Here's why:
* Speed tells you how fast an object is moving.
* Direction tells you which way the object is moving.
For example:
* "The car is traveling at 60 miles per hour" only tells you the speed.
* "The car is traveling at 60 miles per hour eastbound" tells you both the speed and direction, making it the velocity.
Key takeaway: Velocity is a vector quantity, meaning it has both magnitude (speed) and direction.