  In the course of basic physics, more precisely the course of classical
mechanics should be understood as clearly as possible the subject of rotational
dynamics for students of science and engineering, to have clarity with the
issues concerning rotational dynamics, such as calculation of torque and forces
applied to a moving system. This paper presents the implementation of a
physical pendulum for the physics laboratory using mainly a bar and a disc
mounted on it, which can be moved along this bar, using implements such as a
flexometer to measure the different lengths and a stopwatch to take the
oscillation period of the pendulum.
  This work shows the analytical development using the Simple Harmonic Motion
(S.H.M) and experimental for the elaboration of the data collection and the
realization of the laboratory with which the moment of inertia and the value of
gravity could be obtained. Finally, the theoretical, experimental results and
the respective errors obtained by the experiment are shown.
