A Bullet Fired in Dry Water: An Investigative Activity to Learn Hydrodynamics Concepts

Autor/inn/en	Leitão, Ulisses Azevedo; dos Anjos Pinheiro da Silva, Antonio; Trindade do Nascimento, Natália Cristina; da Cruz Gervásio, Lilian Mara Benedita
Titel	A Bullet Fired in Dry Water: An Investigative Activity to Learn Hydrodynamics Concepts
Quelle	In: Physics Education, 52 (2017) 1, Artikel 015024 (7 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0031-9120
DOI	10.1088/1361-6552/52/1/015024
Schlagwörter	Physics; Scientific Concepts; Science Instruction; Inquiry; Computer Software; Video Technology; Equations (Mathematics); Science Experiments + Suchen Sie Ihr Suchwort? Physik; Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht; Equations; Mathematics; Gleichungslehre
Abstract	In this paper we report an investigative activity on hydrodynamics, in the context of an inquiry-based learning project. The aim is to analyse the experiment of a bullet shot underwater. Using "Tracker," a video analysing and modelling software, the displacement of the bullet was measured as function of time, processing a slow motion video from YouTube. It was found that the displacement of the bullet is well described in the first 20ms by the inviscid flow regime, where the Newtonian drag force overcomes the viscous drag. This behaviour is discussed in the context of what Richard Feynman's famous Lectures on Physics describes as "The Flow of Dry Water." (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01