A location or object is used to describe a position.
What is 'a reference point'
What was the runner doing from point B to point C?
What is stopped?
The full length of a racetrack would be called the what?
distance
How far did the runner travel from point C to point D?
What is 9 km?
A measurement of the speed and direction of an object.
What is velocity?
What is the displacement of the runner for this journey?
What is 0 meters?
The distance the biker traveled if they began at A, traveled to B, and then ended at C.
What was the total distance traveled by the runner?
What is 24 kilometers?
The displacement of the rider if they traveled from A and then ended at C.
What is 5 meters?
What is the importance of a distance/time graph?
A distance-time graph shows how far an object has travelled in a given time.