Determinación del módulo de Young de una barra cilíndrica

AUTOR(ES)
FONTE

Rev. Bras. Ensino Fís.

DATA DE PUBLICAÇÃO

19/10/2017

RESUMO

The following work makes use of smartphones in order to determine the elasticity modulus or Young's modulus of a cylindrical brass bar (copper-zinc alloy), employing two different devices: A microphone, to determine the components frequencies of the bar's oscillation, which is compressed at one end and free at the other, and an accelerometer to calculate oscillation frequency of a body attached to the end of the bar (using the phone as an inertial mass). Both methods are compared to each other, and with the reference value for the Young's modulus belonging to the material.

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