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All Journal Spektra: Jurnal Fisika dan Aplikasinya PENDIPA Journal of Science Education Jurnal Kumparan Fisika Jurnal Pengabdian Al-Ikhlas Jurnal Multidisiplin Madani (MUDIMA)
Muchammad Farid
Universitas Bengkulu
Aerospace Engineering Chemistry Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Physics Social Sciences

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Penentuan Nilai Emisivitas Warna Menggunakan Penerangan Pada Miniatur Ruang Berbentuk Kubus Dan Proses Pembelajaran Fisika Kelas X SMK Negeri 2 Bengkulu Tengah Cariti Dassa Urra; Afrizal Mayub; M Farid
PendIPA Journal of Science Education Vol 1, No 1 (2017): october
Publisher : University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.1.1.32-40

Abstract

ABSTRACT            This study aims to: know the value of emissivity of purple, green, blue, red, light green, light blue, orange, yellow, pink, and improvement of learning outcomes by using PBL model on the concept of heat transfer class X TKR SMKN 2 Bengkulu Tengah, and explain the difference of students' cognitive learning outcomes in high, medium and low group. This study deals with the measurement of color emissivity and its implementation in physics learning on the topic of heat transfer. The population in this study is all students of class X SMK Negeri 2 Bengkulu Tengah academic year 2016/2017. The sample is taken by purposive sampling technique, that is class X.TKR (Light Vehicle Technique) which is taught by Problem Based Learning (PBL) model. This research is a quasi experimental research with One Group pretest-posttest design. The results showed that the purple comet value was 0.91, the green emissivity (going green) was 0.84, the blue emissivity (true blue) was 0.77, the red color emissivity (talk of the town) 0.66, light green color emissivity (apple martini) of 0.61, blue sky emissivity of 0.54, orange torch emission of 0,50, emissivity of light brown (pastry puff) of 0.46, yellow color emission (absolute yellow) of 0.37, and pink emissivity (crystal pink) of 0.24; There is an increase in learning outcomes on the concept of high, medium and low group high caloric transfer with N-gain values of 0.76 (high), 0.64 (medium), and 0.46 (moderate); There was a difference of students' cognitive learning outcomes in the high, medium and low groups shown by Fcount> Ftable (4.40> 3.35) at the 5% significance level.
Analisis Shear Strain dan Kerusakan Bangunan Akibat Gempa Bumi di Kecamatan Gading Cempaka dan Ratu Agung Kota Bengkulu Kurnia Lestari; Muchammad Farid; Afrizal Mayub
PendIPA Journal of Science Education Vol 2, No 3 (2018): October
Publisher : University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (918.153 KB) | DOI: 10.33369/pendipa.2.3.222-226

Abstract

ABSTRACT  [The Analysis of Shear Strain and Building Damage due to Earthquake at Gading Cempaka and Ratu Agung District in Bengkulu City]. The aims of this research are to: (1) determine and mapping the distribution of shear strain values, (2) correlate between shear strains with building damage Gading Cempaka and Ratu Agung caused by earthwuake at sub district in Bengkulu city. Microtremor data were taken at 108 observation points then analyzed using HVSR method to obtain amplification factor and dominant frequency values..The result showed that shear strain value of Gading Cempaka and Ratu Agung sub district in Bengkulu city are relatively heterogeneous although in the same geological formation type. The earthquake in 2007 is estimated to be 3.38% potential to deform the land surface in the form of fractures and settlements and 96, 62% potentially experience shocks due to waves and vibrations due to earthquake. The earthquake of 2000 estimated that almost the entire area of Gading Cempaka and Ratu Agung has the potential to experience shocks due to waves and vibrations due to earthquake that is equal to 97% while potentially liquefaction (ambles) occurs by 3%. The correlation between shear strain with the damage of buildings due to earthquake shows the relationship is directly proportional to the function y = 15267x + 26.219 with the coefficient of resgression of    = 0.671. Keywords:  Earthquake;  HVSR method;  microtremor;  shear strain.
Pembelajaran Fisika Konsep Kalor Dengan Menggunakan Media Pirolisis Sampah Plastik Untuk Meningkatkan Ketrampilan Berpikir Kritis Siswa Di SMAN 3 Bengkulu Tengah Umi kalsum; Agus Sundaryono; M Farid
PendIPA Journal of Science Education Vol 1, No 1 (2017): october
Publisher : University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (445.501 KB) | DOI: 10.33369/pendipa.1.1.41-48

