Instantaneous Speed

The rate at which an object moves at that point in time

Speed

The ratio of the distance of an object moves to the amount of time it takes it to move

Average Speed

The total distance traveled divided by the time it takes to travel that distance

Velocity

The speed and direction an object is moving measured relative to a reference point

Frame of Reference

A system of objects that are not moving with respect to one another

Relative Motion

Movement in a relation to a frame of reference

Displacement

A straight line from starting point to ending point

Resultant Vector

The sum of two or more vectors

Vector

The measure of displacement

Distance

The length of the path traveled

Acceleration

the rate the at which the velocity changes

Free Fall

The movement of object towards the earth because of gravity

Constant acceleration

a steady change in velocity

linear graph

a graph which the displayed data from straight line

nonlinear graph

a graph in which the displayed data is in a curved line