When the potential energy of a satellite decreases
A)kinetic energy also decreases.
B)its kinetic energy correspondingly increases.
C)its distance from the orbiting body increases.
D)none of the above

Question

Quizplus · Accepted Answer

According to the law of conservation of energy, the total energy of a system remains constant. Therefore, if the potential energy of a satellite decreases (due to its distance decreasing), its kinetic energy must correspondingly increase to keep the total energy constant. Thus, option A is incorrect. Option C is incorrect because the distance from the orbiting body decreases, not increases. Option D is also incorrect because at least option B is correct.

When the Potential Energy of a Satellite Decreases