Which of the following statements is true about a swinging pendulum?
A) Its kinetic energy is greatest when it is at the extreme (the highest point) of its swing.
B) Its potential energy is greatest when it is at the extreme (the highest point) of its swing.
C) Its kinetic energy does not change as it swings.
D) Its potential energy does not change as it swings.

Question

Quizplus · Accepted Answer

During the highest point of the swing, the pendulum is at its maximum height and therefore has the greatest potential energy. As it swings downward, potential energy is converted into kinetic energy until it reaches the bottom of the swing, where kinetic energy is at its maximum and potential energy is at its minimum. As it swings back upward, the kinetic energy is converted back into potential energy until it reaches the highest point again. Therefore, the kinetic and potential energy of the pendulum are constantly changing as it swings.

Which of the Following Statements Is True About a Swinging