What is the relationship between work and energy? How does work add or remove energy from a system? This video will show you about the work energy theorem and you how to solve for potential energy (PE), kinetic energy (KE) and work. Learn how to determine how fast an object going if it has an expressed amount (Joules) of energy? All these questions will be answered in this video. This video addresses the relationship between work, potential energy and kinetic energy.