* Speed is a scalar quantity, meaning it only has magnitude (how fast something is moving). For example, a car traveling at 60 mph has a speed of 60 mph.
* Velocity is a vector quantity, meaning it has both magnitude and direction. For example, a car traveling 60 mph east has a velocity of 60 mph east.
Key Differences:
* Direction: Velocity includes direction, while speed does not.
* Changing Velocity: An object can have constant speed but changing velocity. For example, a car going around a circular track at a constant speed is still changing velocity because its direction is constantly changing.
In summary:
* Speed tells you how fast something is moving.
* Velocity tells you how fast something is moving and in what direction.
