ka11010703

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Our Design paper plate design Our Experiment This one didn't spin very fast but looked very efficient Results Reading 1 Current [ 7.2] mA Reading 2 Current [ 6.9] mA Reading 3 Current [ 7.3] mA Reading 4 Current [ 7.7] mA Average Current = [ 7.275] mA Windspeed at fan = [s ] ms-1 Resistance = [100 ] Ohms Power = I * I * R (remember to convert mA to A) = 0.00529 So with a windspeed of [s ] our turbine generates an average current of [7.275 ] mA delivering [5.29 ] (convert W to mW) mW per second so in 10 minutes it could generate [5.29 * 600 = 3175] mW. If playing music on an iPod classic consumes about 77mW per second, 10 minutes of turbine time (assuming 100% energy transfer efficiency) can power [ 3175 / 77 = 41.2] seconds of playback time, enough to listen to about [ 0.2 ] 3 minute songs. Thoughts REPLACE THIS WITH YOUR THOUGHTS: HOW COULD YOUR WINDMILL BE IMPROVED, HOW COULD THE EXPERIMENT BE IMPROVED, IS 100% EFFICIENCY ENERGY TRANSFER REALISTIC, WHAT WOULD YOU ASK AN EXPERT, HOW CAN TECHNOLOGY SUPPORT SCIENCE TEACHING AND LEARNING, ETC...