Aim: To make a working wind racer.
Method:
Step 1:
Get the metal rod or bamboo stick and put it into your trolly this is your mask.
step 2:
Put down 3 pieces of cardboard into a triangle shape. Fill in the center of the triangle with paper to make your sail.
step 3:
Connect your sail to your mask using tape.
Step 4:
Add more paper to add extra support.
Step 5:
Using two popsicle sticks make a smaller mask.
Step 6:
repeat steps 2 and 3 to a smaller scale but use a plastic bag and connect the two masts using string.
Results:
(My Image coming soon)
(this is not mine so here is something similar.)
Discussion: When we were making these wind races we had to make sure that the wind it could pick up would have enough thrust to push our racer further ahead than the other wind racers. We had made two sails so that there was enough air to push it further ahead even with the drag force in place to make our racer stop at some point. Lift and weight didn't have as much of an effect in this task but because it was on the ground I would assume that there was more gravity and weight force in place.
Conclusion:
Our wind racer did work and we ended up coming 2nd but we won a prize for the most creative. Next time what we would do is make the 2nd mask stronger and add more paper and things to collect the air and push ours further and into first. I second we did a really good job and this shows how the forces are there and come into play.
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