IN.CS. Content Standards
7.4. Science, Engineering and Technology
7.4.1. Understand that energy is the capacity to do work.
7.4.2. Explain that energy can be used to do work using many processes (e.g., generation of electricity by harnessing wind energy).
7.4.3. Explain that power is the rate that energy is converted from one form to another.
7.4.4. Explain that power systems are used to provide propulsion for engineered products and systems.