SRI Unit to Study Rotational Inertia

7.1.3.- STATICS AND DYNAMICS 14.1.3.- STATICS AND DYNAMICS
UNIT TO STUDY ROTATIONAL INERTIA - SRI

INNOVATIVE SYSTEMS

The Unit to Study Rotational Inertia, "SRI", has been designed to perform tests for the analysis of the moments of inertia of rotating bodies.

See general description

Expansions

ICAI

Interactive Computer Aided Instruction Software
MSAC

Modular System for Acquisition and Control

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General Description

The Unit to Study Rotational Inertia, "SRI", has been designed to carry out tests to analyze the moments of inertia of a solid and a hollow cylinder, both with same mass and diameter. The moment of inertia of another hollow cylinder with different mass but same diameter can also be compared.

Besides, systems with different weight and distribution of weights can be studied with a rotating rod to which different weights can be attached in various positions (at different distances from the center).

The unit consists of two support rods. One rod is the rotation axis with the body under study and from the other rod a uniformly accelerated rotational motion in the rotation axis is generated. The rotation axis is accelerated by a fixed pulley and a cable wound on it, where a weight is hung.

The moment of inertia is determined with the measurements of the time (with a chronometer), the mass under study and the acceleration distance.

Exercises and guided practices

GUIDED PRACTICAL EXERCISES INCLUDED IN THE MANUAL

  1. Generation of a uniform acceleration rotation movement.
  2. Study and analysis of the moment of inertia of bodies in rotation movement.
  3. Comparison of the moment of inertia of a hollow cylinder and a solid cylinder in rotation.
  4. Comparison of the moment of inertia of two hollow cylinders of same shape but different mass in rotation.
  5. Study of the influence of the rotating mass in the moment of inertia.
  6. Study and analysis of the moment of inertia as a function of the radius.
  7. Comparison of experimental results and theoretical values.

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