| A | B |
|---|
| Displacement | is the distance and direction of an object's final position from its initial position |
| Vector | a quantity that is specified by bot a size and a direction |
| Speed | is the distance an object travels per unit of time |
| Instantaneous Speed | is the speed at a single instant of time |
| Average Speed | is the total distance traveled divided by the travel time |
| Velocity | is the speed of the object and its direction of a motion |
| Acceleration | is the change in velocity divided by the time for the change to occur |
| Force | is a push or pull that one object exerts on another |
| Net Force | two or more forces act on an object at the same time |
| Balanced Forces | forces on an object that are equal in size and opposite in direction |
| Unbalanced Forces | forces combine to produce a net force that is not zero |
| Friction | is the force that opposes the sliding motion of two surfaces that are in contact |
| Static Friction | is the frictional force that prevents two surfaces in contact from sliding past each other |
| Sliding Friction | is the force that acts in the opposite direction to the motion of a surface sliding on another surface |
| Air Resistance | opposes the motion of objects that move through the air |
