Which of these best explains how velocity is different from speed?

Question

A.
Velocity includes a direction and speed does not.
B.
Speed includes a direction and velocity does not.
C.
Velocity includes a distance and speed does not.
D.
Speed includes a distance and velocity does not.

Answer 1

The correct answer is:

A. Velocity includes a direction and speed does not.

Velocity is a vector quantity, which means it has both magnitude (how fast something is moving) and direction (where it is moving). Speed, on the other hand, is a scalar quantity that only considers the magnitude (how fast something is moving) without any regard to direction.