North Carolina Standards
NC.7.P. Physical Science
Energy: Conservation and Transfer
7.P.2. Understand forms of energy, energy transfer and transformation and conservation in mechanical systems.
7.P.2.1. Explain how kinetic and potential energy contribute to the mechanical energy of an object.
7.P.2.2. Explain how energy can be transformed from one form to another (specifically potential energy and kinetic energy) using a model or diagram of a moving object (roller coaster, pendulum, or cars on ramps as examples).