Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Energy Statement PPT
Document related concepts
Efficient energy use wikipedia , lookup
Dark energy wikipedia , lookup
Open energy system models wikipedia , lookup
William Flynn Martin wikipedia , lookup
100% renewable energy wikipedia , lookup
Energy subsidies wikipedia , lookup
Energy storage wikipedia , lookup
Potential energy wikipedia , lookup
Low-Income Home Energy Assistance Program wikipedia , lookup
Public schemes for energy efficient refurbishment wikipedia , lookup
Zero-energy building wikipedia , lookup
World energy consumption wikipedia , lookup
Low-carbon economy wikipedia , lookup
Energy Charter Treaty wikipedia , lookup
Alternative energy wikipedia , lookup
Regenerative brake wikipedia , lookup
Kinetic energy wikipedia , lookup
International Energy Agency wikipedia , lookup
Energy returned on energy invested wikipedia , lookup
Distributed generation wikipedia , lookup
Energy policy of the United Kingdom wikipedia , lookup
Energy harvesting wikipedia , lookup
Life-cycle greenhouse-gas emissions of energy sources wikipedia , lookup
Energy policy of Finland wikipedia , lookup
Energy efficiency in transport wikipedia , lookup
Internal energy wikipedia , lookup
Negawatt power wikipedia , lookup
Energy in the United Kingdom wikipedia , lookup
Energy policy of the European Union wikipedia , lookup
Conservation of energy wikipedia , lookup
United States energy law wikipedia , lookup
Energy efficiency in British housing wikipedia , lookup
Energy Independence and Security Act of 2007 wikipedia , lookup
Transcript
ENERGY NOTES Learning Goal: I can distinguish between kinetic and potential energies and describe how energy changes, is stored, or stays the same within a system. Definition: Energy…. …..is the ability to do work, or the ability to move or cause change in matter. …..is a part of systems …..comes in many types Energy is NOT matter! I. 2 Main Categories (types) of Energy: A) Potential Energy (PE) : stored energy 1. stored in springs, batteries, food, & fuel 2. examples: chemical, elastic, nuclear, electromagnetic, gravitational potential energy (can be held in a high place to be used when it falls) B) Kinetic Energy (KE): energy of motion 1. the faster an object moves, the higher the energy. 2. examples: • electrical (flow of electrons) • sound (movement of air molecules) • thermal/heat (movement of atoms) • any moving object (car, person, etc.) Chemical Energy • Potential energy stored in bonds of atoms and molecules Mechanical Energy • Potential or kinetic energy in objects due to their position or motion. (ie: Ability to do work) Nuclear Energy • Potential energy stored in the nucleus of an atom Gravitational Energy • Potential energy stored in an object’s height. Radiant Energy • Kinetic energy that travels in electromagnetic waves. Thermal Energy • Kinetic energy caused by the vibration of atoms or molecules in a substance Motion Energy • Kinetic energy in a moving object. Sound Energy • Kinetic energy moving through a substance. Electrical Energy • Kinetic energy from the movement of charged particles called electrons. II. Law of Conservation of Energy: *states that the total energy of an object or a group of objects stays the same; energy is never destroyed or created; *energy is just transferred among different types or objects within a system III. Energy Transfer: Energy of the same type can transfer from one material (part) to another. Ex.: Newton’s Cradle transferring kinetic energy from one marble to another. Ex.: Thermal energy from a fireplace transfers to thermal energy in your hands IV. Energy Transformation: Energy can transform from one type to another. Complete the “Summary of Energy Types” diagram.
