The diagram shows a simple pendulum. Neglecting friction, what happens to the total mechanical energy as the pendulum swings from position A to position B?

Question

Captionless Image
Responses

It decreases.
It decreases.

It increases.
It increases.

It remains the same.
It remains the same.

It is not conserved.

Answer 1

For a simple pendulum without friction, the total mechanical energy is conserved. This means that as the pendulum swings from position A to position B, the total mechanical energy (the sum of kinetic and potential energy) remains the same.

So, the correct response is:

It remains the same.