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Fakultas Ekonomi Universitas Muhammadiyah Malang
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Journal : Jurnal Pembelajaran Fisika

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ANALISIS INTENSITAS MEDAN MAGNET ELF (EXTREMELY LOW FREQUENCY) DI SEKITAR PERALATAN ELEKTRONIK DENGAN DAYA ≥ 1000 W Dhana Suhatin; Sudarti Sudarti; Trapsilo Prihandono
JURNAL PEMBELAJARAN FISIKA Vol 6 No 2 (2017)
Publisher : FKIP Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jpf.v6i2.5022

Abstract

Research on the analysis of the magnetic field intensity ELF (Extremely Low Frequency) is essentially an attempt to prevent the impact of disease risks posed by electromagnetic field radiation. Measuring instrument used to measure the magnetic field intensity EMF 827 is capable of measuring magnetic fields up to 2000 μT. The results of the intensity of exposure to magnetic fields measured by variations in distance of 20, 40, 60, 80 and 100 cm. The distance is selected because the distance is the distance that allows direct interaction with the magnetic field source. Issues to be studied are comparative intensity of the magnetic field around the electronic equipment with natural magnetic field and the magnetic field distribution around the electronic equipment with a power ≥ 1000 W. Results of comparative data are analyzed using One-Way ANOVA aided by SPSS 23 and presented in the profile / contour Surfer application assisted version 11. Keywords: Analysis of the magnetic field intensity ELF, EMF 827, One-Way Anova, profile / contour,Surfer application assisted
PENGARUH JENIS ATAP RUMAH TERHADAP PENURUNAN INTENSITAS MEDAN MAGNET DI BAWAH SUTT 150 KV Erlyn Yulia; sudarti sudarti; yushardi yushardi
JURNAL PEMBELAJARAN FISIKA Vol 6 No 1 (2017)
Publisher : FKIP Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The current study is based on the needs of human life that cannot be separated from the role of electricity. This is why the demand for electricity is getting increased, so it requires the construction of transmission channels, one of them is SUTT. Without realizing it, the channel emits magnetic field. The exposure to magnetic field generated by SUTT has extremely low frequency since the rate commonly used in Indonesia is 50 Hz. The purpose of the current study was to find out the distribution pattern of magnetic field radiation intensity below SUTT 150 kV and the influence of roof types to the decrease of ELF magnetic field intensity by SUTT 150 kV. The study design was field experiment using measuring devices of magnetic field with EMF-827. The results confirmed that the area under the phase wires had the greatest magnetic field intensity, that was almost 70 times bigger than that of the natural magnetic field intensity. Based on the data collection, the use of roof barrier did not effect to the decrease of the magnetic field intensity because the decrease had segnificantly occured at farther distance from the phase wires without using roof barriers. All the results of magnetic field intensity measurements was still below the limit allowed by WHO. The results of the current study can be used as new understanding for Indonesians, especially those who still live under the transmission line
PEMBELAJARAN GERAK LURUS MELALUI MODEL PEMBELAJARAN GUIDED DISCOVERY DISERTAI LKS DI KELAS X MA NEGERI 1 JEMBER Iqbal Bunga Pertiwi; Sudarti Sudarti; Pramudya Dwi Aristya Putra
JURNAL PEMBELAJARAN FISIKA Vol 6 No 3 (2017)
Publisher : FKIP Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jpf.v6i3.5328

Abstract

Guided discovery is a learning model that can expect students to identify knowledge and organize to final concept that is helped by LKS. This type of research is experimental research held in MA Negeri 1 Jember. The purpose of this study are to assess the influence of guided discovery learning for student’s cognitive learning outcomeon in straight motion learning,to assess the influence of guided discovery learning for student’s affective ability in straight motion learning, and to assess the influence of guided discovery learning to student’s science skill process in straight motion learning. Data collection technique use tests, observations, portofolios, interviews and documentation. Reseach testing by using analyse of Independent Sample t-test with SPSS IBM 23. The result show that guided discovery learning model significantly influence to student’s cognitive learning outcomeon in straight motion learning, that guided discovery learning model significantly influence student’s affective ability in straight motion learning, guided discovery learning model significantly influence to student’s science skill process in straight motion learning. Keyword: Guided Discovery, Cognitive Learning Outcomes, Affective Ability, Science Skill Process
ANALISIS INTENSITAS MEDAN MAGNET EXTREMELY LOW FREQUENCY (ELF) DI SEKITAR LAPTOP Shanti Dewi Agustina; Sri Handono Budi Prasutowo; Sudarti Sudarti
JURNAL PEMBELAJARAN FISIKA Vol 7 No 3 (2018): jurnal pembelajaran fisika
Publisher : FKIP Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jpf.v7i3.8602

