis of the planet's elliptical orbit.
E) The square of the period of revolution of a planet is proportional to the cube of the length of the semimajor axis of the planet's elliptical orbit.