As a result of friction between internal parts of an isolated system
A) the total mechanical energy of the system increases.
B) the total mechanical energy of the system decreases.
C) the total mechanical energy of the system remains the same.
D) the potential energy of the system increases but the kinetic energy remains the same.
E) the kinetic energy of the system increases but the potential energy of the system remains the same.

Question

Quizplus · Accepted Answer

Friction between internal parts of an isolated system converts mechanical energy into heat, which is a form of energy that cannot be used to perform work. Therefore, the total mechanical energy of the system decreases.

As a Result of Friction Between Internal Parts of an Isolated