**Student**-
Jennifer A. Bruno

Los Angeles **School**-
St. Paul The Apostle

Grade 8

Los Angeles County **Advisor**- Mrs. Debra Fought
**Summary Statement**- This project verifies Bernoulli's Principle using varying airfoils, wind speeds, and drag.
**Abstract**-
**Objective:**My goal is to prove Bernoulli's principle (ratio of top to bottom surface are is directly proportional to lift). As an extension of Bernoulli's principle, I will also investigate drag, and intend to prove that the more streamline a vehicle is, the less drag it produces. Materials: For lift, my materials include 4 airfoils-ranging from a rectangle, to extremely curved-a vacuum (industrial) set on the blower mode w/ varying speeds of 30, 50, and 100 mph, and a jig to hold the airfoils. I measured how much weight it would take to pull the airfoil back to its original position. For drag, the materials and procedure were basically the same, except I used model trucks with varying degrees of streamlining.**Results:**In the lift experiment, Bernoulli's principle was proved. In the drag experiment, I proved my hypothesis to be true, and also came out with a new design for a truck that would reduce drag and increase fuel efficiency.**Conclusion:**Bernoulli's principle proved to be true and is used today in the aircraft manufacturing industry to create more efficient planes. My hypothesis that the more streamline a vehicle was, the less drag it would produce also proved true. This idea is used in many cars and trucks today, not only for fuel efficiency, but for cost savings. **Help Received**- Dad helped with computer graphics.

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