Question

which statement is true concerning an object at rest?
kinetic energy and potential energy is based on how high the object is.
the total energy is always 0.
kinetic energy is 0 and potential energy is based on how high the object is.
potential energy is 0 and kinetic energy is based on how high the object is.

Explanation:

Kinetic energy ($KE = \frac{1}{2}mv^2$) depends on velocity. An object at rest has $v = 0$, so $KE = 0$. Potential energy (e.g., gravitational $PE = mgh$) depends on height ($h$) relative to a reference point. So for an object at rest, $KE = 0$ and $PE$ depends on its height. Other options are incorrect: first mixes $KE$ (not height - dependent) and $PE$; second, total energy isn't always 0; fourth swaps $KE$ and $PE$ roles.

Answer:

C. Kinetic energy is 0 and potential energy is based on how high the object is.