Motion

Motion describes how the position of an object changes with time.

Position

Position specifies where an object is located relative to a reference point.

Velocity

Velocity describes the rate of change of position.

$$v = \frac{dx}{dt}$$

Acceleration

Acceleration describes the rate of change of velocity.

$$a = \frac{dv}{dt}$$

Key Idea

Position → Velocity → Acceleration

Each represents a different level of change with respect to time.