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This lesson focuses on the following Three Dimensional Learning aspects of NGSS: Plan an investigation to provide evidence that the change in an object's motion depends on the sum of the forces on the object and the mass of the object.Ĭlick to view other curriculum aligned to this Performance Expectation

Use Bernoulli's principle to explain what lift means with respect to airplanes.Describe how four key forces (lift, weight, thrust, drag) act on airplanes during flight.Before testing their wing designs on real airplanes, engineers experiment with variations in wing shapes in wind tunnels to see how they perform in moving air.Īfter this lesson, students should be able to: This difference in pressure causes the wing to rise engineers call this lift. Since we know from Bernoulli's principle that faster moving air has less pressure, the air pushes more on the bottom of the wing than on the top of the wing. They design wings so that the air moves faster over the top of the wings than under the wings. With their understanding of Bernoulli's principle, engineers manipulate air pressure to create lift. This engineering curriculum aligns to Next Generation Science Standards ( NGSS).

This is the first of four lessons exploring the four key forces in flight: lift, weight, thrust and drag. Airplane wings create lift by changing the pressure of the air around them. Students revisit Bernoulli's principle (presented in lesson 1 of the Airplanes unit) and learn how engineers use this principle to design airplane wings.