The below image shows the position of a mass/spring system at four different moments in its oscillation. Answer the three questions below.

Which moment corresponds to the maximum potential energy of the system? Image A. Of the 4 images below, image A shows the spring/mass system at its most stretched or compressed point. Thus image A is where we are seeing the most PE of the 4 cases below.

Which moment corresponds to the minimum kinetic energy of the system?

Image A. At this point the mass is at rest and thus has zero KE.

Consider the block in the process of oscillating. If the kinetic energy of the block is increasing, the block must be:

a) moving toward equilibrium ß correct answer.

b) moving away from equilibrium

c) at equilibrium

d) near a maximum displacement