| A | B |
|---|
| Distance | how far an object moves |
| Displacement | the distance & direction of an objects change in position from the starting point |
| Speed | distance an object travels per unit of time |
| Average speed | total distance an object travels divided by the total time it takes to travel that distance |
| Instantaneous speed | speed of an object at any given time; is constant for an object moving with constant speed, and changes with time for an object that is slowing down or speeding up |
| Velocity | the speed and direction of a moving object |
| Acceleration | rate of change in velocity; can be calculated by dividing the change in velocity by the time it takes the change to occur |
| Force | a push or a pull exerted on an object |
| Net force | sum of the forces that are acting on an object |
| Balanced forces | forces on an object that combine to give a zero net force and do not change the motion of the object |
| Inertia | resistance of an object to a change in its motion |