Abstract

The objectives of this research are (1) to know the value of density, viscosity, fog point, oil absorption caloric, odor, color and fire sensitivity, in pyrolysis of plastic garbage from condenser one and two adsorbed using zeolite and activated charcoal, (2) the content contained in pyrolysis plastic waste oil adsorbed using active zeolite and charcoal, (3) knowing differences in critical thinking skills among students who learn to use guided inquiry learning model with students who study conventionally on physics learning. Convert plastic waste into fuel oil using a pyrolysis process with two water condensers, then plastic waste pyrolysis oil adsorbed using activated zeolite and charcoal. The results showed that the density value of the adsorbed oil for one condenser was 772 Kg / m3 and the condenser was 770 Kg / m3, the viscosity value of the adsorbed oil from the condenser one and two had the same value of 0.49 m2 / s, the fog point value oil that has been adsorbed on the condenser yield one and two is the same value that is -18oC, the calorific value of oil absorption, color, odor, and fire sensitivity shows the more adsorbent and the longer the adsorption process, the oil absorbs the smaller, , the odor does not sting, and the fire sensitivity gets smaller. GC-MS test results obtained the most compounds contained in pyrolysis oil plastic waste that has been adsorbed that is 1,3,5-trimethylcyclohexene. The implementation of physics learning on the concept of heat shows that there are differences in critical thinking skills in control and experiment class. Based on different test on posttest result the first material got 0,022 and postest second material equal to 0,047, the value is smaller than level of significance 0,05 so Ha accepted.
Hubungan antara Kedalaman Permukaan Air Tanah dengan Salinitas di Pesisir Pantai Kungkai Baru serta Penggunaan Model Discovery Learning Sutijo Joko Sudiro; Muchammad Farid; Eko Swistoro
PendIPA Journal of Science Education Vol 2, No 3 (2018): October
Publisher : University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (348.795 KB) | DOI: 10.33369/pendipa.2.3.178-182

Abstract

ABSTRACT [Relationship between Groundwater Surface Depth with Salinity at the Coast of New Kungkai Beach and its Implementation on Discovery Learning Model]. The aims of this study were 1) to describe the relationship between groundwater surface depth with salinity in the coastal areas of new kungkai beach of Seluma, and 2) to determine the improvement of learning outcomes (cognitive) of high ability students, moderate and low by using discovery learning model on the concept of static fluid in class X computer and network engineering at SMK Negeri 3 Seluma. This research was a quasi experimental research with one groups pretest-posttest design. The results showed: 1) The relationship between depth with salinity has a value of 0.6478 with a significance level of 0.001 (<0.05); 2) Learning with discovery learning model can improve student learning outcomes on cognitive aspects (knowledge). Increased cognitive results can be seen from the average value of the initial test, the final test and the average value of gain in the class x Tkj is high-ability groups are at high criteria with a value of 0.75 gain in the group is in the criteria medium with the value of gain 0,52 and in the low group were in moderate criteria with a gain value of 0.44. There is a difference in learning outcomes between the high, medium and low groups. The difference is shown by Fcount > Ftable (4.04 > 3.35) with a significance level of 5%. Keywords: Groundwater surface depth; salinity; discovery learning model; SMKN 3 Seluma.
Penggunaan Data Mikrotremor Dan Vs30 Untuk Mengetahui Hubungan Ketebalan Sedimen Terhadap Produktivitas Kelapa Sawit Dan Implementasinya Dalam Pembelajaran Fisika Riska Marwanti; M.Lutfi Firdaus; M Farid
PendIPA Journal of Science Education Vol 1, No 1 (2017): october
Publisher : University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (546.429 KB) | DOI: 10.33369/pendipa.1.1.25-31