Abstract

Research on the analysis of the magnetic field intensity Extremely Low Frequency (ELF) around laptop is important method to prevent the impact of disease risks caused by electromagnetic field radiation and evaluation of the safety level of environmental radiation by magnetic field ELF. The instrument used to measure the magnetic field intensity EMR tester GM 3120 is capable of measuring magnetic fields start from 0,01-19,99 μT, the results of the intensity of exposure to magnetic fields measured by different power in six position and two condition (On and Stanby menuju Off). The distance of measurement is 30 cm. the distance is selected because it is based on the normal people’s eye reading distance. Results of correlation data are analyzed using correlation pearson by IBM SPSS Statistic 23. The result showed that the processor power by type was directly proportional with the magnetic field intensity. If power higher so magnetic field will be bigger, and if power lower so magnetic field will be smaller. The magnetic field intensity value on the Stanby menuju Off condition was decreased. The results showed the highest intensity of different magnetic fields on 13 laptop.Keywoards: Magnetic fiels intensity of ELF, laptop, condition, position.
ANALISIS MEDAN MAGNET ELF TERHADAP NILAI pH IKAN DALAM PROSES PENGAWETAN IKAN BANDENG (Chanos chanos) Nurhasanah Nurhasanah; Sudarti Sudarti; Bambang Supriadi
JURNAL PEMBELAJARAN FISIKA Vol 7 No 2 (2018)
Publisher : FKIP Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jpf.v7i2.8004

Abstract

Abstract The ELF (Extremely Low Frequency) magnetic field is a spectrum of electromagneticwaves that located at frequencies less than 300 Hz and classified as non ionizingradiation. The ELF magnetic field is utilized in many case, one of them in the case offood, it is because the magnetic field can be applied to inactivate pathogenicmicroorganisms that cause food easily damaged or rotten. One of the factors in food thatcan be a reference related to microbial growth is pH (Hydrogen potential). This studyaims to determine the effect of ELF magnetic field exposure in the preservation of milkfishto the pH value. This study involved 21 samples of fresh milkfish, with the selection ofcontrol and experiment class. The experimental sample was exposed to an ELF magneticfield with an intensity of 730.56 μT and 877.37 μT with exposure time of 2 x 30 and 2 x45 minutes. pH measurement using pH meter. The result of this research is ELF magneticfield exposure affects the pH value of milkfish, which can inhibit the increment of pHvalue. The effective dose in inhibiting pH value is ELF magnetic field exposure with730.56 μT during 2 x 30 minutes. Keywords: Magnetic Field Extremely Low Frequency (ELF), Preservation, Milkfish
PENGARUH INDUKSI MEDAN MAGNET EXTREMLY LOW FREQUENCY (ELF) TERHADAP PERTUMBUHAN PIN HEAT JAMUR KUPING (Auricularia auricula) Mardika Wulansari; Rif'ati Dina Handayani; Sudarti sudarti
JURNAL PEMBELAJARAN FISIKA Vol 6 No 2 (2017)
Publisher : FKIP Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jpf.v6i2.5018

Abstract

In this modern era, the utilization of Extremely Low Frequency (ELF) magnetic field on variety of technology is increased. This increase occurs in variety of technology like food, health, industry, communications and agriculture. One of the food that can be cultivated through the agricultural sector is ear mushroom (Auricularia auricular). This studies are aims to investigate the influence of magnetic field on ear mushroom with intensities, 100 μT, 300 μT, and 600 μT with long exposure of 10 minutes, 30 minutes, 50 minutes, and 70 minutes and determining the effective dose for the growth of heat pin mushroom. This study was using completely randomized design with one primary factor and three replications. The result showed that the magnetic field produces results fairly significant increase in heat pin mushroom growth. Result in each of the experimental class increased by the rise of magnetic field intensities with lowest growth of heat pin getting by 600 μT for 70 minute, and the day of coming up heat pin on 22,33 Hsi and highest growth of heat pin getting by control class with the day of coming up heat pin on 24,44 Hsi. Key word : Ekstremly Low Frequency (ELF), Ear Mushroom, Heat Pin
ANALISIS JENIS KESALAHAN SISWA DALAM MENYELESAIKAN SOAL FISIKA MATERI LISTRIK STATIS DI MAN 6 JOMBANG Siti juwariyah; Trapsilo Prihandono; Sudarti Sudarti
JURNAL PEMBELAJARAN FISIKA Vol 7 No 3 (2018): jurnal pembelajaran fisika
Publisher : FKIP Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jpf.v7i3.8589

