期刊名称：JPPPF: Jurnal Penelitian & Pengembangan Pendidikan Fisika
印刷版ISSN：2461-0933
电子版ISSN：2461-1433
出版年度：2015
卷号：1
期号：1
页码：85-90
DOI：10.21009/1.01112
出版社：Universitas Negeri Jakarta
摘要：This descriptive study was motivated by the achievement of students' understanding of the concept of momentum that was still not as expected. The purpose of this study was to determine students’ conceptual understanding and reveal students’ learning difficulties on the concept of momentum in order to plan appropriate learning program. The research subject was 41 students who attend introductory physics course at LPTK in West Java. Data collection tool in the form of multiple-choice diagnostic tests, Momentum Conceptual Survey. Based on the results of diagnostic tests, students had difficulties as follows. First, students found it difficult to apply the concept of momentum in various physics context, especially new physics context that stated qualitatively. Second, students considered the concept of momentum is equal to the concept of energy, namely as a scalar quantity. Third, they found it difficult to apply conservation law of linear momentum in new physics context. Students were too focused on the velocity in solving momentum problems. Fourth, there was fallacy related to the applicability of the conservation law of momentum for objects, not only for the system. Fifth, students were unable to describe momentum, and impulse that expressed in vector representation.
其他摘要：This descriptive study was motivated by the achievement of students' understanding of the concept of momentum that was still not as expected. The purpose of this study was to determine students’ conceptual understanding and reveal students’ learning difficulties on the concept of momentum in order to plan appropriate learning program. The research subject was 41 students who attend introductory physics course at LPTK in West Java. Data collection tool in the form of multiple-choice diagnostic tests, Momentum Conceptual Survey. Based on the results of diagnostic tests, students had difficulties as follows. First, students found it difficult to apply the concept of momentum in various physics context, especially new physics context that stated qualitatively. Second, students considered the concept of momentum is equal to the concept of energy, namely as a scalar quantity. Third, they found it difficult to apply conservation law of linear momentum in new physics context. Students were too focused on the velocity in solving momentum problems. Fourth, there was fallacy related to the applicability of the conservation law of momentum for objects, not only for the system. Fifth, students were unable to describe momentum, and impulse that expressed in vector representation.
