Orbital motions of astronomical bodies and their centre of mass from different reference frames: A conceptual step between the geocentric and heliocentric models

• Tipo: Artigo em Revista Científica Internacional
• Data: 2016

Autores

Guerra, AGC (Autor) Outra; Carvalho, PS (Autor) FCUP

Revista

Título: Physics Education

Vol. 51

Página Final: 055012

ISSN: 0031-9120

Editora: Institute of Physics Publishing

Indexação

Scopus - 5 Citações

Classificação Científica

CORDIS: Ciências Sociais > Ciências da educação > Educação > Ensino da ciência

FOS: Ciências sociais > Ciências da educação

Outras Informações

ID Authenticus: P-00K-TZN

DOI: 10.1088/0031-9120/51/5/055012

Abstract (EN): The motion of astronomical bodies and the centre of mass of the system is not always well perceived by students. One of the struggles is the conceptual change of reference frame, which is the same that held back the acceptance of the Heliocentric model over the Geocentric one. To address the question, the notion of centre of mass, motion equations (and their numerical solution for a system of multiple bodies), and change of frame of reference is introduced. The discussion is done based on conceptual and real world examples, using the solar system. Consequently, through the use of simple 'do it yourself' methods and basic equations, students can debate complex motions, and have a wider and potentially effective understanding of physics. © 2016 IOP Publishing Ltd.

Idioma: Inglês

Tipo (Avaliação Docente): Científica