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Moh. Irma Sukarelawan
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INDONESIA
Indonesian Review of Physics (IRiP)
Published by Universitas Ahmad Dahlan
ISSN : 26213761     EISSN : 26212889     DOI : https://doi.org/10.12928/irip
Core Subject : Science, Education,
Astronomy Earth & Planetary Sciences Education Materials Science & Nanotechnology
This journal is continued version of Berkala Fisika Indonesia journal. The journal was published for the first time in 2008. The last published volume was 10 (1) 2018. The ISSN is 2085-0409 (printed version) and 2250-0465 (online version).
Arjuna Subject : Fisika dan Astronomi - Astronomi dan Astrofisika
Articles 6 Documents
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Search results for , issue "Vol. 4 No. 2 (2021)" : 6 Documents clear
Evaluation of STEM-Based Physics Learning on Students' Critical Thinking Skills: A Systematic Literature Review Winarti; Dwi Sulisworo; Narentheren Kaliappen
Indonesian Review of Physics (IRiP) Vol. 4 No. 2 (2021)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/irip.v4i2.3814

Abstract

This article discusses the importance of STEM learning in optimizing critical thinking skills in physics learning. It presents an overview of STEM learning to identify, train and improve students' critical thinking skills to assess misconceptions in the science education research literature since 2010. This study published articles in primary science education journals and indexed them in the leading research database to obtain data on STEM-based physics learning and critical thinking skills. To identify relevant studies in the literature, we conducted a systematic search of the two databases with the document analysis method. The investigation was limited to Indonesia's studies published between 2010 and 2020 for the most recent STEM-based physics learning studies and critical thinking skills based on the most recent findings. This study summarizes STEM learning at the high school and the undergraduate students. The implementation of the research related to STEM-based physics learning with critical thinking skills variables was in various teaching materials, learning models, and learning media. Teachers taught physics concepts using the STEM approach to improve critical thinking skills, including optical tools, thermodynamics, temperature and heat, dynamic fluids, and sound waves. The findings of this study can be used as a reference in the development of STEM learning patterns in the realm of science and physics education to improve students' critical thinking skills, which are the demands of skills in the 21st century that students must possess.
Application of Self-Potential Method to Observe Groundwater Flow in Tanjungpura University Area, Pontianak Muhardi; Kaharudin; Mathaliul Anwar
Indonesian Review of Physics (IRiP) Vol. 4 No. 2 (2021)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/irip.v4i2.4020

Abstract

The study aims to observe groundwater flow in the Tanjungpura University area, Pontianak, West Kalimantan. Data collection applied three lines have a length of 65 m, a distance between the lines is 5 m, and a space between the porous pots is 5 m. Each line has 12 points to measure the self-potential value. The results showed that the variation of the self-potential value before the correction was -9.98 mV to 17.24 mV, while after correction, it was -10.52 mV to 16.92 mV. The self-potential distribution shows that the relatively high potential value is in the south, while the low is in the north. The distribution of self-potential values in the study location is caused by groundwater movement, which flows north. In addition, groundwater also flows to the south, especially at 20-30 m from the base station. Thus, the low self-potential value in the north can be used as a reference to identify groundwater accumulation to explore raw water in the study location.
Meta-analysis of the Effect of the Discovery Model in Physics Learning on Critical Thinking Ability and Knowledge Competence of High School Students Annisa N; Asrizal A; Fatni Mufit
Indonesian Review of Physics (IRiP) Vol. 4 No. 2 (2021)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/irip.v4i2.4217

Abstract

21st Century Education requires students to have the competence and ability to think critically, especially in learning Physics. So we need an appropriate learning model, one of which is the discovery model. In fact, there are still many teachers who cannot choose the right learning model, so students cannot develop their competence and critical thinking skills. The solution is to analyze the effect of the discovery model on students’ critical thinking skills and knowledge competencies in terms of the type of discovery model and physics material. The articles were analyzed from 16 relevant articles originating from international and national articles. Based on the analysis that has been done, four research results were obtained. From the four research results, it is known that the discovery model in terms of the type of discovery model and physics material influences students’ critical thinking skills and knowledge competence.
Comparison of Euler and Euler-Cromer Numerical Methods for Undamped and Damped Spring Oscillation Nurul Miftakhul Janah; Fajrul Falah; Ratnawati; Ishafit; Wipsar Sunu Brams Dwandaru
Indonesian Review of Physics (IRiP) Vol. 4 No. 2 (2021)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/irip.v4i2.4803

