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Department of Physics, Universitas Negeri Gorontalo Lt.1 Gedung F.MIPA, Jl. Prof Dr. Ing B.J. Habibie, Desa Moutong, Kec. Tilongkabila, Kab. Bone Bolango, Provinsi Gorontalo 96119, Indonesia
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Jambura Physics Journal
Published by Universitas Negeri Gorontalo
ISSN : 26549107     EISSN : 27215687     DOI : https://doi.org/10.34312/jpj.v1i2
Core Subject : Science, Education,
Education Energy Materials Science & Nanotechnology Physics
The Jambura Physics Journal (JPJ) is the official journal of Physics Department, Faculty Mathematics and Natural Science, Universitas Negeri Gorontalo. JPJ is a peer-reviewed article publish articles twice a year in April and October. The research article submitted to this online journal will be peer-reviewed at least 2 (two) reviewers. The accepted research articles will be available online following the journal peer-reviewing process. The language used in this journal is English or Indonesia. The Jambura Physics Journal is an integrated forum for communicating scientific advances in the field of physics and education physics. The journal reports significant new findings related to physics applications and education physics, including learning media development, learning methods development, learning methods implementation, and several application of physics. The Jambura Physics Journal publishes comprehensive research articles and invited reviews by leading experts in the field. Papers will be selected that high scientific merit, impart important new knowledge, and are of high interest to physics and education physics community.
Arjuna Subject : Umum - Umum
Articles 52 Documents
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PENGARUH MODEL PEMBELAJARAN BERBASIS VIRTUAL LABORATORY TERHADAP HASIL BELAJAR FISIKA SISWA PADA MATERI GELOMBANG BUNYI DAN GELOMBANG CAHAYA Nurfadlun Faradila Dalu; Tirtawaty Abdjul; Nova Elysia Ntobuo
Jambura Physics Journal Vol 4, No 2 (2022): October 2022
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jpj.v4i2.14759

Abstract

Nurfadlun Faradila Dalu. 2019. The Effect of Virtual Laboratory- Based Learning Model on the Physics Learning Outcomes of Class XI Science Natural High School Student on Sound Wave and Wave Materials. Gorontalo Physics Education Study Program, Departement of Physics, Faculty of Mathematics and Natural Sciences Gorontalo State University. Guided: (I) Dr. Tirtawaty Abdjul,S.Pd, M.Pd., (II) Dr. Nova Elysia Ntobuo, S.Pd, M.Pd The purpose of this study was to determine differences in student physics learning outcomes that were taught with a Virtual Laboratory based learning model with student physics lerning outcomes using Real Experiment. The research method used was a quasi experiment with research design Posttest Only Control Group Design. The population of this study were all students of class XI SMA Negeri in North Gorontalo Regency in the academic year 2017/2018 and the study sample was taken by 2 schools using purposive sampling technique. Related data were analyzed by independent ttest. Theresult of data analysis obtained student learning outcomes that are taught using a Virtual Laboratory based learning model is superior to learning models that use Real Experiment.
ANALYSIS OF STUDENT PERCEPTIONS ON THE USE OF ONLINE LEARNING APPLICATIONS USING THE RASCH MODEL IN PHYSICS LEARNING Dewa Gede Eka Setiawan; Vivit Idrus; Muhammad Yusuf; Trisnawaty Junus Buhungo; Ritin Uloli
Jambura Physics Journal Vol 4, No 2 (2022): October 2022
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jpj.v4i2.17286

