Describe the changes in the potential and kinetic energy of a pendulum as it swings back and forth.

• A. The potential and kinetic energy of the pendulum is always equal throughout its swing.
• B. The potential energy is maximum at the bottom of the arc, while the kinetic energy is maximum at the top of the arc.
• C. The potential energy is maximum at the top of the arc, while the kinetic energy is maximum at the bottom of the arc.
• D. The potential energy and kinetic energy remain constant throughout the swing.

Answer: (C)