* Speed is a scalar quantity, meaning it only has magnitude (how fast).
* Velocity is a vector quantity, meaning it has both magnitude and direction.
Example:
* A car traveling at 60 mph has a speed of 60 mph.
* A car traveling at 60 mph north has a velocity of 60 mph north.
In summary: Speed tells you how fast something is moving, while velocity tells you how fast and in what direction it's moving.
