Banca de DEFESA: ERISVALDO RAMALHO DOS SANTOS JUNIOR

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : ERISVALDO RAMALHO DOS SANTOS JUNIOR
DATE: 12/12/2023
TIME: 09:00
LOCAL: Remoto no link: https://meet.google.com/qxs-aatt-mnk
TITLE:

Archimedes' Principle in High School: the Hydrostatic Balance and Galileo's Paradox

KEY WORDS:

Physics teaching; Archimedes' Principle; Hydrostatic scale; buoyance; Hydrostatic Paradox.

PAGES: 259
BIG AREA: Ciências Exatas e da Terra
AREA: Física
SUMMARY:

The aim of this work was to contribute to an approach to Archimedes' Principle, considering the nuances of its historical development. It took as its starting point the historical episode involving Archimedes and the mission assigned to him to determine whether the crown of King Hieron of Syracuse had been forged. There is a widespread version of this event, according to which Archimedes solved the problem by discovering buoyancy while bathing. This version was narrated by the Roman architect Marcus Vitruvius, who lived around two centuries after Archimedes, in the 1st century BC. Despite having several physical and historical conceptual inconsistencies, the narrative continues to be propagated in textbooks, including in some collections approved by the National Textbook Program 2021. On the other hand, Galileo Galilei, a great admirer of Archimedes' work, suggested in 1586, in his work called "The Little Scale", that Archimedes had used a Hydrostatic Scale to solve the problem of the crown. Galileo's version of the episode is physically consistent and supported by historical evidence discovered by historians. This version, however, is practically absent from the school context. Equally absent is the existence of a limit of validity for Archimedes' Principle, the so-called Hydrostatic Paradox of Galileo. In this sense, seeking to help overcome these gaps and distortions, this paper proposes an educational product that problematizes the best-known version of the crown episode, as well as discussing its application. It is a didactic sequence aimed at secondary school students, which introduces, in an investigative way, excerpts from the works of Vitruvius and Galileo, as well as contemplating demonstrative experimental activities, explored using a dialogical and investigative approach, including the Hydrostatic Balance itself, and a validity limit for Archimedes' Principle. This sequence was applied to a group of 24 students from the IFPI's Corrente campus. After the didactic intervention, the participants answered a questionnaire which aimed to assess their understanding of the versions of the historical episode in terms of its physical and historical aspects, as well as analyzing their understanding of Archimedes' Principle and its limit of validity. The students' answers to the questionnaire, as well as their interactions during the lessons, were subject of investigation and reflection in this work.

COMMITTEE MEMBERS:
Externo à Instituição - LUIZ ORLANDO DE QUADRO PEDUZZI - UFSC
Interno - 345796 - CICLAMIO LEITE BARRETO
Presidente - 1645641 - JULIANA MESQUITA HIDALGO FERREIRA