Kepler's Second Law of planetary motion states that
A) an imaginary line joining the Sun and planet sweeps out equal areas in equal times
B) the further a planet is from the Sun, the faster it moves in its orbit
C) the further a planet is from the Sun, the slower it moves in its orbit
D) the orbits of planets are ellipses

Question

Quizplus · Accepted Answer

Kepler's Second Law of planetary motion states that an imaginary line joining the Sun and planet sweeps out equal areas in equal times. This means that when a planet is closer to the Sun, it moves faster in its orbit, and when it is farther away, it moves slower. The law has nothing to do with the shape of the orbit (elliptical or otherwise). Therefore, choice A is the correct answer.

Kepler's Second Law of Planetary Motion States That