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Kappa Journal
Published by Universitas Hamzanwadi
ISSN : -     EISSN : 25492950     DOI : -
Core Subject : Science, Education,
Astronomy Physics Other
Kappa Journal (e-ISSN 2549-2950) mempublikasikan artikel hasil-hasil penelitian fisika, inovasi pembelajaran fisika, dan pemikiran-pemikiran kritis tentang fisika maupun pendidikan fisika. Kappa Journal diterbitkan oleh Universitas Hamzanwadi dua kali setahun yakni setiap bulan Juni dan Desember.
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Articles 26 Documents
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Search results for , issue "Vol 8 No 1 (2024): April" : 26 Documents clear
Pengembangan Komik Fisika Pada Materi Hukum Newton Meda, Helmiana Dua; Donuata, Pujianti Bejahida; Jufriansah, Adi
Kappa Journal Vol 8 No 1 (2024): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v8i1.21256

Abstract

This study aims to find out the feasibility of developing physics comic media on Newton's Law material so that it can be applied to the learning process. The research was conducted at St. Gabriel Maumere Catholic High School Class X MIA which totaled 22 students. According to the findings of the observations, it appears that learning in class still uses teaching materials in the form of books and various facilities such as projectors, LCDs, so most students feel less attractive in the interest in learning. This is due to the fact that educators are less developing learning media, this is a limitation of knowledge. In order to generate a certain product and evaluate its efficacy, a research approach known as research and development (R & D) or research and knowledge (if translated into Indonesian) is employed. Based on the findings of the data analysis, the product was validated by two experts, namely media and material specialists, and received scores of 80% and 91.1% in the 'Very Good' category. Furthermore, the product was tested to 22 students by obtaining 87% results included under the "Very Good" heading. Thus, it can be said that creating Fiska comics based on information about Newton's Law is thought to be doable and applicable in the upcoming educational process.
Metode Double-Difference Untuk Merelokasi Hiposenter Gempabumi Susulan Seririt Singaraja Baskoro, Winardi Tjahyo; Kasmawan, I Gde Antha; Putra, I Ketut; Ratini, Ni Nyoman; Sismanto
Kappa Journal Vol 8 No 1 (2024): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v8i1.24434

Abstract

A method that does not require a main earthquake (master event) that can be used simultaneously to relocate a very large number of earthquakes with wide hypocenter separation is called the double-difference method. A method used to relocate the aftershocks in Seririt Singaraja on November 14 2019 with coordinate positions 113.478 – 115.181 East Longitude and 8.357 – 7.894 South Latitude. The earthquake data used in this research was accumulated from 85 BMKG seismic stations. Data analysis uses cross-correlation time differences which can increase the accuracy of travel time between the receiving station and the earthquake, thereby reducing errors in calculations. The double difference method used to relocate the earthquake in the Seririt Singaraja area showed that there was a shift in the location of the earthquake hypocenter before and after it was relocated. Horizontally and vertically, the distribution of earthquake hypocenters before and after being relocated occurs when there is a collection of location shifts. The results of this research were able to relocate 152 aftershocks properly. The main earthquake after being relocated was at a depth of 17 km, while the distribution of aftershocks was at a depth of around 6-25 km, so that it can more accurately describe the position of the earthquake source and is able to show clearer and easier to interpret structural patterns.
Analisis Kemampuan TPACK (Technological Pedagogical Content Knowledge) Calon Guru Fisika dalam Mata Kuliah Micro Teaching Sukadi, Eti; Safitri, Dwi Fajar
Kappa Journal Vol 8 No 1 (2024): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v8i1.24570

