Testing discrepancies in the measurement of the acceleration of gravity in a physical pendulum experiment

Autor:	Ana R. Romero Castellanos, C. E. Alvarez-Salazar, P. C. de Holanda
Rok vydání:	2020
Předmět:	Physics Gravity (chemistry) QC1-999 acceleration of gravity General Physics and Astronomy Mechanics Physical pendulum Displacement (vector) Education Acceleration Physical Pendulum Value (mathematics)
Zdroj:	Revista Brasileira de Ensino de Física Revista Brasileira de Ensino de Física v.42 2020 Sociedade Brasileira de Física (SBF) instacron:SBF Revista Brasileira de Ensino de Física, Volume: 42, Article number: e20190154, Published: 25 NOV 2019
ISSN:	1806-9126 1806-1117
DOI:	10.1590/1806-9126-rbef-2019-0154
Popis:	After analysing results on the measurement of the acceleration of gravity using a physical pendulum in our teaching laboratory, we found that the value reported by the students is always higher than the theoretical expectations. In this article we analyze critically some of the students hypotheses for such displacement, and we perform an investigation of our own to detect what is leading to this result. We disregarded any flaw on the experimental procedure performed by the students, and instead, concluded that the miscalibration of the laboratory instruments was distorting the students measurements, leading to a ~ 5 % increase in the calculated value of the acceleration of gravity.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4fddd9369b1a970744d05561a1734dae https://doi.org/10.1590/1806-9126-rbef-2019-0154 Zobrazit plný text záznamu