When do you think the clock pendulums and the swings where at there highest and lowest kinetic and potential energy Why?

The clock pendulum and swings are at their highest potential energy at the highest point of their swing when they are farthest from the ground. They are at their highest kinetic energy at their lowest point of their swing when they have the most speed. This is because potential energy is highest when the object is highest, and kinetic energy is highest when the object is moving the fastest.