Abstract

Penelitian ini bertujuan dari penelitian ini untuk mengetahui kemampuan Technological Pedagogical and Content Knowledge (TPaCK) mahasiswa pendidikan fisika sebagai calon guru bidang studi fisika dalam menyiapkan pembelajaran berupa perangkat pengajaran dalam perkuliahan microteaching. Metode penelitian yang digunakan dalam penelitian ini adalah deskriptif kuantitatif. Subjek dalam penelitian ini adalah mahasiswa prodi Pendidikan fisika IKIP PGRI Pontianak semester VI TA. 2022/2023, dan penelitian ini dilaksanakan selama 8 bulan. Instrumen penelitian menggunakan lembar observasi yang dikembangkan dari komponen Technological Pedagogical and content knowledge (TPaCK) menurut Santos dan Castro. Berdasarkan hasil penelitian dan analisis data dapat disimpulkan bahwa mahasiswa calon guru fisika pada mata kuliah microteaching dalam menyiapkan perangkat pembelajaran ditinjau dari Technological Pedagogical and content knowledge (TPaCK) termasuk dalam kategori cukup. Namun, pada komponen technology content knowledge masih rendah. Evaluasi untuk kedepannya diharapkan untuk melakukan perubahan dalam menerapkan strategi pengajaran dan fokus dalam penggunaan teknologi agar mahasiswa calon guru dapat menerapkan dalam penyusunan perangkat pembelajaran khususnya dalam mata kuliah microteaching.
Uji Instrumen Penguasaan Konsep Fisika Pada Pokok Bahasan Elastisitas Dan Hukum Hooke Yuliana, Yuliana; Zuhdi, Muhammad; Gunada, I Wayan; Taufik, Muhammad
Kappa Journal Vol 8 No 1 (2024): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v8i1.24874

Abstract

Penelitian ini bertujuan untuk mengetahui hasil uji instrumen penguasaan konsep fisika pada pokok bahasan elastisitas dan hukum Hooke. Metode penelitian yang digunakan adalah metode deskriptif. Populasi pada penelitian ini adalah instrumen penilaian penguasaan konsep fisika kelas XII MIPA di SMAN 1 Lembar. Adapun pengambilan sampel menggunakan teknik purpossive sampling dan dari empat kelas diperoleh peserta didik kelas XII MIPA 1. Teknik pengumpulan data menggunakan tes pilihan ganda sebanyak 30 soal untuk mengukur penguasaan konsep fisika peserta didik. Uji instrumen yang dilaksanakan yaitu uji validitas, uji reliabilitas, uji daya beda, dan uji tingkat kesurakaran. Berdasarkan hasil uji instrumen penguasaan konsep di SMAN 1 Lembar, diketahui bahwa untuk uji validitas dengan taraf signifikansi 5% diperoleh sebanyak 22 soal dalam kategori valid dan 8 soal dikategori tidak valid, untuk uji reliabilitas dengan taraf signifikansi 5% diperoleh 30 soal dalam kategori reliabel, untuk uji daya beda diperoleh 19 soal dalam kategori diterima, 4 soal dalam kategori diperbaiki dan 7 soal dalam kategori ditolak, untuk uji tingkat kesukaran diperoleh 14 soal dikategori mudah, 15 soal dikategori sedang dan 1 soal dikategori sukar.
The Effect of Time Repetition Variation on Brain MRI Imaging Quality On T2 Weighted Sequences Arsana Karang, Ade Rama Ditya; Sutapa, Gusti Ngurah; Dharma Negara, I Putu Surya
Kappa Journal Vol 8 No 1 (2024): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v8i1.24885

Abstract

Magnetic Resonance Imaging (MRI) is an imaging technique used to produce images of parts of the human body by utilizing a strong magnetic field. The examination that is often carried out is a brain examination. This research was conducted at Bali Mandara Hospital. To find out the condition of the brain, an MRI examination can be done. MRI can produce images known as sequences which produce T1 Weighted Image (T1WI), T2 Weighted Image (T2WI), resulting in visible images with different intensities. To obtain T2WI, the time echo (TE) and time repetition (TR) must be long to give the fat and water a chance to decay, so that the fat and water contrast can be visualized well. This research aims to determine the effect of TR variations on SNR values, and determine the best TR to produce good image values. To generate T2WI SNRs on brain MRI. This street vendor activity uses a Phillips 1.5 Tesla type MRI aircraft. Data collection was obtained from twenty patients with 3 variations of TR values starting from 3,500 ms, 5,500 ms and 7,500 ms by obtaining a total of 60 images. Evaluate tissue SNR values by measuring ROI directly on the MRI device. SNR value analysis was performed on cerebrospinal fluid (CSF) tissue, spinal cord. Sequentially the SNR values obtained were 174.24, 211.22 and 244.51 in the CSF tissue 78.53, 80.64 and 84.81 in the spinal cord tissue. This street vendor activity has shown the result that the longer the TR value is given, the SNR value will increase. This is because long TR values are able to evaluate networks in more slices and provide better noise signal values. The TR variation of 7,500 ms can produce the highest SNR value so that the resulting image is very good
Perancangan Alat Ukur Intensitas Cahaya menggunakan Sensor BH1750 Berbasis Mikrokontroler ATMega328P Bano, Tominikus Benyamin; Widagda, I Gusti Agung; Trisnawati, Ni Luh Putu; Wibawa, I Made Satriya; Putra, I Ketut; Sandi, I Nengah
Kappa Journal Vol 8 No 1 (2024): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v8i1.24917