Abstract

The aims of this study were to determine the relationship of sediment thickness to palm oil productivity and to know the improvement of student learning outcomes after learning using LKPD based on service learning. This study was conducted using HVSR (Horizontal to Vertical Spectral Ratio) method. Data were collected as 10 primary data points, while secondary data on palm oil productivity was obtained from PT Bio Nusantara Teknologi. Data obtained from field measurements are numerical data of natural wave recording or seismic signal at each measurement point. The data is processed using Geopsy software so it can be known the price of the dominant frequency (fo), while the shear wave velocity (Vs30) is obtained through USGS data. The result of this research is there is intermediate relationship between sediment thickness to productivity of palm oil with product moment correlation value equal to 0,6392, so that thicker layer of sediment hence higher productivity. The results of this study further used as a source of information contained in the form of LKPD-based service learning to become a learning medium taught by Problem Based Learning (PBL) model on students of class XI SMK N 1 Padang Jaya to know the improvement of students' cognitive learning outcomes in physics learning. The result of research implementation influence of sediment thickness to productivity of palm oil in classroom study showed cognitive learning result of learners experience improvement of cognitive learning result with average value of N-gain of 0,52 (medium criterion).
Penggunaan Wajan Sebagai Cermin Cekung Untuk Mengukur Efisiensi Cahaya Matahari Revika Julia Pratiwi; Afrizal Mayub; M. Farid; Nirwana
Jurnal Multidisiplin Madani Vol. 1 No. 3 (2021): Desember 2021
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (528.852 KB) | DOI: 10.55927/mudima.v1i3.62

Abstract

Penelitian ini bertujuan untuk (1) memanfaatkan wajan sebagai cermin cekung untuk mengumpulkan cahaya matahari (2) menghitung efisiensi energi cahaya matahari pada kompor surya yang menggunakan cermin cekung, (3) mengetahui waktu yang digunakan untuk memanaskan ½ liter air sampai pada suhu tertentu dengan memvariasikan diameter cermin cekung dan Kompor surya adalah perangkat masak yang menggunakan sinar matahari sebagai sumber energi. Kompor surya yang dibuat sebanyak 4 kompor dengan diameter yang berbeda-beda yaitu 26 cm, 36 cm, 38 cm dan 40 cm. Dari hasil penelitian, diperoleh suhu maksimum sebesar 60 0C, efisiensi maksimum kompor surya adalah 9 % dan efisiensi minimum kompor surya adalah 6%. Besarnya efisiensi energi cahaya matahari pada kompor surya yang menggunakan cermin cekung dengan diameter yang bervariasi juga berbeda tidak tergantung dengan besar kecilnya diameter kompor.
KONDISI GEOLOGI LOKAL KOTA BENGKULU BERDASARKAN GROUND SHEAR STRAIN (GSS) Nanang Sugianto; M. Farid; Suhendra Suhendra
Spektra: Jurnal Fisika dan Aplikasinya Vol 2 No 1 (2017): SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 2 Nomor 1, April 2017
Publisher : Program Studi Fisika Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (583.615 KB) | DOI: 10.21009/SPEKTRA.021.05

