| A | B |
|---|
| Gravity | Pulls the plane down, it pulls everything towards Earth |
| Drag | Holds the plane back, it is the resisting force called friction. |
| Thrust | Pushes the plane forward, it is the driving force of the propeller attached to an engine or the forward force produced by gases escaping rearward from a jet or rocket engine |
| Lift | Pushes the plane up, slower air on the underside of the wing creates more air pressure than the upper curved part of the wing |
| Aileron | hinged main wing surfaces that help control banking for a turn |
| Airfoil | a surface part (wing, tail, or rudder) that is flat or curved creating air movement in a specific direction, designed to keep plane up and control movement through the air which it passes through. |
| Camber | the slight arching tool curve of an airfoil from its leading edge, creates lift |
| Dihedral | an incline wing angle from the center of the wing where the fuselage meet. This angle helps to stabilize the plane and create lift. |
| Elevator | a moveable hinged tail control airfoil that causes the plane's nose to go up or down. |
| Flap | a moveable airfoil hinged at the trailing edge of the wing closer to the fuselage, used for increasing lift or drag |
| Rudder | a moveable airfoil located at the rear stabilizer and used for controlling direction to the right or the left |
| Stabilizer | any horizontal or vertical airfoil in the tail section used for keeping the plane's flight steady, the rudder and elevators are hinged to the stabilizers |
| thermal | rising column of warm air, caused by uneven heating of the earth or sea by the sun |
| Newton's First Law of Motion | if something isn't moving, it won't start moving by itself, and it won't stop unless something pushes against it |
| Newton's Second Law of Motion | things move farther and faster when pushed harder. these objects always move in the direction where they are pushed unless something changes in that direction. |
| Newton's Third Law of Motion | when an object is pushed in one direction, there is always a resistance of the same size in the opposite direction. |