Abstract

The design of a light intensity measuring instrument using the BH1750 sensor based on the ATMega328P microcontroller has been successfully created. The results of light intensity data are measured by using the BH1750 sensor which receives a data signal in the form of light intensity. In order to get results that are in accordance with the reference tool, the design of a light intensity measuring instrument by using the BH1750 sensor based on the ATmega328P microcontroller is carried out in the Electronics and Instrumentation Laboratory and Computing Laboratory, Physics Study Program, FMIPA, Udayana University, Jimbaran, Bali. Then the results of the design of tool and reference tool processed into graphical form and proven by employing a linear regression equation. The measurement results of light intensity are displayed on a 16x2 LCD. The test results of the design tool against the reference tool shown that the level of accuracy of the design tool is relatively high.
PENERAPAN PEMBELAJARAN IPA BERORIENTASI LITERASI SAINS BERBASIS STEM BAGI CALON GURU SD/MI Purbaningrum, Dwi; Ganjarjati, Nur Innayah; Darmawan, Muhammad Iman
Kappa Journal Vol 8 No 1 (2024): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v8i1.25048

Abstract

Penelitian ini merupakan penelitian deskriptif kualitatif. Penelitian ini bertujuan untuk mendeskripsikan penerapan pembelajaran IPA berorientasi literasi sains berbasis STEM bagi calon guru SD/MI. Indikator literasi saintifik yang digunakan menurut PISA dikelompokkan  menjadi 3  yaitu: menjelaskan  fenomena  secara  ilmiah,  merancang  dan mengevaluasi  penyelidikan  ilmiah,  serta  menafsirkan data dan bukti secara ilmiah.  STEM (Science, Technology, Engineering, and Mathematics) adalah sebuah pendekatan pembelajaran yang mengintegrasikan empat bidang ilmu tersebut dalam satu program. Berdasarkan hasil analisis penerapan pembelajaran IPA berorientasi literasi Sains berbasis STEM bagi calon guru SD/MI menunjukkan bahwa: pada aspek menjelaskan fenomena secara ilmiah sebesar 88,0 %. Aspek kedua yaitu merancang dan mengevaluasi penyelidikan ilmiah sebesar 86,7%. Pada aspek ketiga yaitu menafsirkan data dan bukti secara ilmiah sebesar 84,3 %. Secara hasil rata-rata didapatkan 86,3% dengan kategori Sangat Baik. Dengan demikian penerapan pembelajaran IPA berorientasi literasi Sains berbasis STEM dapat terlaksana dan mencapai aspek-aspek literasi sains dan komponen STEM dengan Sangat Baik
IDENTIFIKASI STRUKTUR BAWAH PERMUKAAN BERDASARKAN DATA ANOMALI GRAVITASI DI PULAU LOMBOK Threza, Imelda; Baskoro, Winardi Tjahyo; Alit Pramarta, Ida Bagus; Sukarasa, I Ketut; Suardana, Putu; Supardi, I Wayan
Kappa Journal Vol 8 No 1 (2024): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v8i1.25139

