Kepler's second law states that a line joining a planet to the Sun
A) moves equal distances along the planet's orbit in equal times.
B) sweeps through equal angles in equal times.
C) points in the same direction at all times.
D) sweeps out equal areas in equal times.

Question

Quizplus · Accepted Answer

Kepler's second law, also known as the law of equal areas, states that a line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time. This means that the planet moves faster when it is closer to the Sun and slower when it is farther from the Sun, ensuring that the area swept out over a given time remains constant.

Kepler's Second Law States That a Line Joining a Planet