What term describes the rate at which an object changes its position?

The term that describes the rate at which an object changes its position is velocity. Velocity is a vector quantity, meaning it has both magnitude and direction. It indicates how quickly an object is moving and in which direction it is going. For example, if a car is traveling north at 60 kilometers per hour, this speed and direction combined provide a clear understanding of how fast it is changing its position.

Acceleration refers to the rate of change of velocity, which focuses on how quickly an object's speed or direction is changing over time. Force is the interaction that causes an object to change its motion, while momentum is the quantity of motion an object has, dependent on both its mass and velocity. Thus, these concepts, while related to motion, do not define the specific rate at which position changes as velocity does.