Abstract

SMAN 1 Tapa initially used the Zoom and Google Meet applications, but there were still many students who were late for learning due to their difficult circumstances in getting internet coverage, so the teachers decided to change the application by using Classroom and Whatsapp to minimize student delays in learning. This study aims to describe students' perceptions of the use of online learning applications using Rasch modeling in physics learning. This research method is descriptive qualitative. The results of this study indicate that students' perceptions based on absorption indicators of object stimuli from outside the individual, students prefer online learning using Classroom and Whatsapp applications. Based on the indicators of understanding or understanding of the object, students understand and understand physics learning. Based on the indicators of individual evaluation of the object, students are enthusiastic and motivated in learning physics. Thus, it can be concluded that students' perceptions of online learning using the classroom and whatsapp applications can help and facilitate students in the learning process during the pandemic in class XI IPA 1.
PROTOTYPE DESIGN OF 4 PROBE METHOD BASED ON MICROCONTROLLER WITH MEMORY CARD STORAGE MODULE Imam Sya'roni; Nugrahani Primari Putri; Lydia Rohmawati
Jambura Physics Journal Vol 4, No 2 (2022): October 2022
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jpj.v4i2.15840

Abstract

The goal of this study is to create a prototype that uses a microcontroller to determine the physical phenomenon worth of a fabric victimisation, method by four-point probe. The amendment in resistance of a material once an electrical current flow through it's wont to quantify electrical conductivity. The example took measurements and saved them as data.txt. Using IC 741 100X gain amplifier circuit, prototype amplifies the output voltage and current for convenient monitoring. The source flag value is used in prototype calibration; the tolerance value for the measurement uncertainty of voltage is 2.1 percent and tolerance value of uncertantanty of current is 2.1 percent, respectively, based on comparisons with the calibration output. For voltage readings, prototype's measurement accuracy is 97.89 percent, and for current assignments, it's 97.64 percent. The output values will be saved and analyzed before being graphed to determine the material's conductivity value. Pani, a substance with a composition of 0.25 M anilin + 0.5 M HCL, was used to test the electrical conductivity of prototype Four Point Probe. The experiments were carried out by varying the voltage from 1 to 5 until the value of material conductivity Pani was between 0.9 and 1,25 x 107 (m)-1. Range 73.47 percent linearity value.
PENGEMBANGAN E-MODUL PRAKTIKUM VIRTUAL CROCODILE PHYSICS PADA MATERI GELOMBANG BUNYI Ria Asep Sumarni; Yoga Budi Bhakti; Sri Mayanty; Amelia Megananda
Jambura Physics Journal Vol 4, No 2 (2022): October 2022
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jpj.v4i2.15558

Abstract

Pembelajaran daring menjadi suatu hal keharusan di dunia pendidikan saat ini, hal ini akibat adanya Covid-19. Segala inovasi dari metode pembelajaran dan media pembelajaran, mengalami berbagai perubahan guna menjadikan kegiatan pembelajaran yang efektif. Peneliti melakukan pengembangan media pembelajaran berupa E-modul praktikum virtual Crocodile Physics pada materi gelombang bunyi. Tujuan dari penelitian ini adalah untuk mengetahui kelayakkan E-modul praktikum virtual tersebut. Metode yang digunakan dalam penelitian ini adalah menggunakan metode Penelitian dan Pengembangan (Research dan Development/RD). Hasil penelitian E-modul praktikum virtual Crocodile Physics pada materi gelombang bunyi, masuk dalam kriteria layak digunakan sebagai media pembelajaran praktikum virtual. E-modul praktikum virtual ini selain berisi prosedur praktikum secara runtun, tetapi juga berisi video tutorial praktikum yang memudahkan bagi pengguna untuk mengikuti setiap langkah praktikum.
ANALISIS HASIL VALIDITAS BAHAN AJAR FISIKA MATERI PERUBAHAN IKLIM BERBASIS WEB Rahman Setiawan; Abdul Hakim; Zulkarnaen Zulkarnaen
Jambura Physics Journal Vol 4, No 2 (2022): October 2022
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jpj.v4i2.16366

