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| upward force caused by the flow of air above and below an airfoil |
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| device made of blades that spin around a shaft, used to produce thrust fir an airplane |
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| engine that burns fuel in a chamber with an open end making hot gases that produce thrust whten they rush out of the chamber |
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| device made of blades that spin around a shaft, used 2 produce lift fir a helicopter |
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| ability of an aircraft to stay on cource |
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| force that moves an object forward |
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| force caused by gravity pulling down on an object |
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| force acting on a moving object in the oppistie direction of the objects movement slowing the object down |
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| scinitific idea that states that the faster air flows the less pressure it pushes with |
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| study of how air pushes and pulls on objects |
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| aircraft without an enigine that is carried along by air currents |
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| force that pulls objects towards earth |
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| aircraft without wings that is liftes and kept in the air by rotors |
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| object such as wing whose shape and tilt or angle help lift an airraft |
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| streek smooth shape to have as little air resistence as possible |
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