Which of the following statements best describes Kepler's 3rd law of planetary motion
A)The smaller the diameter of a planet, the faster its rotational period is.
B)The orbital period of a planet is directly proportional to the diameter of the planet.
C)The smaller the orbit, the longer its orbital period is.
D)The larger the orbit, the longer its orbital period is.

Question

Quizplus · Accepted Answer

Kepler's 3rd law states that the square of the period of revolution of a planet is directly proportional to the cube of the average distance between the planet and the sun. This means that the larger the orbit (average distance), the longer the orbital period.

Which of the Following Statements Best Describes Kepler's 3rd Law