* Speed: This tells you how quickly an object is moving. It's calculated by dividing the distance traveled by the time it takes to travel that distance. For example, a car traveling 60 miles per hour is moving at a speed of 60 miles per hour.
* Velocity: This is similar to speed, but it also includes the direction of motion. For example, a car traveling 60 miles per hour *north* has a velocity of 60 miles per hour north.
* Acceleration: This describes how the velocity of an object is changing over time. It's calculated by dividing the change in velocity by the time it takes for that change. For example, a car accelerating from 0 to 60 miles per hour in 10 seconds has an acceleration of 6 miles per hour per second.
So, to fully describe an object's motion, you need to know both its velocity (speed and direction) and its acceleration.
