Jurnal Penelitian dan Pembelajaran Fisika Indonesia

Optimasi Pembuatan Briket Bioarang Dari Bahan Cangkang Kemiri Dan Sekam Padi Terhadap Nilai Kalor Dan Laju Pembakaran

Ahmad Alfi, Dwi Pangga, Sukainil Ahzan — Mon, 18 Dec 2023 00:00:00 +0000

Optimasi Pembuatan Briket Bioarang Dari Bahan Cangkang Kemiri Dan Sekam Padi Terhadap Nilai Kalor Dan Laju Pembakaran Penggunaan bahan bakar saat ini masih bersumber dari bahan bakar fosil yaitu bahan bakar minyak, batu bara dan gas. Briket adalah sumber energi yang berasal dari biomassa yang digunakan sebagai minyak bumi dan energi dari fosil. Briket yang paling umum digunakan adalah briket batu bara, briket arang, briket gambut, dan briket biomassa. Briket dapat dibuat dari bahan baku yang banyak kita temukan dalam kehidupan sehari-hari, lain batok kelapa, jamplung, eceng gondok, tongkol jagung, kulit kacang tanah, cangkang kemiri dan sekam padi.dan lain sebagainya. Pembuatan briket arang cangkang kemiri dan sekam padi dilakukan dengan proses karbonisasi, Pembuatan briket dengan persentase 90%-0%, 75%15%, 60%-30%, 45%-45%, 30%-60%, 15%-75%, 0%-90% (ACK dan ASP) perekat menggunakan tepung kanji (tepung tapioka) dengan menggunakan 10% perekat. Selanjutnya briket cangkang kemiri dan sekam padi diuji kadar air, densitas, nilai kalor dan laju pembakaran. Hasil pengujian briket cangkang kemiri dan sekam padi menghasilakan kadar air 5,12%, densitan 0,61 m³, nialai kalor tertinggi 5019 (kalor) dan laju pembakaran 0,33 gram/menit. Briket cangkang kemiri dan sekam padi dapat dijadikan bahan bakar alternatif karena memiliki nilai kalor yang cukup tinggi yaitu 5019 kal. Briket cangkang kemiri dan sekam padi pada dasarnya telah memenuhi Standar Nasional Indonesia SNI 01-6235-2000 yaitu nilai kalor minimal 5000 kal/g.

Kata Kunci : Briket, Cangkang Kemiri, Sekam Padi, perekat.

Development of E-Physics Magazine Media with the Assistance of Canva to Increase Students' Interest in Learning Physics: A Feasibility Test

Nuuri Haafida, Tsania Nur Diyana — Mon, 25 Dec 2023 00:00:00 +0000

Learning media is a tool that can assist teachers in conveying information to students so that the material can be conveyed thoroughly. Physics, which is seen as a difficult subject, requires alternative attractive media such as magazines in order to increase interest in reading and learning. The purpose of this research is to determine the feasibility of E-physics Magazine as an alternative physics learning media. The R&D research method is used with the 4D model which is carried out until the development stage. Feasibility test with 3 indicators was conducted by 1 lecturer and 6 active Physics Education students. The results of the feasibility test obtained are the material indicator getting an average result of 3.43, the media presentation indicator getting an average result of 3.08, and the language indicator getting an average of 3.46. So, it can be stated that E-physics Magazine is feasible to use as an alternative physics learning media.

Keywords: E-physics Magazine, Ohm's Law, reading interest, learning interest

Development of Integrated Physics Learning Videos for Tsunami Disaster Education to Increase Awareness and Preparedness of High School Students in Coastal Areas of Kulon Progo Regency

Bangkit Sudrajad, Rahayu Dwisiwi Sri Retnowati — Sun, 31 Dec 2023 00:00:00 +0000

Students' awareness and preparedness for tsunami disasters are two very important things to minimize the impact of disasters, especially for those who live in coastal areas. This study aims to produce video media for learning physics that is integrated with tsunami disaster education that is suitable for use in helping students understand physics material while increasing awareness and preparedness of students in the coastal areas of Kulon Progo Regency against the tsunami disaster. The method used in this study is research and development with a 4D model (Define, Design, Develop, and Disseminate). At the define stage, defining and determining the needs in making learning videos; then in the design stage the initial product design of video media and learning tools is carried out, the develop stage is carried out by validating video media by expert and practitioner validators as well as product trials on high school students in the coastal area of Kulon Progo district; and finally, the disseminate stage is the dissemination of the final product to the internet network and to the school where the research is being carried out. The resulting physics learning video media is integrated with tsunami disaster education which is suitable for use in physics learning and can help understand business and energy material while increasing students' awareness and preparedness for tsunami disasters.

