At what angle should the blades of a wind turbine be positioned?
The hypothesis that the power generated by the wind turbine will vary depending on the angle at which the blades are being positioned is proven to be true. The second hypothesis that the maximum power output occurs at blade angles of 45 degrees is proven to be false.
Wind energy and solar energy are environmentally friendly sources of energy compared to the burning of fossil fuels which causes air pollution resulting in global warming. These clean sources of energy do not result in depletion of our planet's natural resources and are easily accessible in remote areas.
This science fair project can also berepeated using blades of different sizes .
You should also try to vary the wind speed and observe if there is any difference in your results.
Wind power - http://en.wikipedia.org/wiki/Wind_power
Wind energy basics - http://windeis.anl.gov/guide/basics/index.cfm
Ensure the blades are properly fixed to the wooden block so that they do not come loose when rotating. Drilling and sawing should be performed by an adult. Safety goggles/gloves should be worn.