Abstract

Abstrak Kondisi geologi lokal merupakan salah satu parameter yang mempengaruhi tingkat kerusakan akibat gempabumi. Kondisi geologi kota Bengkulu telah digambarkan oleh nilai Ground Shear Strain (GSS) yang diperoleh dari hasil analisis enam puluh tujuh data mikrotremor yang dipasang di setiap jenis formasi geologi. Berdasarkan hasil analisis, nilai GSS kota Bengkulu relatif heterogen meskipun pada jenis formasi geologi yang sama. GSS kota Bengkulu diperoleh dan dibagi dalam tiga kelompok, diantarany 10-6 (25.37%), 10-5 (40.30%) dan 10-4 (32.84%). Variasi ini mengindikasikan adanya perbedaan ketebalan lapisan sedimen dan tingkat kekerasan batuan untuk setiap titik amat. Wilayah yang memiliki nilai GSS tinggi memiliki kesesuaian dengan kondisi lapangan yang sebenarya (berdasarkan hasil ground survey merupakan daerah bekas rawa dengan mofologi landai) dan kesesuaian dengan sejarah kerusakan akibat gempabumi besar di kota Bengkulu. Berdasarkan peta sebaran nilai GSS, potensi deformasi paling tinggi terindentfikasi di bagian barat Kota Bengkulu yaitu wilayah dengan formasi geologi undak alluvium, alluvium dan sebagian formasi andesit, sedangkan formasi geologi lainya relatif lebih aman. Dinamika lapisan tanah permukaan kota Bengkulu umumnya bersifat elastis dan berpotensi mengalami rekahan dansettlement. Struktur geologi yang relatif lunak dan lapisan sedimen yang tipis memungkinkan terjadinya penguatan efek gelombang dan resonansi tinggi ketika gempabumi terjadi. Kata-kata kunci: Kondisi geologi lokal kota Bengkulu, Ground Shear Strain, deformasi. Abstract Local geology condition has become one of the most parameters which affected damage level of earthquake. Geology condition of Bengkulu city has been described by Ground Shear Strain (GSS) value that obtained by sixty seven microtremor data analysis result what instaled on each geology formation types. According analysis result, GSS value of Bengkulu city was heterogeneous relatively in spite of similar geology formation type. GSS in Bengkulu City has obtained and be divided to three category, including 10-6 (25.37%), 10-5 (40.30%) and 10-4 (32.84%). These variations indicate differences in the thickness of sediment layer and rock solidity level of sites. The Areas of high value of GSS have compatibility with actual field conditions (Based on ground survey, it was swamp area and morphology ramps relatively) and have compatibility with damaged earthquake effect history of Bengkulu city. According map of GSS value distributions, high potency of deformation was indicated in western of Bengkulu city area, it was alluvium terraces formation, alluvium formation and partial of andesite formation, while others were relatively safer. The dynamic characteristic of surface soil layer on Bengkulu city was elastic and potential crack and settlement.The soft geology structure relatively and thin of sediments layer would affected amplification of wave and high resonance when earthquake occur. Keywords: Local geology condition of Bengkulu city, ground shear strain, deformation of soil
PENERAPAN TEKNOLOGI GPS UNTUK PELACAKAN POSISI HEWAN TERNAK (SAPI BALI) BERBASIS SMARTPHONE DI DESA PULAU PANGGUNG Budi Harlianto; M. Farid; Suwarsono Suwarsono
JURNAL PENGABDIAN AL-IKHLAS UNIVERSITAS ISLAM KALIMANTAN MUHAMMAD ARSYAD AL BANJARY Vol 6, No 3 (2021): AL-IKHLAS JURNAL PENGABDIAN
Publisher : Universitas Islam kalimantan MAB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (339.845 KB) | DOI: 10.31602/jpaiuniska.v6i3.4513

Abstract

Pengabdian kepada masyarakat penerapan sistem aplikasi teknologi GPS untuk pelacakanposisi hewan ternak (Sapi Bali) berbasis smartphone telah dilakukan di Desa Pulau PanggungKecamatan Luas Kabupaten Kaur Provinsi Bengkulu. Kegiatan pengabdian kepada masyarakatini diawali dengan pemberian penjelasan tentang sistem kerja GPS dan kegunaannya,memberikan pelatihan pengoperasian sistem pelacakan sapi menggunakan smartphone,pemasangan GPS pada Sapi dan pengujian selama 2 jam, serta melakukan validasi keakuratanGPS yang telah dipasang pada Sapi. Setelah diamati selama 2 jam tidak ada reaksi sapi yangmenunjukkan ketidak nyamanan setelah dipasangi GPS, kemudian sapi tersebut dilepaskanuntuk beraktivitas seperti biasanya. Proses pelacakan posisi sapi dapat dilakukan dengan tigacara, pertama menggunakan aplikasi TRSTAR yang di download melalui playstore; keduamenggunakan pengiriman pesan (SMS); ketiga menggunakan menu panggil (call). Setelahproses pemasangan GPS dan sapi juga sudah beraktivitas seperti biasa, dilakukan pelacakanposisi baik melaui aplikasi, maupun melalui menu SMS dan call. Setelah mendapatkaninformasi posisi sapi kemudian lakukan penelusuran sesuai dengan rute sesuai dengan tampilanmaps pada smartphone pengguna/pemilik sapi (user). Hasil penelusuran menujukan posisiyang tepat antara yang tertera di maps dengan posisi sapi yang sebenarnya sehingga sangatmembantu khalayak sasaran dalam mengetahui posisi sapi saat dicari untuk dikandangkan padasore harinya.
ANALISIS ZONA RAWAN GEMPA BUMI DI KABUPATEN BENGKULU SELATAN BERDASARKAN PERCEPATAN TANAH PUNCAK MENGGUNAKAN FORMULA KANAI Giltro Kencoro; M Farid; Arif Ismul Hadi; Darmawan Ikhlas Fadli; Agung Sedayu
Jurnal Kumparan Fisika Vol. 6 No. 2: Agustus 2023
Publisher : Unib Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jkf.6.2.75-82