Keywords: Learning Video; Tsunami; Disaster Education; Research and Development.

Developing Programming Competence Among Physics Education Students With Multi-Platform E-Learning During COVID-19

Mon, 25 Dec 2023 00:00:00 +0000

This research examines the effectiveness of a multi-platform e-learning approach in developing programming competence among physics education students at Mataram University's Faculty of Teaching and Education during the COVID-19 pandemic. The R2D2 model, an iterative and cyclical constructivist learning design process emphasizing creative learning experiences, serves as the methodological framework. Data collection employs questionnaires and tests. The research yields two primary findings: the development of a multi-platform e-learning media for a computer programming course by combining features from SIA, SPADA Unram, YouTube Channel, Google Drive, and WhatsApp groups; and student learning outcomes falling within the "satisfaction" category. Statistical analysis of class A and B data (means and standard deviations: 76.429/0.782 and 74.57/1.06, respectively) reveals insufficient evidence to conclude a significant difference in data variability between the two groups.

Keywords: Programming Competence, Multi-platform e-Learning, Physics Education Students, Covid-19.

Developing Learning Media for the Snakes and Ladders Game Newton's Law with the QuizWhizzer Application to Support Student Learning Motivation

Reza Aulya Dwi Saputri, Latifa Khoirunnisa, Tsania Nur Diyana — Sun, 31 Dec 2023 00:00:00 +0000

One important factor that can influence students' learning success is their learning motivation. This research aims to develop the Snakes and Ladders QuizWhizzer Game learning and test the feasibility and influence of using this media on students' learning motivation in the classroom. This research was carried out at Madrasah Tsanawiyah Sleman in November 2023. The method used was research and development (R&D) with the Four D (4D) development model taken from four development stages, namely Define, Design, Develop and Disseminate. The research sample was class VIII students, totaling 5 students. The results of the feasibility test by experts show that the media is suitable for use as a support for learning in the classroom because it can increase students' learning motivation as indicated by the results of the snakes and ladders game and direct interviews.

Keywords: Newton's Law, QuizWhizzer, Motivation.

Effect of Biobriquette Composition Made from Peanut Shells and Wood Powder on Calorific Value and Burning Rate

Nur Halimatus Sakdiah, Dwi Pangga, Sukainil Ahzan — Mon, 18 Dec 2023 00:00:00 +0000

This research aims to determine the effect of the composition of biobriquettes made from peanut shells and wood dust on the calorific value and combustion rate. This research is experimental research carried out in three stages, namely material preparation, making biobriquettes, and testing biobriquettes. The manufacturing process uses a simple briquette press. For the composition, Peanut Shell Charcoal (AKKT) + Wood Powder Charcoal (ASK) with an adhesive percentage of 10%, namely 0%+90%; 15%+75%; 30%+60%; 45%+45%; 60%+30%; 75%+15%; 90%+0%. The research results show that the calorific value ranges from 7387-1806 calories and the combustion rate ranges from 3.81-1.51 grams/minute. Based on the research results, it was found that the greater the AKKT composition, the higher the calorific value, while the resulting combustion rate was lower. So in the future, this research can be developed to make it better and better for making briquettes.

Keywords: biobriquettes, peanut shells, wood dust.

Effect of Gap Width on the Distance between Bright Patterns in Yellow

Mon, 25 Dec 2023 00:00:00 +0000

This research aims to determine the effect of gap width on the distance between bright patterns in the yellow color experiment. This research was carried out in a virtual laboratory, with the method used is a quantitative method with an experimental method, namely the method used to determine the effect of the independent variable on the dependent variable. Data collection was taken during the practicum using the PhET website in the Wave Interference – Slits section, with yellow light which has a wavelength of around 670-690 nm. The distance between two slits is 1500 nm and three different slit widths are used, namely 500 nm, 600 nm, and 700 nm. This research shows that the smaller the value of the gap width, the greater the value of the dark light pattern. Where, the wider the gap, the denser the light-dark pattern on the screen, and the smaller the gap width, the more sparse the light-dark pattern on the screen.

Keywords: Gap Width; PhET; Dark Light Pattern.