kinematics
    n 1: the branch of mechanics concerned with motion without
         reference to force or mass

Kinematics \Kin`e*mat"ics\, n. [Gr. (?),(?) motion, fr. kinei^n
   to move.] (Physics)
   The science which treats of motions considered in themselves,
   or apart from their causes; the comparison and relation of
   motions.
   [1913 Webster]

   Note: Kinematics forms properly an introduction to mechanics,
         as involving the mathematical principles which are to
         be applied to its data of forces. --Nichol.
         [1913 Webster]