In the picture of the pendulum below, which comparison is true of the pendulum bob when it is at points 1 and 2?

(1 point)
Responses

It has the lowest potential energy at points 1 and 2.
It has the lowest potential energy at points 1 and 2.

The pendulum has its highest kinetic energy at points 1 and point 2
The pendulum has its highest kinetic energy at points 1 and point 2

The pendulum has its highest potential energy at point 1 and point 2
The pendulum has its highest potential energy at point 1 and point 2

The potential energy does not change when the bob is swinging from point 1 to point 2.
The potential energy does not change when the bob is swinging from point 1 to point 2.
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1 answer

To accurately answer the question about the pendulum bob at points 1 and 2, it is important to understand how potential and kinetic energy work in this system.

  1. Potential Energy: The potential energy of a pendulum bob is highest at the maximum height (the endpoints of its swing) and lowest at the lowest point of its swing (the midpoint).
  2. Kinetic Energy: The kinetic energy is highest at the lowest point of the swing where the speed is greatest, and lowest at the highest points of the swing where the speed is zero.

Assuming:

  • Point 1 is one of the highest points in the swing.
  • Point 2 is also likely a point during the swing, but since it's not specified, I will assume it is also at a height but possibly not the highest point.

Based on these principles, the correct statements are:

  • At points 1 and 2, the pendulum has its highest potential energy (if they are both at the highest points) and lowest kinetic energy.

The correct answer, based on the conventional understanding of pendulum motion, would be:

  • The pendulum has its highest potential energy at point 1 and point 2.

Thus, the correct response from your options would be:

  • "The pendulum has its highest potential energy at point 1 and point 2."