| A | B |
| acceleration | the rate of change in velocity |
| velocity | describes the speed and direction of an object |
| mass | the amount of an object |
| terminal | the greatest velocity a falling object reaches |
| horizontal | velocity parallel to Earth's surface |
| centripetal force | the force on an object pulling toward the center of a circular path |
| speed | the rate change in position (or rate of motion) |
| rate | ratio between two different quantities |
| inertia | property of a body that resist change in velocity |
| rest | zero velocity |
| momentum | mass of an object multiplied by its velocity |
| air resistance | upward force of air against a moving object |
| vertical | velocity in an up or down direction |
| newtons | unit of measurement for force |
| force | a push or pull exerted on one body by another |
| pairs | forces always comes in |
| direction | two objects with the same velocity must be moving in the same |
| gravity | a force that acts on all objects on Earth |
| friction | the force that opposes the motion of two touching surfaces |
| pressure | amount of force per unit area |
| process skills | skills we use daily to solve or find an outcome to a problem |
| scientific method | method use to investigate a question (experiement) |
| projectile motion | the motion of an object influenced only by gravity |
| safety rules | rules to follow in a lab |
| average speed | spped figured over a period of time |
| actual speed | shows the speed the object is traveling in |
| kinetic energy | energy associated with an object due to the object's motion |
| potential energy | energy that is stored within a system |