| A | B |
| Newton's first law | Object at rest remains at rest, object in motion remains in motion |
| Newton's second law | acceleration of an object = the force applied to it divided by its mass |
| Newton's third law | To every force there is an equal and opposite force |
| force | a push or pull from one object on another |
| average speed | total speed divided by total time |
| speed | distance traveled divided by time to travel the distance |
| velocity | speed of an object in a particular directino |
| acceleration | rate at which speed changes |
| balanced forces | result in no movement |
| unbalanced forces | result in movement |
| the energy of motion | kinetic |
| the energy stored in an objects hieght | potential gravitational energy |
| momentum | a measure of an object's mass times its velocity |