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 is not conserved
It is not conserved

It becomes greater.
It becomes greater.

It declines
It declines

It remains the same

Answer 1

If we don't consider friction, the total mechanical energy of the pendulum as it swings from position A to position B remains the same. This is because mechanical energy (the sum of potential and kinetic energy) is conserved in the absence of non-conservative forces, such as friction.

So the correct answer is:

It remains the same.