You drop the pendulum bob and it swings from point A to point C, and then back again. Eventually it slows down and stops, settling at point B. A similar pendulum can be found in a pendulum clock. However, the clock pendulum does not stop; it continues to swing back and forth, with a tick-tick. Why is there a difference between the lab pendulum and the clock pendulum?
AAll of the potential energy is not converted to kinetic energy.
BAn enclosed pendulum is not acted on by air resistance or gravity.
CAn external energy source, like a battery, is needed to maintain motion.
Eliminate
DAir resistance is not a factor since the pendulum is housed inside the clock.
AAll of the potential energy is not converted to kinetic energy.
BAn enclosed pendulum is not acted on by air resistance or gravity.
CAn external energy source, like a battery, is needed to maintain motion.
DAir resistance is not a factor since the pendulum is housed inside the clock.