Air and Flight

4. a moveable control on the tailplane that allows the plane to climb or descend.
8. the force of air against any object moving through it.
9. a glider that is lifted by wind and attached by a string to the ground.
10. mixture of oxygen and other gases that surround the earth.
11. an upward force caused by a difference in air pressure.
12. a large balloon that rises with the aid of hot air.
13. the force that pulls things to the ground.
14. structures that extend outward from each side of the airplane.
16. the force that moves a plane forward.
17. the action of the plane's nose moving from side to side.
20. a plane that gets its lift from a powered rotor.
22. a set of blades that push or pull an airplane through the air.
24. friction of air that resists the forward motion of the plane.

1. the force of air pushing on an object.
2. a machine capable of flying.
3. the action taken when one wing is lowered and the other raised during a turn.
5. the fixed tail unit that helps keep the plane stable.
6. a large piece of material that slows things down as they fall from great heights.
7. as air moves, air pressure drops. Therefore, faster air speeding over an object produces lift.
15. the movement of an airplane's nose up or down; also the angle of propeller blades.
18. moveable controls on a plane's wings that make it bank.
19. an unpowered plane that relies on gravity to fly.
21. the action of an airplane banking.
23. a moveable control at the rear of the plane that controls direction.