Potential Energy Quiz

Potential Energy defined as an additive constant. You are free to choose the zero of potential energy where?

Answer explanation

Wherever is most convient

Potential Energy is measured... from the center of mass of an extended object.

Because gravity is a conservative force, the shape of the ramp is irrelevant, as long as it's ________________________________.

If there's friction, then the _________________ of the ramp does matter because the work done by friction depends on the distance traveled - we'll get to that in a bit.

__________ causes rolling without slipping as it is responsible for resisting the motion of the point of contact with the object so it can instantaneously rotate around this pivot.

Energy is only conserved if the forces in the problem are what?

Nonconservative forces cause the energy to __________ conserved.

Friction always acts to _________ an object's motion.

The work done by friction is always ______________.

What is always conserved in a system in the absence of external forces?