Energy

1. Energy

2. What is Energy • Energy is the ability to cause change or do work • TYPES • Electrical • Chemical • Radiant • Thermal • Mechanical • Thermal • Nuclear

3. Potential and Kinetic Potential • Stored energy • Due to height or position • Has potential to change Kinetic • Energy of motion • Depends on mass and speed

4. Potential Energy • Elastic potential – stored energy in something that can stretch or compress • Chemical potential – stored energy in the chemical bonds • Gravitational potential – stored energy due to position above the earth (they have ability to fall) depends on height

5. Law of Conservation of Energy • Energy can not be created or destroyed it can only change forms • If I put gas in my car, the chemical energy in the gas converts to mechanical energy to power the car some of the energy is given off as thermal energy • REMEMBER – friction turns energy to heat – thermal energy

6. Energy Transformations • The flow of energy from one type to another through a system or series of events • Example • Chemical energy (CE) in ice cream → mechanical energy (ME) in your body → mechanical energy of the bike

7. Energy Types • Electrical Energy (EE) – anything that uses electricity • Chemical Energy (CE) – energy in bonds – food, burning • Mechanical Energy (ME) – anything with moving parts • Radiant Energy (RE) – light • Thermal Energy (TE) – heat • Nuclear Energy (NE) – radioactive

8. Transformations

9. Transformations

10. Transformations