If Earth were twice as massive but it revolved at the same distance from the Sun, its orbital period would be
A) 4 years.
B) 3 years.
C) 2 years.
D) 1 year.
E) 6 months.

Question

Quizplus · Accepted Answer

The orbital period of a planet depends on its distance from the Sun, not its mass, according to Kepler's Third Law. Therefore, if Earth were twice as massive but at the same distance, its orbital period would remain 1 year.

If Earth Were Twice as Massive but It Revolved at the Same