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Air contains also water vapors and it is in a constant motion due to the differences in temperature between different places on earth.Imagine that we live on a bottom of an ocean of air where the pressure decreases with altitude.There is a direct relation between the air properties and the wing design that you have to consider when you build a plane.
Even as thrust and lift move a plane forward and up, opposing forces are at work, too.
Drag occurs as air pushes back against a plane, fighting its advancing movement.
Have you ever wondered what makes a paper plane fly? In this activity, you will get to build a paper plane and change its basic design to see how this affects its flight.
One factor is the kind of design used to build the plane.
And gravity is always trying to pull the plane earthwards.
Research About Paper Airplanes
Different plane designs put the four forces to work differently: darts, for instance, use a strong thrust while encountering little drag, but they’re also susceptible to little lift at low speeds compared to gravity, so be sure to throw them hard.A fast-moving air stream produces lower pressure; a slow-moving air stream produces higher pressure.This means that the air beneath the wing is pushing up more than the air above the wing is pushing down, and so the wing is lifted.There is a lot of cool science in this activity, such as how forces act on a plane so it can fly, so get ready to start folding!This activity is not appropriate for use as a science fair project.When you will design your plane think about all this forces.Basically your plane will glide through the air so one of the most important things you will have to consider is the shape of the wings.The earliest known date of the creation of modern paper planes was said to have been in 1909.However, the most accepted version of the creation was two decades later in 1930 by Jack Northrop (Co-founder of Lockheed Corporation).Good science fair projects have a stronger focus on controlling variables, taking accurate measurements, and analyzing data.To find a science fair project that is just right for you, browse our library of over 1,200 Science Fair Project Ideas or use the Topic Selection Wizard to get a personalized project recommendation.