Principles of Flight

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2. Man who discovered the principle that an object experiencing a force of air will always move away from high pressure toward low pressure.
4. Oxygen does this when there are fewer trees higher up on a mountain.
7. The up and down motion of the nose controlled by the elevators.
9. Part located in back of the plane that turns the plane left and right.
11. This is the result of an object's general shape impeding (slowing down) air passing quickly over it.
14. Weight producing things that are a permanent part of the plane.
15. NFL players often find it more difficult to do this at Denver Bronco’s Mile High Stadium.
18. The aerodynamic force that raises an aircraft
20. The left/right motion of the plane's nose controlled by the rudder.
22. The fixed, heavier than air part of a plane that is shaped in such a way that creates lift.
23. The force that propels an airplane forward.
25. A push or a pull that causes an object to move or change.
26. The type of air that is constantly pressing against our bodies
27. When oxygen in the air decreases, air pressure becomes too light for oxygen to permeate this.
29. Air does this when it's heated.
30. The main body of the plane containing the pilots, passengers, and cargo.
32. Air weighs 14.7 pounds per square inch when it's located here.
33. A flight control surface located on the tail that controls the up and down movement of the plane.

1. Air is invisible but it still takes up ______________.
3. Weight producing things that are not a permanent part of the plane.
5. One way to reduce the drag caused by extended landing gear.
6. Airplanes taking off from high altitude airports have crashed due to the air being too thin to provide this kind of lift.
8. Air's ability to resist heat makes it a good ____________________.
9. The rotational movement of a plane created by the ailerons moving in opposite directions.
10. The force that slows down an aircraft.
12. At high altitudes, a mountain climber needs this to avoid losing consciousness.
13. A specially shaped surface, such as an airplane wing, tail, or propeller blade, that produces lift and drag when moved through the air.
16. Similar to flaps on the outer part of the wing that move up and down allowing the pilot to either roll the plane or return it to level flight.
17. Drag cause by the aircraft's surface being rough or having protrusions
19. The type of drag caused when different airflows collide with each other creating turbulence.
21. The force exerted by air
24. Provides the propulsion needed to move the aircraft forward through the air.
26. Air also becomes thinner at high ________________________.
28. Movable surfaces on the back of the wings used to increase or decrease lift.
31. A type of streamlining system that pulls the landing gear up into the fuselage or wings of the aircraft.