Based on Kepler's first and second laws, Earth moves _________ in its orbit when it is at _________.
A)faster; perihelion
B)slower; perihelion
C)faster; aphelion
D)around; perihelion

Question

Quizplus · Accepted Answer

Kepler's first law states that planets orbit in an ellipse, with the Sun at one focus. This means that the distance between the Earth and Sun changes as Earth orbits. Kepler's second law states that a planet moves fastest at perihelion (the point of closest approach to the Sun) and slowest at aphelion (the point farthest from the Sun). Therefore, Earth moves faster in its orbit when it is at perihelion, and slower when it is at aphelion.

Based on Kepler's First and Second Laws, Earth Moves _________