The rate of change of velocity with distance is called acceleration.

Here's why:

* Velocity is the rate of change of position with respect to time.

* Acceleration is the rate of change of velocity with respect to time.

However, if you are looking at the change in velocity over a specific distance, you're actually looking at the change in velocity over a specific time interval (because distance traveled depends on time). Therefore, you are still essentially measuring acceleration.

Let me know if you would like a more in-depth explanation of acceleration!