Here's a breakdown:

* Speed: A measure of how fast something is moving. It's calculated by dividing the distance traveled by the time it takes to travel that distance.

* Distance: The total length of the path traveled.

* Time: The duration of the motion.

Formula:

Speed = Distance / Time

Example:

If a car travels 100 kilometers in 2 hours, its speed is:

Speed = 100 km / 2 hours = 50 km/hour