Mon Prof Augmenté
Sails and Wind Turbines
Moving air pushes hard on anything in its way. Sails catch that push to move a boat, and turbine blades turn it into electricity.
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In the picture
- A taut sail: moving air pressing on cloth and pulling the boat forward
- A turning turbine blade: air pushing the blade around in a circle
- The generator housing at the top of the tower: the part the blades turn
- Leaning grass on the headland: air flowing past and bending thin stems
Examples
- A kite lifting on a windy day
- A pinwheel spinning in a breeze
Key takeaways
- Moving air can push things, and that push can be turned into electricity
- Wind turbines make electricity without burning fuel
Carry on in the app
Three questions on this lesson. It has left the free week, so its quiz is for subscribers.
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