# Aerodynamics. Learning Standards 6. Transportation Technologies Transportation technologies are systems and devices that move goods and people from one.

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Aerodynamics

Learning Standards 6. Transportation Technologies Transportation technologies are systems and devices that move goods and people from one place to another across or through land, air, water, or space. 6.4 Identify and explain lift, drag, friction, thrust, and gravity in a vehicle or device, e.g., cars, boats, airplanes, rockets.

Learning Objectives At the conclusion of the lesson the student will be able to: 1)Describe & explain Aerodynamics & the forces of lift, drag, thrust, friction & gravity 2)Explain how these forces affect transportation vehicles

Aerodynamics The study of the motion of the air when it interacts with a moving object

Lift : Force:A push or pull in a specific direction Weight: Force caused by the gravitational attraction of the Earth on the plane Force created by the engines that move the plane through the air Drag: Force that opposes (tries to stop) the plane’s motion through the air Thrust: Force created by a solid object moving through air WEIGHT For the plane to fly, it’s LIFT must be greater than it’s

The shape of the airplane’s wings is what creates the LIFT that makes the airplane fly The curved surface of the top of the wing means that there is less friction so the air moves faster - this means that there is less pressure over the wing

The shape of the airplane’s wings is what creates the LIFT that makes the airplane fly The flat surface of the bottom of the wing means that there is more friction so the air moves slower - this means that there is more pressure under the wing *** This pushes the airplane up***

Greater pressure under the wing pushes the airplane up (LIFT)…allowing it to fly

Weight: Force caused by the gravitational attraction of the Earth on the car Force created by the engine to move the car through the air Drag: Force that opposes (tries to stop) the car’s motion through the air Thrust: Drag Thrust Spoiler: Reduces Lift (opposite of the wings of an airplane) Forces on a Race Car

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