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All Journal Momentum: Physics Education Journal Impulse: Journal of Research and Innovation in Physics Education
Barokah, Najilul
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Differences in high school students' mathematical representation ability in homogeneous classes: Which is better? Miyaqi, Iqlides Ahmad; Wilujeng, Insih; Rosana, Dadan; Barokah, Najilul
Momentum: Physics Education Journal Vol. 8 No. 1 (2024)
Publisher : Universitas PGRI Kanjuruhan Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21067/mpej.v8i1.8595

Abstract

Mathematical representation is one of the higher-order thinking skills needed by students in analyzing physics cases as a form of proving the truth of understanding. Referring to the inconsistencies in the results of research on mathematical representation involving gender and the phenomenon of the high ability of female students in heterogeneous classes, it is suspected that there is a relationship between class type and mathematical representation. This study aims to analyze the increase in students' mathematical representation abilities in terms of gender differences in homogeneous classes. The research subjects consisted of class X high school students in Bantul, Indonesia, consisting of 26 boys and 27 girls. The research instrument was 5 physics questions that referred to indicators of mathematical representation. Data analysis to find out how the category of mathematical representation increases using the N-Gain index. The results of this study were (1) the improvement in the ability of the male students' mathematical representation in the medium category was superior to that of the female students, (2) the improvement in the ability to make mathematical expressions and use visual representations was better for the male students, and (3) the ability of the female students in terms of making image representations better than male students. This research implies that further research is needed to be related to the causes of students' misinterpretation in dealing with physics test.
Computational Analysis of Free Fall Motion with Air Friction Constraints Miyaqi, Iqlides Ahmad; Supardi; Barokah, Najilul
Impulse: Journal of Research and Innovation in Physics Education Vol. 3 No. 1 (2023): Impulse: Journal of Research and Innovation in Physics Education
Publisher : Pendidikan Fisika FITK UIN Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/impulse.2023.31-05

Abstract

Free fall motion without initial velocity is a mechanical concept that can be analyzed using analytical, experimental, and computational methods. Free fall motion is difficult to analyze analytically if air friction is not neglected. The aim of this research is to explain computational free fall motion analysis procedures with air friction. Air friction disturbance in free fall motion is represented by the coefficient C which states the drag coefficient is time dependent. In this scientific study, the application used for computational analysis is IDE Spyder with various library support. With the help of this application, a significant difference in the output vmax and tmax is obtained between the two cases of free fall based on the interpretation of the graph that appears.
A Physics-Based Analysis of Barrier Removal on the Yogyakarta Ring Road Using the LWR Traffic Flow Model Miyaqi, Iqlides Ahmad; Barokah, Najilul
Impulse: Journal of Research and Innovation in Physics Education Vol. 6 No. 1 (2026): Vol. 6 No. 1 (2026): Impulse: Journal of Research and Innovation in Physics Edu
Publisher : Pendidikan Fisika FITK UIN Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/impulse.2026.61-04

Abstract

Road separators are used to divide traffic flow so that vehicle movement becomes orderly and minimizes the possibility of accidents. Recently, proposals to remove road separators have been discussed as a strategy to address traffic violations. However, the implications of such measures on traffic-flow characteristics remain unclear and require further investigation. Traffic flow on the Yogyakarta Ring Road is analyzed using a macroscopic traffic flow approach. This study is a simulation-based quantitative investigation that employs the LWR (Lighthill–Whitham–Richards) model to examine the influence of road width, vehicle speed, and traffic flux on traffic dynamics. The concept of fluid flow is used as a qualitative analogy to support the physical interpretation of traffic behavior. This study aims to assess the impact of removing separators on traffic flow characteristics. Literature review and numerical simulations implemented in the Spyder IDE were conducted to model traffic-flow patterns by varying lane width, vehicle speed, and traffic density parameters within the LWR framework. Through three traffic flow engineering simulations, Simulation results show that different vehicle categories exhibit distinct speed and traffic-flux characteristics under varying lane-width conditions. Simulation results indicate that the removal of separators may alter traffic-flow characteristics, leading to changes in vehicle speed and traffic flux that could reduce traffic-flow efficiency under the modeled conditions.
Co-Authors Dadan Rosana Insih Wilujeng Miyaqi, Iqlides Ahmad Supardi