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ERIC Number: EJ1162306
Record Type: Journal
Publication Date: 2017-Jan
Pages: 7
Abstractor: As Provided
ISSN: ISSN-0031-9120
A Bullet Fired in Dry Water: An Investigative Activity to Learn Hydrodynamics Concepts
Leitão, Ulisses Azevedo; dos Anjos Pinheiro da Silva, Antonio; Trindade do Nascimento, Natália Cristina; da Cruz Gervásio, Lilian Mara Benedita
Physics Education, v52 n1 Article 015024 Jan 2017
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."
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A