If the Earth's orbit around the Sun were increased to a radius twice what it is now.Which of the following is true?

Question

Quizplus · Accepted Answer

The force of gravity between two objects is inversely proportional to the square of the distance between their centers. If the distance (radius of Earth's orbit) is doubled, the force of gravity would decrease by a factor of $2^2 = 4$. This applies to the force on the Earth due to the Sun and vice versa, due to Newton's third law, which states that every action has an equal and opposite reaction. Therefore, both A and C are correct.

If the Earth's Orbit Around the Sun Were Increased to a Radius