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All Journal ORBITA: Jurnal Pendidikan dan Ilmu Fisika Jurnal Inovasi Penelitian dan Pembelajaran Fisika
Rosdiana Afifah Rahman
UNIVERSITAS JEMBER
Education Physics Other

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ANALISIS KEMAMPUAN BERPIKIR KRITIS MAHASISWA PENDIDIKAN FISIKA SEMESTER 3 TENTANG PEMANFAATAN TEKNOLOGI SOLAR CELL TERHADAP LINGKUNGAN Rosdiana Afifah Rahman; Sudarti Sudarti
Jurnal Inovasi Penelitian dan Pembelajaran Fisika Vol 2, No 1 (2021): Volume 2 Number 1 Januari 2021
Publisher : Universitas Tanjungpura, Prodi Pendidikan Fisika

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1097.573 KB) | DOI: 10.26418/jippf.v2i1.44530

Abstract

This article aims to analyze students' understanding of the purpose of solar cell technology. Because the role of students is very important in developing one of the renewable energies that is solar cells. There are still many people who have not seen other benefits from the sun, as well as ways to use solar energy for other processes, such as the use of solar cells in households and so on. Most of humans have not seen other ways and benefits of solar energy. So that to socialize the use of solar cell technology, students need to understand how important solar energy is as a renewable energy and how to use it. The method used in this study used quantitative descriptive, with the sample of 2019 class of physics education students.
PENGARUH PAPARAN MEDAN MAGNET EXTREMELY LOW FREQUENCY (ELF) 500 μT TERHADAP DERAJAT KEASAMAN (Ph), MASSA JENIS, DAN KUALITAS FISIK JAMBU AIR Rosdiana Afifah Rahman; Sudarti Sudarti
Jurnal Inovasi Penelitian dan Pembelajaran Fisika Vol 2, No 2 (2021): Volume 2 Number 2 Agustus 2021
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (200.877 KB) | DOI: 10.26418/jippf.v2i2.47149

Abstract

One of the plants that can thrive in Indonesia is guava. Indonesian people are familiar with water guava, and the fruit is often consumed by the public. However, water guava will rot quickly if not stored properly. Therefore, we need a method to preserve water guava without reducing the content contained in it. This article aims to analyze the effect of exposure to the ELF magnetic field on pH, density, and physical quality of water guava. The method used in this research is a laboratory experiment with a completely randomized design. This study used a magnetic field exposure of 500 T. The duration of exposure is divided into three, namely 60 minutes, 90 minutes, and 120 minutes. This study was conducted for 4 days with the variables measured in this study namely pH, density, and physical quality of water guava. Measurement of each variable was carried out every day for 4 days.
PENGARUH PAPARAN MEDAN MAGNET EXTREMELY LOW FREQUENCY (ELF) TERHADAP MASSA JENIS TOMAT RANTI Rosdiana Afifah Rahman; Sudarti Sudarti; Albertus Djoko Lesmono
ORBITA: Jurnal Kajian, Inovasi dan Aplikasi Pendidikan Fisika Vol 8, No 2 (2022): November
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (226.99 KB) | DOI: 10.31764/orbita.v8i2.11428

Abstract

ABSTRAKTomat ranti merupakan jenis tomat yang memiliki kandungan likopen serta vitamin c yang lebih tinggi dibanding dengan jenis tomat yang lain. Tomat ranti merupakan salah satu jenis buah klimaterik dengan umur simpan ± 3-7 hari. Medanmagnet ELF merupakan salah satu jenis dari gelombang elektromagnetik yang bersifat Non-Ionizing dan telah dinyatakan dalam beberapa penelitian dalam bidang pangan, pertanian dan lain sebagainya. Penelitian ini bertujuan untuk mengetahui pengaruh paparan medan magnet ELF dengan intensitas 600 µT, 1000 µT, dan 1500 µT terhadap perubahan nilai massa jenis tomat ranti pada kelompok kontrol dan kelompok eksperimen. Desain penelitian yang digunakan yaitu Rancangan Acak Lengkap (RAL) dengan sampel yang digunakan yaitu tomat ranti. Sampel dibagi menjadi 5 kelompok kontrol dan 45 kelompok eksperimen. Pengukuran nilai massa jenis dilakukan pad ahari ke-2, ke-4, ke-6, dan ke-8 setelah pemaparan. Hasil dari penelitian menunujukkan adanya perbedaan signifikan antara kelompok kontrol dengan kelompok eksperimen. Intensitas dan waktu pemaparan yang paling efektif dalam penelitian ini yaitu intensitas 600 dengan lama waktu 100 menit. Kata kunci: tomat ranti; massa jenis; medan magnet; elf; pembusukan. ABSTRACTRanti tomato is a type of tomato that contains lycopene and vitamin C which is higher than other types of tomatoes. Ranti tomato is a type of climacteric fruit with a shelf life of ± 3-7 days. The ELF magnetic field is one type of electromagnetic wave that is Non-Ionizing and has been stated in several studies in the fields of food, agriculture and so on. This study aims to determine the effect of exposure to the ELF magnetic field with an intensity of 600 µT, 1000 µT, and 1500 µT on changes in the density value of ranti tomatoes in the control group and the experimental group. The research design used is Completely Randomized Design (CRD) with the sample used is tomato ranti. The sample was divided into 5 control groups and 45 experimental groups. Density values were measured on the 2nd, 4th, 6th, and 8th days after exposure. The results of the study showed a significant difference between the control group and the experimental group. The most effective intensity and exposure time in this study was the intensity of 600 with a duration of 100 minutes. Keywords: ranti tomato; density; magnetic field; elf; decay.
Co-Authors Albertus Djoko Lesmono Sudarti . Sudarti Sudarti