ka11000703

ka11000703 photos on flickr ka11000703 videos on you tube

Our Design First design with 3 red paper blades and sticks Our Experiment REPLACE WITH DESCRIPTION OF YOUR EXPERIMENT Results EDIT WITH YOUR VALUES Reading 1 Current [18.5 ] mA Reading 2 Current [ 19.5] mA Reading 3 Current [ 17.3] mA Reading 4 Current [ 18 ] mA Average Current = [ 18.3] mA Windspeed at fan = [s ] ms-1 Resistance = [100 ] Ohms Power = I * I * R (remember to convert mA to A) = 0.03358 W So with a windspeed of [s ] our turbine generates an average current of [18.3 ] mA delivering [33.5 ] (convert W to mW) mW per second so in 10 minutes it could generate [33.5 * 600 ] 20148.3 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 [ 20148.3 / 77 = 261.7] seconds of playback time, enough to listen to about [ 1.5 ] 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...