8. The pendulum in the diagram below swings from position A to B.

Question

If we don’t consider friction, what happens to the total mechanical energy as the pendulum swings from position A to position B?

(1 point)
Responses

It declines
It declines

It is not conserved
It is not conserved

It becomes greater.
It becomes greater.

It remains the same

Answer 1

The correct response is:

It remains the same.

In the absence of friction and other non-conservative forces, the total mechanical energy of the pendulum is conserved. This means that as the pendulum swings from position A to position B, the sum of its potential energy and kinetic energy remains constant.