Work, Energy, and Power is the study of how forces transfer energy and how that energy is stored, used, or lost in a system. In AP Physics C: Mechanics, this unit builds on dynamics by introducing the Work-Energy Theorem, potential and kinetic energy, and the concept of power. It focuses on how work is done by forces, how energy is conserved or transformed, and how to approach systems where forces may be unknown or difficult to calculate. Mastery of work and energy gives you powerful shortcuts and insights, especially in complex problems involving motion, springs, gravity, or collisions.