| A | B |
| Newton's Second Law of Motion | a net force acting on an object causes the object to accelerate in the direction of the force. |
| Force Equation | force equals mass times acceleration |
| Air Resistance | the force air exerts on a moving object. This force acts in the opposite direction to that of the object's motion. |
| Terminal Velocity | the highest velocity that will be reached by a falling object. |
| Projectile | anything thrown or shot through the air. |
| Horizontal Motion | motion parallel to the Earth's surface |
| Vertical Motion | motion perpendicular to the Earth's Surface |
| Centripetal Acceleration | acceleration toward the center of a curved or circular path. |
| Artificial Sattelites | human-made devices that orbit Earth for a specific purpose. |
| Newton's Third Law of Motion | when one object exerts a force on a second object, the second one exerts a force on the first that is equal in size and opposite in direction. |
| Momentum | a property a moving object has because of its mass and velocity. |
| Momentum Equation | Momentum equals mass times velocity. |
| Law of Conservation of Momentum | The total amount of momentum of a group of objects does not change unless outside forces act on the objects. |