Chapter 11 Vocabulary

Front

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

Back

frame of reference

Front

movement in relation to a frame of reference

Back

relative motion

Front

The length of the path between two points.

Back

distance

Front

A quantity that has a direction associated with it.

Back

vector

Front

The vector sum of two or more vectors

Back

resultant vector

Front

The ratio of the distance an object moves to the amount of time the object moves.

Back

speed

Front

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

Back

average speed

Front

The rate at which an object is moving at a given moment in time

Back

instantaneous speed

Front

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

Back

velocity

Front

The rate at which velocity changes

Back

acceleration