As shown in the diagram above, pendulum swings from point A...

As shown in the diagram above, pendulum swings from point $A$ to point $E .$ Identify the statement below that is NOT correct. (A) The energy at both points $A$ and $E$ is entirely potential energy. (B) The total energy is decreasing from $A$ to $C$ and is increasing from $C$ to $E$ (C) The kinetic energy is greatest at point $C .$ (D) The total energy at point $A$ equals the total energy at point $C .$ (E) Potential energy is decreasing and kinetic energy is increasing from point $A$ to C.

As shown in the diagram above, pendulum swings from point $A$ to point $E .$ Identify
the statement below that is NOT correct.
(A) The energy at both points $A$ and $E$ is entirely potential energy.
(B) The total energy is decreasing from $A$ to $C$ and is increasing from $C$ to $E$
(C) The kinetic energy is greatest at point $C .$
(D) The total energy at point $A$ equals the total energy at point $C .$
(E) Potential energy is decreasing and kinetic energy is increasing from point $A$ to
C.

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Energy Transformation

Energy transformation refers to the process by which energy changes from one form to another. In a pendulum, energy continuously transforms between potential energy and kinetic energy during its motion, with potential energy converting to kinetic energy as the pendulum descends and vice versa as it ascends.

Conservation of Energy

The conservation of energy principle states that energy cannot be created or destroyed in an isolated system; it can only be transformed from one form to another. In a pendulum system, the total mechanical energy (the sum of potential and kinetic energies) remains constant in the absence of external forces such as friction or air resistance.

Potential Energy

Potential energy is the energy stored in an object due to its position or configuration. In systems involving height, such as pendulum motion, potential energy is highest at the points where the object is highest above the reference level.

Kinetic Energy

Kinetic energy is the energy of motion. In pendulum systems, kinetic energy is greatest when the pendulum is passing through the lowest point of its swing, where its speed is highest, and minimal at its highest points, where the speed is zero.

Transcript

Please give Ace some feedback