If you change the velocity of a moving object, you change its motion. Here's why:

* Velocity is a vector quantity, meaning it has both magnitude (speed) and direction.

* Changing velocity can mean:

* Changing speed: The object is moving faster or slower.

* Changing direction: The object is turning or changing its path.

* Changing both speed and direction: The object is accelerating in a curved path.

Therefore, any change in velocity means a change in the object's motion.