Wind mill

There are two types of windmills in these instructions There are two types of windmills in these instructions. You will build both and compare the effectiveness of them. Windmill

If you’ve never used K’Nex before, read over these instructions to help you get started! K’Nex Basic

Check out

You will need to make your own paper sails

Windmill A After you’ve built Windmill A, check out the box fan. Place the fan 30 cm, 60 cm and 100 cm away from the windmill. Using a stopwatch, time how long it takes for the windmill to start spinning constantly at each distance. Compile this data into a table. Windmill A

Time for windmill to start spinning Distance from fan Time for windmill to start spinning 30 cm 60 cm 100 cm Windmill A

STOP! Test Windmill A before modifying it to become Windmill B! You must test both Windmill A and Windmill B! STOP!

You’ll need to make your own paper sails.

After you’ve modify your project to Windmill B, check out the box fan. Place the fan 30 cm, 60 cm and 100 cm away from the windmill. Using a stopwatch, time how long it takes for the windmill to start spinning constantly at each distance. Compile this data into a table. Windmill B

Time for windmill to start spinning Distance from fan Time for windmill to start spinning 30 cm 60 cm 100 cm Windmill B

Windmill Research/Questions In at least five (5) sentences, describe which windmill performed better, A or B. Describe why you think this was the reason. Windmill Research/Questions