Final answer:
The length of the path traveled by an object is called distance. Velocity and speed are related to an object's motion but do not give us the length of the path traveled. Displacement represents the change in position of an object and considers direction as well.
Step-by-step explanation:
The length of the path traveled by an object is called distance. It is a scalar quantity that represents the total length of the path between the starting and ending points of an object's motion.
Velocity and speed are related to the object's motion, but they do not give us the length of the path traveled. Velocity is a vector quantity that describes both the speed and direction of an object's motion. Speed, on the other hand, is a scalar quantity that only describes how fast an object is moving.
Displacement is another vector quantity that represents the change in position of an object. It is different from distance because it considers the direction of motion as well. Displacement tells us the shortest path between the starting and ending points, while distance gives us the total length of the path traveled.