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Revealing students' thinking schemes in solving direct current electrical circuit problems Handhika, Jeffry; Cari, Cari; Suparmi, Suparmi
Momentum: Physics Education Journal Vol. 9 No. 2 (2025)
Publisher : Universitas PGRI Kanjuruhan Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21067/mpej.v9i2.11354

Abstract

Students’ thinking schemes must be revealed to discover the students’ fundamental problems in solving direct current (DC) electrical circuit problems. Concept maps and problem-solving can be used to reveal students’ thinking schemes. The method used in this study is descriptive qualitative. The research was conducted on second-semester students who took the Fundamental Physics II course at a private university in Madiun in 2023/2024, totaling 9 students. Data was collected using the documentation method in the form of assignments to make concept maps, tests, and interviews. The results of this study reveal students’ thinking schemes, which can be categorized into computational thinking (CT), non-CT, and combined thinking (CT and non-CT). Non-CT students’ thinking schemes use trial and error methods to solve problems and intuition to conclude.
Does the cognitive activity can generate student’s physics argumentation performance features? Viyanti, Viyanti; Cari, Cari; Prasetyo, Zuhdan Kun; Maulina, Hervin
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 9 No 1 (2020): Jurnal Ilmiah Pendidikan Fisika Al-Biruni
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/jipfalbiruni.v9i1.6264

Abstract

A performance feature is a domain-specific to the organization of knowledge. Well-organized knowledge is characterized when students are able to collaborate the knowledge features of the physics problem.  The knowledge feature can be a cognitive activity where teachers influence students by changing the pattern of knowledge from "defining" to "applying" knowledge. This research aims to analyze whethet the cognitive activity from the teacher can generate student’s argumentation performance features or no. This study is a qualitative descriptive study which involved 100 of high school students in Bandar Lampung.   The data  was collected using a research instrument in the form of reasoned multiple choices which has been validated.  The results of this study showed that students' involvement in cognitive activity by following variety of procedures can generate student’s argumentation performance fetaures.
Thermodynamic and Magnetic Properties of Diatomic Molecules for Non-central Potentials under the Influence of External Magnetic Fields Cari, Cari; Suparmi, A; Permatahati, Luthfiya Kurnia
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 12 No 2 (2023): Jurnal Ilmiah Pendidikan Fisika Al-Biruni
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/jipfalbiruni.v12i2.18008

Abstract

This paper studies the thermodynamic and magnetic properties of some diatomic molecules governed by Scarf and Morse non-central potentials under external magnetic and electric fields. The Schrodinger equation with Scarf and Morse non-central potentials is solved using Supersymmetric WKB quantization conditions to obtain the energy equation and wave function. The influence of the magnetic and electric fields on the energy eigenvalue was discussed. The results show that energy increases with the increasing magnetic field and decreases with the increasing electric field. Moreover, the thermodynamic and magnetic properties involving internal energy, free energy, specific heat capacity, entropy, magnetization, magnetic susceptibility, and persistent current were determined by calculating the partition function. The internal energy increases linearly with the increasing magnetic field for a given temperature. Meanwhile, the specific heat capacity decreases with the increasing magnetic field. We point out that the presence of magnetic and electric fields makes the system exhibit diamagnetic behavior.