| A | B |
| Orbit | the path that an astronomical object such as a planet moon or satellite follows around a larger astronomical object such as the Sun |
| Component | a part of something usually of something bigger |
| Streamlined | to design or build something with a smooth shape so that it moves with a minimum resistance through air |
| payload | the passengers equipment or satellites carried by a spacecraft, or the weight of these |
| Apogee | the point farthest from the Earth an object rocket reaches while it moves around the earth |
| Motor time Delay | the length of time between the motor's thrust phase and the time that a small explosion occurs for the recovery phase |
| Misfire | to fail to ignite the fuel mixture in the engine, or to ignite it at the wrong time |
| Center of Gravity | the point through which the sum of gravitational forces on a body can be considered to act ( the teeter totter point) |
| Wadding | soft materail used to protect the recovery system |
| baseline | distance from the launch pad |
| slant angle | the angle up to the top of the rocket at its highest point |
| average speed | average speed=distance/time |
| Height | Height = TAN ( slant angle ) X Baseline |
| Propulsion | The force by which an object such as an automobile, ship, aircraft, or missle is moved forward. |