Learn the definition and derivation of the work - energy theorem , which states that the work done by the net force on a particle equals the change in its kinetic energy . See examples, key points, and key terms related to work and energy . The derivation of the work-energy theorem is provided here. The work-energy theorem , also known as the principle of work and kinetic energy , states that the total work done by the sum of all the forces acting on a particle is equal to the change in the kinetic energy of that particle. The Work-Energy Theorem is a concept in physics related to the dynamic motion of objects. It states that the work done on an object is equal to the change in its kinetic energy .