Abstract

This study aims to develop web-based physics teaching material. The ADDIE (Analysis, Design, Development, Implementation, and Evaluation) model was used for the development of the teaching materials on climate change subject. This research focused on the validity aspect of the teaching material in the Development stage. The validity of teaching materials was based on two aspects: feasibility as physics material content and teaching media. The validity data were collected from experts and learning practitioners using validation instruments. The results showed that the developed web-based physics teaching material was categorized as good for physics material content with a validity level of 4.13. This teaching material was rated as very good as teaching media with a validity level of 4.55. Results of this study indicate that the developed web-based physics teaching material could be helpful for teaching topics related to climate change.
SISTEM KENDALI JARAK JAUH BEBAN LISTRIK RUMAH TANGGA BERBASIS INTERNET OF THINGS (IoT) Hermansyah Hermansyah; Nur Asmi Rahmawati; Alamsyah Achmad
Jambura Physics Journal Vol 5, No 1 (2023): April 2023
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jpj.v5i1.19026

Abstract

This study aims to optimize the existing remote control system. Previous Remote Control Systems only operated on local networks using the TCP/IP model. The control system created is a remote control system development of the TCP/IP model. This control system can control and monitor the status of electrical loads using a smartphone device without being limited by distance. The method used in this research is the system design method. The result of this research is a prototype capable of controlling electrical loads from an unlimited distance. The test results show that the system works according to the program that was created. This system has great opportunities to be developed in terms of user access security.Penelitian ini bertujuan untuk optimalisasi sistem kendali jarak jauh yang sudah ada sebelumnya. Sistem Kendali jarak jauh sebelumnya hanya beroperasi pada jaringan lokal menggunakan model TCP/IP. Sistem kendali yang dibuat merupakan pengembangan sistem kendali jarak jauh model TCP/IP. Sistem kendali ini dapat mengontrol dan memonitor status beban listrik menggunakan perangkat smartphone tanpa dibataisi oleh jarak. Metode yang digunakan pada penelitian ini adalah metode sistem rancang bangun. Hasil dari penelitian ini adalah sebuah prototype yang mampu mengontrol beban listrik dari jarak yang tidak terbatas. Hasil ujicoba menujukkan bahwa sistem bekerja sesuai dengan program yang dibuat. Sistem ini memiliki peluang yang besar untuk dikembangkan dari sisi keamanan akses pengguna.
THE EFFECT OF HYDROTHERMAL TEMPERATURE AND UREA DOPING TIME ON THE OPTICAL PROPERTIES OF LEMONGRASS-BASED CARBON NANOPARTICLES (CNPs) Rahmaniah Nalwi; Akhiruddin Maddu; Mersi Kurniati; Jumardin Jumardin
Jambura Physics Journal Vol 5, No 1 (2023): April 2023
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jpj.v5i1.19048

Abstract

Carbon Nano Particles (CNPs) sourced from spiced lemongrass have been produced by the hydrothermal method at hydrothermal temperatures of 120, 140, 160 and 180 0C. The Stokes energy shift occurs due to this absorption transition and the spectrum width is determined by the electronic transition from one energy state to another. This event occurs due to the difference in energy between the two adjacent states due to the smaller vibrational state when compared to the electronic state of the CNPs.  The carbon nanoparticles (CNPs) size measurement results showed a peak value of 38.63 nm.  Functional group analysis by FTIR spectroscopy showed that the CNP consists of C=C, C-O, OH and C-N-C bonds. The Urbach energy (Eu) increased with increasing hydrothermal synthesis temperature at two hours (0.13, 0.16, 0.19 and 0.29) eV and three hours (0.12, 0.17, 0.19 and 0.28) eV. The bandgap energy (Eg) decreased with increasing hydrothermal synthesis temperature to two hours (2.30, 2.24, 2.00 and 1.92) eV and three hours (2.22, 2.20, 2.17 and 1.75) eV. The expansion of urea as a nitrogen source was carried out at a aqueous temperature of 180 0C for 2 hours and 3 hours within the blend of CNPs. The addition of urea gave a different effect on the bandgap energy (Eg) and Urbach energy (Eu) on the two CNPs. The bandgap energy (Eg) both increased from two hours (1.92 eV) to three hours (2 .22 eV), while urbach energy (Eu) decreased for a duration of two hours (3.336 eV) to three hours (3.330 eV) after adding urea. hydrothermal temperature due to synthesis time so that the structure of the CNPs becomes more stable and homogeneous
THERMAL PERFORMANCE OF RESIDENTIAL HAUSE USING GREEN ROOF BY UTILIZING THE PASSION FRUIT PLANTS (PASSIFLORA EDULIS) AS ROOF COVER Suwaldi Mopangga; Mohamad Jahja; Dewa Gede Eka Setiawan; Mursalin Mursalin; Idawati Supu; Meilan Demulawa; Abdi Gunawan Djafar
Jambura Physics Journal Vol 5, No 1 (2023): April 2023
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jpj.v5i1.19358

