1. Intro to Physical Science Sherry Carr, Martha Cortes, Richard Gathright, and Diana Rojas C. Dianne Phillips, Instructor

2. Introduction Our goal with this project is to explain and show how a windmill works and how it generates renewable energy

3. Project Overview  We built a windmill that demonstrates how wind can be turned into usable energy.  We used different types and sizes of blades to compare and contrast the efficiency.

4. Objectives  To create a wind energy demonstration that can be used at the college level, as well as the elementary level  We created a lesson plan that can be used at the elementary level to show what renewable energy is and explain it in a way that they understand  Our goal was to power a Christmas bulb that required 1.75 Volts

5. The Power of Wind  Wind power can be calculated using the formula P=½p(π r 2 )V 3  P= Power in the Wind  p= Density of the Air  r= Radius of swept area  V= Wind Velocity  A regular house fan produces 7.85 Watts of power on high

6. The Windmill

7. Project Data Number of BladesInches of BladeWind DirectionBlade Angle Results Volts of electricity 316direct-fan on low45 degreestoo much drag0 314 direct-fan on high 45 degreesbetter0.56 313 direct-fan on high 45 degreesbetter0.79 413 direct-fan on medium 45 degreesbetter0.8 413direct-fan on low0 more drag than before 0.68 413 direct-fan on high 45 degrees more drag than before 0.66 313 direct-fan on medium 45 degrees more drag than before 0.6 213 direct-fan on medium 45 degreesexcellent0.93 213 direct-fan on high 45 degreesexcellent1.07 4 blade mini fan direct fan on high best yet5.60

9. Curriculum Course Content  We used the scientific method to produce the experiment, collect data, and interpret the results.  Renewable energy resources  Physics concepts  Conservation of Energy  Work-Energy Principle  Magnetic Induction  Lenz’s Law

10. Activity Curriculum  Used the turbine to demonstrate Wind Energy.  Created a lesson plan that is geared for 3 rd grade but can be modified for all ages, including college.  Word Document

11. Technology  Technology to be used or already used is:  Microsoft Word  Microsoft Excel  Microsoft PowerPoint  The Internet  Building materials for the windmill  Digital Camera  Cell Phones

12. How will this service the community?  Our project will serve the community by informing about:  reducing greenhouse gas emissions  minimize electric costs  bettering the environment using wind and other renewable sources of energy  Our school and community contacts include:  Dianne Phillips, Bonnie Grimes Elementary School, NWACC Physical Science

13. Community Involvement  We taught Ms. Lay’s 3 rd grade class at Bonnie Grimes Elementary in Rogers, AR about Wind Energy and renewable.  Created a small pinwheel demonstration that the kids could easily make and enjoy.

14. Skills Developed  Team  We built on our team skills to ensure that the work was evenly distributed and thoroughly finished to the best of our abilities  Technological  The team increased their knowledge of:  Certain computer programs  Internet research  Mechanical and electrical skills  Physics  Renewable Energy  Communicational  We developed good communication skills in order to succeed in this project

15. Outcome  Our experiment was successful in all aspects of the project.  We were able to teach younger students about renewable energy and at the same time, teach ourselves.

16. Acknowledgements  Bonnie Grimes Elementary School  Debra Lewis, Principal, Bonnie Grimes  Ms. Lisa Lay, 3 rd grade teacher  Third grade class  C. Dianne Phillips, NWACC Physical Science Instructor  Kidwind.org  Lowes