Abstract

This study aimed to numerically analyze damped and undamped oscillations of a spring using the Euler and Euler-Cromer methods via Spreadsheet software. The varied parameters in this study were the damping constant, namely 0.1 (damped) and 0.0 (undamped). Various quantities analyzed in this study were position (x), velocity (v), kinetic energy (K), potential energy (U), mechanical energy (E), and phase space as a function of time (t). Iteration was done in t < 60-time steps (seconds). The results of this study indicated that when the spring experiences damping, the numerical results of x, v, K, U, E, and the phase space decrease periodically to zero due to the damping force, both for the Euler and Euler-Cromer methods. Meanwhile, for the undamped spring (zero damping constant), there was a difference in the results for the Euler and Euler-Cromer methods. For the Euler method, the resulting values ​​of x, v, K, U, E, and the phase space increased periodically with time, which was not following the actual situation. According to the simple harmonic oscillation, the Euler-Cromer method values ​​of x, v, K, U, E, and the phase space were stable over time.
Synthesis of Calcium Phosphate from Cockle Shell Loaded by Silver Nanoparticle and Its Antibacterial Activity Evaluation Yuant Tiandho; Rahmad Lingga; Evi.J Evi.J; Rifqi Almusawi Rafsanjani; Fitri Afriani
Indonesian Review of Physics (IRiP) Vol. 4 No. 2 (2021)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/irip.v4i2.4920

Abstract

This study aimed to synthesize calcium phosphate loaded with silver nanoparticles and evaluate its antibacterial activity. We used cockle shells waste as raw material to prepare calcium phosphate. X-ray diffraction analysis showed that the constituent phases of calcium phosphate consist of hydroxyapatite (HA) and β-tricalcium phosphate (β-TCP). The incorporation process of silver nanoparticles on calcium phosphate was carried out in colloidal silver nanoparticles via the green-synthesis method using Citrus x microcarpa Bunge peel extract. The presence of colloidal silver nanoparticles through the green synthesis method was identified using UV-Vis spectrophotometer by the peak of the absorption band that occurred at 468 nm. The incorporation of silver nanoparticles into calcium phosphate did not significantly change the crystalline properties of HA and β-TCP. Evaluation of the antibacterial activity showed the silver nanoparticles had a strong antibacterial effect against Staphylococcus aureus, which also occurs in calcium phosphate loaded by silver nanoparticles. After being incorporated with silver nanoparticles, Calcium phosphate generally has no antibacterial effect. After being incorporated with silver nanoparticles, an inhibition zone with a diameter of about 9.8 mm can form. These results indicated that the method proposed in this study could be an alternative for developing calcium phosphate, which requires self-sterilization properties.
STEM ISCIT Learning Tools to Improve Integrative Scientific Thinking Dian Artha Kusumaningtyas; Dwi Sulisworo; Jumadi; Edi Istiyono
Indonesian Review of Physics (IRiP) Vol. 4 No. 2 (2021)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/irip.v4i2.5265

Abstract

Learning in the era of the new university regulations experienced a revolution in students’ learning style and teachers’ teaching style because this situation caused many changes in the learning system. Different types of learning alternatives are carried out to achieve learning that meets these conditions. Integrative STEM was selected as one of the learning models in the new order era. However, inclusive STEM learning is difficult to do without support or learning tools, especially in distance learning. Based on these needs, this research was carried out to develop support devices for the integrative STEM model in university physics class students. This research is research and development (R&D). The development model used uses a 4D development model. The 4D model is synonymous with definition, design, development, and dissemination. In this study, an assistive device model was developed in an integrative MINT learning device. The analysis results show that the development of integrative learning tools based on STEM for students is rated as good, with an average of 80%.

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