The measure of both speed and direction of an object is called velocity.

Here's why:

* Speed tells you how fast an object is moving.

* Direction tells you which way the object is moving.

Velocity combines both of these aspects, providing a complete picture of an object's motion.

For example:

* A car traveling at 60 miles per hour is its speed.

* A car traveling at 60 miles per hour north is its velocity.