Which of the following is not one of, nor a direct consequence of, Kepler's Laws?
A) The force of attraction between any two objects decreases with the square of the distance between their centers.
B) As a planet moves around its orbit, it sweeps out equal areas in equal times.
C) The orbit of each planet about the Sun is an ellipse with the Sun at one focus.
D) More distant planets orbit the Sun at slower speeds.

Question

Quizplus · Accepted Answer

Kepler's Laws describe the motion of celestial bodies under the influence of gravity. However, the inverse square law of gravitational attraction is a consequence of Isaac Newton's laws of motion, not Kepler's Laws. Kepler's Laws are concerned with the shape and motion of planetary orbits, the relationship between a planet's speed and its distance from the Sun, and the rate at which an orbiting planet sweeps out equal areas in equal times.

Which of the Following Is Not One Of, nor a Direct