Question

kinematics is
a software program for doing gait analysis
the opposite of kinetics - that is, being stationary
a branch of physics that documents motion
an alternative name for kinesiology departments

Explanation:

Kinematics is a branch of physics. It focuses on the description of motion. It deals with concepts like displacement, velocity, acceleration, and time - without considering the forces that cause the motion.

Answer:

a branch of physics that documents motion