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Costa, V. A. F. – Physics Education, 2022
It is proposed a network approach for electric circuits simplification, that through a unified systematic procedure allows simplifying circuits of any complexity, and evaluation of the equivalent resistances, capacitors and inductors. Circuits to be simplified are characterized by their nodes, and by the elements of different types (resistances,…
Descriptors: Electronic Equipment, Networks, Matrices, Scientific Concepts
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Dorbolo, S.; Brandenbourger, M.; Damanet, F.; Dister, H.; Ludewig, F.; Terwagne, D.; Lumay, G.; Vandewalle, N. – European Journal of Physics, 2011
Glass beads are placed in the compartments of a horizontal square grid. This grid is then vertically shaken. According to the reduced acceleration [image omitted] of the system, the granular material exhibits various behaviours. By counting the number of beads in each compartment after shaking, it is possible to define three regimes. At low…
Descriptors: Probability, Science Instruction, Scientific Principles, Science Experiments
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Žoldošová, Kristína; Matejovicová, Iveta – International Electronic Journal of Elementary Education, 2010
The article is aimed at a partial problem of science process skills development--the evaluation of educational outcomes. In comparison to evaluation of obtained knowledge, the skills development is not so easy to be objectively evaluated. The article provides a proposal of an evaluation tool and describes the first results of its research…
Descriptors: Elementary School Students, Science Process Skills, Science Instruction, Elementary School Science