What term describes the progressive change of position of a body?

The term that accurately describes the progressive change of position of a body is motion. Motion refers to the behavior of an object as it changes its position relative to a reference point over time. It encompasses various types of movement, including translation, rotation, and oscillation, and can be described by various parameters such as speed, velocity, and acceleration.

In this context, motion is a fundamental concept in mechanics and is essential for understanding how objects behave in physical spaces. It is the foundational aspect that allows us to analyze the dynamics of systems, as it directly relates to how and why objects move.

Acceleration, momentum, and force, while related to the concepts of movement and dynamics, do not specifically define the change of position itself. Instead, acceleration measures the rate of change of velocity, momentum refers to the product of an object's mass and its velocity, and force is an interaction that causes an object to accelerate. Thus, the correct term that encapsulates the overall idea of a body changing its position is motion.