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Uma experiência didática sobre viscosidade e densidade

Authors: Vaz, Ednilson Luiz Silva; Acciari, Heloisa Andréa; Assis, Alice; Codaro, Eduardo Norberto;

Uma experiência didática sobre viscosidade e densidade

Abstract

Neste trabalho, é proposta uma experiência didática com o objetivo de avaliar e diferenciar, de forma simples e clara, duas propriedades intrínsecas da matéria que formam parte do vocabulário cotidiano, a viscosidade e a densidade. Para tanto, foram escolhidos três líquidos de uso doméstico, a saber: solução de sacarose, detergente biodegradável e óleo vegetal de soja. A análise dos resultados coloca em evidência a falta de uma relação de proporcionalidade entre essas propriedades.

In this work, a teaching experience is proposed in order to evaluate and differentiate, in a simple and clear way, two intrinsic properties of matter that make part of daily vocabulary, viscosity and density. To this end, three liquids for domestic use have been chosen, namely saccharose solution, biodegradable detergent and vegetal soybean oil. The results analysis evidences the lack of a proportional relationship among these properties.

Country
Brazil
Keywords

Densidade, Viscosity, Viscosidade, Density, Ensino de química, Chemistry education

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green