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Type: Artigo de periódico
Title: Illustration of uncertanties in measurements by using free fall experiments
Author: Coluci, VR
Paulino, G
de Souza, DC
Vasconcelos, EPR
Abstract: The knowledge of the uncertainty of a measurement is crucial to draw conclusions from experimental results. Random errors are common in experiments and they produce a distribution of measured values that follows the Gaussian shape. In this work, we developed an apparatus based on the free fall phenomenon to assist in the illustration of the concept of uncertainty in measurements. The free fall time of an object has been obtained automatically by the Arduino board and displayed as a histogram on the computer screen. The visualization of the histogram was produced in real time and allowed to check the appearance of the Gaussian shape as the experiment was repeated.
Subject: uncertainty in measurements
free fall
Arduino platform
Country: Brasil
Editor: Soc Brasileira Fisica
Citation: Revista Brasileira De Ensino De Fisica. Soc Brasileira Fisica, v. 35, n. 2, 2013.
Rights: aberto
Date Issue: 2013
Appears in Collections:Unicamp - Artigos e Outros Documentos

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