A Ball at the End of a String Is Swinging

question 32

Multiple Choice

A ball at the end of a string is swinging as a simple pendulum. Assuming no loss in energy due to friction, we can say for the ball that

• A) the potential energy is maximum at each end of the motion.
• B) the mechanical energy changes and is maximum where the kinetic energy is minimum.
• C) the mechanical energy changes and is maximum where the kinetic energy is maximum.
• D) the kinetic energy does not change but the potential energy does.

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