They are the scientists who study the fundamental principles governing the movement of objects, including:

* Kinematics: Describing motion (speed, velocity, acceleration, displacement)

* Dynamics: Explaining the causes of motion (forces, momentum, energy)

* Mechanics: Applying these principles to real-world systems

Other fields that study motion include:

* Engineers: Apply principles of motion to design and build structures, machines, and systems.

* Biomechanists: Study the motion of living organisms.

* Astrophysicists: Study the motion of celestial objects.

* Meteorologists: Study the motion of air and weather patterns.