* Distance: Velocity tells you how fast something is moving (its speed). This is the rate of change of distance over time.
* Direction: Velocity also tells you the direction of movement. A car traveling at 60 mph eastbound has a different velocity than a car traveling at 60 mph westbound, even though they have the same speed.
Think of it this way:
* Speed is like saying "I'm going 60 mph."
* Velocity is like saying "I'm going 60 mph eastward."
Key Concept: Velocity is a vector quantity. Vectors have both magnitude (size) and direction.