Abstract

ABSTRAK   Provinsi Bengkulu terletak di antara Sumatra Fault Zone  dan Mentawai Fault Zone, yang mana merupakan sistem patahan paling berbahaya di Pulau Sumatera, Indonesia. Selain itu, gempa bumi Bengkulu tahun 2000 dengan magnitudo sebesar Mw 7,9 menyebabkan banyak korban jiwa dan harta benda di sekitar wilayah studi, dan banyak gempa lain yang merusak yang terjadi setelah gempa ini. Penentuan zona rawan gempa Kabupaten Bengkulu Selatan penting dilakukan untuk mengurangi kerusakan akibat gempa. Oleh karena itu, perekaman data mikrotremor short period dilakukan di 65 titik di daerah penelitian. Analisis data ambient noise dapat membantu mengidentifikasi local site-efect di Kabupaten Bengkulu Selatan dengan menggunakan metode Horizontal to Vertical Spectral Ratio (HVSR). Frekuensi fundamental alami berkisar antara 1.0 Hz hingga 9.3 ​​Hz, dan faktor amplifikasi berkisar antara 1.8 hingga 4.4. Nilai PGA diperoleh dari kejadian gempa bumi selama 100 tahun dan dihitung menggunakan persamaan Kanai. Hasil menunjukkan bahwa nilai PGA berkisar antara 0.18 g hingga 0.78 g. Zona rawan gempa di Kabupaten Bengkulu Selatan terbagi menjadi tiga zona, yaitu zona klasifikasi rendah (Kota Manna, Pasar Manna, Bunga mas, dan Seginim) , sedang (Pino Raya, Air Nipis, dan Ulu Manna), dan tinggi (Manna, Kedurang, dan Kedurang Ilir). Hasil penelitian ini dapat menjadi rekomendasi bagi pemangku kepentingan untuk mempertimbangkan langkah-langkah yang tepat untuk desain dan konstruksi tahan gempa di Kabupaten Bengkulu Selatan.   Kata  kunci: Gempa Bumi, HVSR, Kabupaten Bengkulu Selatan, PGA.   ABSTRACT   Bengkulu Province is between the Sumatra Fault Zone and the Mentawai Fault Zone, the most dangerous fault system in Sumatra, Indonesia. In addition, the 2000 Bengkulu earthquake with a magnitude of Mw 7.9 caused a significant loss of life and property in the study area, and many other destructive earthquakes occurred after this earthquake. Determining the earthquake-prone zone of South Bengkulu Regency is essential to reducing earthquake damage. Therefore, short-period microtremor data recording was conducted at 65 points in the study area. Analysis of ambient noise data can help identify local site effects in South Bengkulu Regency using the Horizontal to Vertical Spectral Ratio (HVSR) method. The natural fundamental frequency ranges from 1.0 Hz to 9.3 Hz, and the amplification factor ranges from 1.8 to 4.4. PGA values were obtained from a 100-year earthquake event and calculated using the Kanai equation. The results show that PGA values range from 0.18 g to 0.78 g. The earthquake-prone zones in South Bengkulu Regency are divided into three zones: low (Kota Manna, Pasar Manna, Bunga Mas, and Seginim), medium (Pino Raya, Air Nipis, and Ulu Manna), and high (Manna, Kedurang, and Kedurang Ilir). The results of this study can serve as recommendations for stakeholders to consider appropriate measures for earthquake-resistant design and construction in South Bengkulu Regency.   Keywords: Earthquake, HVSR, South Bengkulu Regency, PGA.
Co-Authors Afrizal Mayub Afrizal Mayub Afrizal Mayub Agung Sedayu Arif Ismul Hadi Budiyanto Budiyanto Cariti Dassa Urra Darmawan Ikhlas Fadli Deassy Siska Eko Swistoro Giltro Kencoro Harlianto, Budi Helmy Fitriawan Kurnia Lestari M. Lutfi Firdaus Nanang Sugianto Nandi Haerudin Nirwana Revika Julia Pratiwi Riska Marwanti Rustadi ., Rustadi Rustadi Rustadi Suhendra Suhendra Sutijo Joko Sudiro Suwarsono Suwarsono Umi kalsum