Question

A. At the end points of its swing, its energy is all potential.B. Kinetic energy is transformed into potential energy.C. All of the aboveD. Potential energy is transformed into kinetic energy.E. At the lowest part of its swing, its energy is all kinetic.F. None of the above

Answer 1

Using the pendulum swinging back and forth, let's select the best statement which represents this situation.

Let's label the given diagram.

We have:

• Kinetic energy is the energy an object posses due to its motion.

,

• Potential energy is the stored energy an object has due to its position.

When the pendulum is at point E or point A, it has potential energy.

When the pendulum is at point C which is the lowest part of its swing, all its energy is kinetic.

When the pendulum starts swinging, the potential energy transformed into kinetic energy.

When the pendulum moves from point C to points A and E, its kinetic energy is transformed into potential energy.

Therefore, all the given statements about the pendulum is correct.

• ANSWER:

C. All of the above.