Abstract

Abstract: Research on the identification of subsurface structures based on gravity anomaly data on Lombok Island. This research aims to create a map and determine the value of the complete Bouguer anomaly, regional anomaly, residual anomaly, subsurface density value and create a 2-D model of the subsurface structure. The data used is secondary data, namely satellite gravity anomaly data obtained from the topex website. Data processing in this research uses the gravity method. In this method, gravity correction will be carried out, making a complete bouguer anomaly map, conducting spectrum analysis, separating regional and residual anomalies using butterworth filters and forward modeling to obtain a 2-D model of the subsurface structure. The results of the complete bouger anomaly map are 10.2 to 297.1 mGal, regional anomalies 18.0 to 271.1 mGal and residual anomalies between (-52.9 to 32.4) mGal. The results of forward modeling show that the subsurface geological structure on Lombok Island has a density range between 1 to 2.9 g/cm3, so that from the range of rock density values it can be estimated that the subsurface structure of Lombok Island is divided into East Lombok consisting of Soil rocks (1 to 1.99 g/cm3), Lime Stone (2 to 2, 27 g/cm3), Andesite (2.4 to 2.63 g/cm3) and Basalt (2.71 to 2.99 g/cm3), for West Lombok consists of Lime Stone (2.08 to 2.6 g/cm3), Andesite (2, 68 to 2.77 g/cm3) and Basalt (2.85 to 2.99 g/cm3) and for Central Lombok consists of Andesite (2.41 to 2.72 g/cm3), Basalt (2.84 to 2.99 g/cm3).  
Pengembangan Media TESBOM (Teka-Teki Silang Blanded Of Matter) Berbasis Digital Web Untuk Meningkatkan Hasil Belajar Siswa Muatan IPAS Pada Kelas V SD Kusuma, Radhisya Adristi; Khamdun, Khamdun; Riswari, Lovika Ardana
Kappa Journal Vol 8 No 1 (2024): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v8i1.25315

Abstract

Abstract: This research carries out using digital web-based TESBOM (blended of matter crossword) media on human breathing material which aims to test the effectiveness of digital web-based TESBOM media in improving student learning outcomes for science content in class V of SD N 4 Kedungcino. The digital web-based TESBOM media developed is an educational game media that is integrated with digital web technology and also IPAS content material. The development method used in this research is the ADDIE R&D model development method. The instruments used were pretest questions and posttest questions given to class V students at SD N 4 Kedungcino. The results of the media expert validity test are in the very appropriate category with an average of 93.25%. The results of the material expert validity test are in the very appropriate category with an average of 87.5%. The normality test of the pretest results obtained a significance (sig) of 0.143 > 0.05, while the posttest results obtained a significance (sig) of 0.106 > 0.05 so it can be said that the data distribution was normally distributed. The results of the N-Gain test obtained an increase in the average score of 0.5932 in the moderate category and in the quite decent category. Based on the results of the average score on the N-Gain test in this research, it can be concluded that the development of digital web-based TESBOM media can be used as a learning medium to improve student learning outcomes. Keywords: TESBOM, Digital Web, Learning Outcomes, IPAS.
Efektivitas Jumlah Lubang Pada Tabung Pembakaran Terhadap Performa Kompor Biomassa Rahayu, Susi; Ridwansyah, Habib; Kurniawidi, Dian Wijaya; Handayana, I G N Yudi; Alaa`, Siti; Budianto, Arif
Kappa Journal Vol 8 No 1 (2024): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v8i1.25335

Abstract

Global energy requirements encourage innovations in developing environmentally friendly alternative energy sources by transforming biomass waste into biopellets. The use of biopellets as fuel was followed by the development of biomass stoves for households. Developing biomass stove technology design is essential, so this research aims to design a biomass stove with good performance for use as a household stove. Stove performance was identified by reviewing the biomass stove's fuel consumption and thermal efficiency relative to the number of combustion holes. The biomass stove fabrication results had been successfully created based on a stove design using galvanized plate material. The design focused on three layers of tubes, including the stove frame, the air supply control, and the combustion tube. The number of holes in the combustion tube affected fuel consumption and the thermal effectiveness of the stove. The lowest fuel consumption on a furnace with six combustion holes was 2,306 kg/hour. Meanwhile, the optimal thermal efficiency for burning 18 holes was 16.17%. However, this thermal efficiency value needs to meet the SNI 7926: 2013 standard. The location and number of combustion holes in the combustion tube could influence the performance of the biomass stove. Therefore, it is important to modify biomass stoves to fulfill SNI standards.

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