The Law of Conservation of Energy

The law of conservation of energy states that energy cannot be created or destroyed, but only converted from one form to another. Most energy conversion is not very efficient, since much energy is lost in the process. A car is about twenty-two percent efficient. Much of the energy turns to heat or is used to combat friction. Swinging balls that collide demonstrate the law of conservation, as well as how energy changes from kinetic to potential, and from potential to kinetic energy. Kinetic energy depends on mass and velocity..

  Curriculum Standards

Grades: 6-8   |   Copyright: 2004