Abstract

Urbanization is the movement of people from villages to cities, this has caused an increase in population growth in urban areas resulting in increased demand for development which has reduced land for green spaces, green roofs are present as a farming concept amidst limited land in urban areas as well as assisting in passive cooling. The process of photosynthesis must play a role in roof shading. The selection of vegetation in the form of passion fruit vines as a roof covering material can spread up to 24 m, the object of research is a house in a housing complex by comparing two rooms, using a vegetation roof cover and without a vegetation roof cover, based on the results obtained a room with a vegetation roof cover experienced a decrease in temperature as the growth of vines covered the roof, the results obtained were a comparison between the two rooms, namely 0.1℃ in January, 1.1℃ in February and 2.6℃ in March when the peak temperature is during the day.
PAPAN PARTIKEL PEREDAM PANAS BERPENGUAT LIMBAH SERAT DAUN NANAS DAN KERTAS HVS SEBAGAI ALTERNATIF PERBAIKAN KUALITAS LINGKUNGAN DALAM RUANGAN Oktavia Oktavia; Diani Lestari; Risna Kirana Rokar; Widodo Budi Kurniawan
Jambura Physics Journal Vol 5, No 1 (2023): April 2023
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jpj.v5i1.18778

Abstract

The limited supply of wood as a raw material in various industries requires a better alternative material. Wasted-based composite engineering can be a solution to this problem. What's more, composite can be engineered according to needs, such as having the ability to reduce heat to maintain comfortable room temperature conditions. Therefore, in this research, a particle board reinforced by pineapple leaf fiber waste and HVS paper waste was developed to know the effect of the particle board reinforcement composition on reducing heat. In this research, a comparison of pineapple leaf fiber waste and HVS paper waste was used at 100%:0%; 70%:30%; 50%:50%; 30%:70%; and 0%:100% with resin adhesive. This particle board is made by mixing all the ingredients and then printing it into a mold and then carrying out the drying process. The test was carried out based on a temperature difference analysis. The most optimum particle board reinforcement composition to reduce heat is 100% pineapple leaf fiber waste : 0% HVS paper waste.
MECHANICAL PROPERTIES OF SUGAR PALM (ARENGA PINNATA) ROPES AND NETS FOR AGRICULTURAL PURPOSES Mohamad Jahja; Kasim Dihuma; Dewa Gede Eka Setiawan; Tsutomu Yamaguchi; Andi Patiewere Metaragakusuma; Masayuki Sakakibara
Jambura Physics Journal Vol 5, No 1 (2023): April 2023
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jpj.v5i1.19433

Abstract

Sample of Arenga Pinnata (AP) fibres, ropes and nets were prepared from AP ropes using traditional tools. The ropes and nets were used as agricultural material such as vertical farming of vines (passion fruit, grape, bitter gourd, and melon) in Gorontalo and Japan. The combination of nets and vines acts as green curtain (GC) which. Could mitigate the thermal energy in outdoor as well as indoor buildings. and tested with the deformation rate of up to the point of rupture. To avoid the failure of ropes and nets on supporting the weight of the vines, the Universal Testing Machine Model WDW-50 were used to determine the ultimate tensile forces. While the physical size of the AP fibres, ropes and nets also being measured to confirm the uniformity of the individual ropes and nets

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