Question

Because of friction

A) energy is NOT always conserved.
B) NOT all potential energy is converted to kinetic energy
C) all of an object's kinetic energy turns into potential energy.
D) all of an object's potential energy turns into kinetic energy

Answer 1

B

Step-by-step explanation:

The total amount of mechanical energy in a closed system without friction or air resistance remains constant. In other words, in the absence of friction potential energy can become kinetic energy. This would mean that if you were to apply friction then the kinetic energy would be reduced. In simpler words, friction reduces the motion of an object.

For example, a skateboarder going down a dry ramp would have less friction stopping them than a skateboarder going down a muddy ramp.