Inertia Machine

Photograph of inertia machine

Apparatus:
masses, inertia machine

Description:
Run the string and mass over the pulley and release. This causes the moment of inertia demo to turn. This spins quite quickly, so keep digits out of harm's way. The bobs on the arms translate, so put them in many positions to show moment of inertia and radius.

PIRA

Neglecting the mass over the pulley, this apparatus may be used to show the dependance of the period of oscillation on rotational inertia and r.

PIRA 3A10.34