| A | B |
|---|
| ailerons | sections of the wing which can move up or down and control roll |
| air pressure | the amount of force air exerts on an object |
| aircraft | any weight-carrying structure designed to navigate through the air which can be supported by its own bouyancy or by the action of air against its surfaces |
| airfoil | an object designed to obtain maximum lift when moving through the air (ei: Wing, rudder) |
| archemides' principle | any object placed in a fluid is pushed upward by a force equal to the weight of the fluid it displaces |
| attitude | The direction in which an airplane is pointing in relation to the earth's surface (banking, pitching, yaw) or the relation of the wings and nose to the horizon |
| basket | The container that transports people in a hot air balloon and is located below the silk |
| bernoulli's principle | moving air creates a low pressure area |
| buoyancy | the ability to float or rise when placed in a fluid |
| control surfaces | small surfaces that can be moved to alter airflow and change an airplanes attitude |
| dihedral angle | upward slanting of wings away from the fuselage |
| drag | the resistance air exerts on a flying object |
| elevator | the horizontal part of a plane's stabilizer used to control pitch |
| envelope | the balloon which holds hot air in a hot air balloon |
| fuselage | the body of the plane |
| gliders | aircrafts that have no engines |
| gravity | the force of attraction that pulls objects earthward |
| lift | the force opposed to gravity |
| pitch | up or down attitude of the nose of the plane |
| rocket | any device propelled by ejection of gases and air |
| roll | rotation of the fuselage |
| rudder | the hinged section of the tail of the plane which helps the plane move left or right |
| shroud lines | the connecting lines on a parachute |
| stability | the ability of an airplane to control pitch, roll and yaw in order to maintain altitude after a disturbance |
| terminal velocity | the maximum velocity of a falling body |
| thrust | the force produced by an aircraft which pushed the plane upward |
| vacuum | where there is no air pressure |
| weight | relative heaviness |
| yaw | left or right attitude of the nose of the plane |
