That's partially correct. Acceleration is not just a term for change in velocity, but rather the rate of change of velocity.

Here's a breakdown:

* Velocity: Describes both the speed and direction of an object's motion.

* Acceleration: Describes how quickly the velocity of an object is changing. This can involve:

* Changing speed: A car speeding up or slowing down.

* Changing direction: A car turning a corner.

* Changing both speed and direction: A ball thrown through the air.

Therefore, acceleration is not just about whether velocity is changing, but how quickly it is changing.

Let me know if you'd like more details or examples!