At the same time, air pushing back against the plane is slowing it down, creating a drag force. While the plane is flying forward, air moving over and under the wings is providing an upward lift force on the plane. That push is a type of force called thrust. When you throw a paper plane in the air, you are giving the plane a push to move forward. A force is something that pushes or pulls on something else. The forces that allow a paper plane to fly are the same ones that apply to real airplanes. There's a lot of cool science in this activity, such as how forces act on a plane so it can fly. In this activity you'll get to build a paper plane and change its basic design to see how this affects its flight. But why is this? One factor is the kind of design used to build the plane. Have you ever wondered what makes a paper plane fly? Some paper planes clearly fly better than others.
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