March 19, 2013 A-Day Objective: YWBAT give examples of energy conversions among the different energy forms. Drill: Describe how turbines can be used to produce electricity from running water. Homework Study WOW

The falling water (kinetic) turns the turbine, which turns a crank on a generator (mechanical), causing it to produce electricity.

Did you know…? A computer- controlled electronic circuit allows turbines to generate current with a constant frequency, regardless of wind speed.

Today’s Activities  Drill  Energy Conversions  Conclusion

Energy Conversion Diagrams  Draw cross sections of the following topics, Hair dryer, wind turbine, car engine, riding a bike, water wheel, electric generator, light bulb, toasterThe cross section should include.  Be sure to include: --A detailed diagram of how the structure works. --A list of the specific energy conversions and where they occur

Closure What part of the hair dryer changes electrical energy into mechanical energy into kinetic energy?

Conclusion Answer The motor changes electrical energy into mechanical energy which converts into kinetic energy as the fan blades move.