A simple pendulum-based measurement of g with a smartphone light sensor

Unofre Pili; Renante Violanda

doi:10.1088/1361-6552/aaab9c

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A simple pendulum-based measurement of g with a smartphone light sensor

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Unofre Pili, Renante Violanda

2018 Physics Education Vol. 53 Issue 4 Article Cited by 25

Abstract

A quick and very accessible method for the measurement of acceleration due to gravity is presented. The experimental set-up employs a smartphone ambient light sensor as the motion timer for measuring the period of a simple pendulum. This allowed us to obtain an experimental value, 9.72 + 0.05 m s-2, for the gravitational acceleration which is in good agreement with the local theoretical value of 9.78 m s-2. © 2018 IOP Publishing Ltd.

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University of San Carlos, Cebu City, Cebu, Philippines

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