Kepler's Third Law of Planetary Motion states that

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.

Question

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.

Quizplus · Accepted Answer

Kepler's Third Law states that the square of the orbital period of a planet is directly proportional to the cube of the semi-major axis of its orbit. This law describes the relationship between the distance of planets from the Sun and their orbital periods.

Kepler's Third Law of Planetary Motion States That