Tuesday, April 17, 2012

Windturbine-Bergndi!:)

-How do an airplane or wind turbine use air pressure to rotate.
--The wings on an airplpane use air pressure to help the fly the plane, sort of like a bird uses its wings to fly! A wind turbine uses airpressure by the wind turning the blades on the turbine.

-Why was it necessary to twist the rotor blade at an angle.
--It was necessary because if the rotor blade was straight, the wind would hit it straight on. This would make it more difficult to turn the blades.

-Explain how the rotors on the wind turbine & the sail on the sailboats illustrate the same principal.
--On a sailboat, the wind hits the sail at an angle. This is why its possible for a sail to steer a boat. Turbines use this method too.

-Which rotor had the most power and why?
--Our first rotor (the big pink one) worked best. I think this is because the blades were longer, and a bit bigger than our other rotor.

-The maximum output of other wind turbines varied in our class. What was different about the turbine that had the maximum output?
--The difference between Maddy and Kirsten's wind turbine and ours was that there's was smaller, and thinner. Thats why it worked better i think. It was easier for the wind to spin the blades!

No comments:

Post a Comment