Abstract

AbstractThis research described students error and identify the cause of the students make mistakes in solving physics problems on static electrocity. Subjects in this study were 85 students of tweleveth grade on Islamic Senior High School 6 Jombang at 2017/2018 academic period. Interviews are conducted to eight students who became a representative of each error to determine the causes of students error. The results of students error identification on the subjects, among others; translation error amounted to 42,88% which indicates that percentage of translation error include medium error category, concept error amounted to 54,51% which indicates that percentage of concept error include medium error category, strategy error amounted to 15,88% which indicates that percentage of strategy error include low error category, and arithmetic error amounted to 1,76% which indicates that percentage of arithmetic error include very low error category. The cause of the error is identified, among others; students are not accustomed to write things that are known and asked questions, students do not know the purpose of the problem, students are accustomed to answer the question of physics without converting to SI units, students do not know the formula to be used, students are a hurry to do the work, and students are not careful when answered the questions.Key Words: arithmetic error, concept error, strategy error, translation error, static electrocity
ANALISIS PERUBAHAN SUHU RUANGAN TERHADAP KENYAMANAN TERMAL DI GEDUNG 3 FKIP UNIVERSITAS JEMBER Arlik Sarinda; Sudarti Sudarti; Subiki Subiki
JURNAL PEMBELAJARAN FISIKA Vol 6 No 3 (2017)
Publisher : FKIP Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jpf.v6i3.5329

Abstract

Most people are often doing indoor activities that they demand indoor comfort to carry out better, calmer, and comfortable activities. This study aims to assess the change of room temperature towards time in Building 3 FKIP Jember University. The research was conducted in lecture room number 35C 201, 35B 203, 35B 101, and 35E 105Building 3 FKIP Jember University. The method used was adescriptive method. Data was analyzed using One-Way Anova using SPSS 22. The results of this study indicate that the ambient temperature in the room changes by time, in general it appears that the room temperatureat 06.00 until 17.00 had a p-value (significance) <0.05, which means there is a significant temperature difference. However, there are several variables that had a p-value (significance) ≥ 0.05 that means no significant temperature difference. The average temperature measurement shows that the highest average is in room 35C 201 (28,445oC), while the lowest is in 35E 105 (27,8oC). The average temperature of the four rooms scored above optimal comfort scale, which is 28.1oC, or higher. The lowest average temperature is obtained at 06.00 WIB with 26oC and the highest average is at 13.00 that reached 29,525oC Keywords: Thermal Comfort, Effective Temperature, Lecture Room
PENGEMBANGAN MEDIA PEMBELAJARAN ULAR TANGGA BERBASIS ANDROID PADA POKOK BAHASAN GEJALA PEMANASAN GLOBAL UNTUK PEMBELAJARAN FISIKA DI SMA Indah Kurnia Nur Pratiwi Guterres; Sudarti Sudarti; Maryani m; Pramudya Dwi Aristya Putra
JURNAL PEMBELAJARAN FISIKA Vol 7 No 1 (2018)
Publisher : FKIP Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jpf.v7i1.7225

Abstract

AbstractThis research was a developmental research. The product of this research was inthe use of an android -based snake and ladders as a learning media on the topic of globalwarming phenomenon in senior high schools. This research were developed by Borg andGall method that modified into 5 step: (1) study literature, (2) planning, (3) designing (4)validation and revision, and (5) testing media and final revision.The results showed thatthe use of an android -based snake and ladders as a learning media can be valid,practically anf effective for use. This can be seen from the validation assesment criteriagets valid with a assesment scores reached 4,552. The practically assesment showed frompercentage 93,33 % with a criteria practice indicating that the media was good for useaccording with the teacher implementation planned learning and also showed frompercentage 80,64 % with a criteria practice indicating that study activity learning washigh. The effectiveness assesment showed from improvement student learning outcomeswith the average of N-gain score was 0,73 which was in the high category.Keywords: effectiveness, practicality, android based snake and ladder, validity
PENGEMBANGAN MODUL PEMBELAJARAN FISIKA BERBASIS KONTEKSTUAL DISERTAI CERGAM MATERI LISTRIK DINAMIS SMA KELAS X Desy Nurdiasari; Sudarti Sudarti
JURNAL PEMBELAJARAN FISIKA Vol 6 No 1 (2017)
Publisher : FKIP Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The purposes of this research are to know the validity of physics learning module contextual based with characterized stories and the efektiveness of the modul. This type of research is R and D which is development by Borg and Gall (1976). The result of the research was a physics learning modul contextual based with characterized stories which was worthy to use after being validized. The first validity step was doing expert validity. The result of it was 80,86% and can be categorized as valid, or can be used with revision. The second validity step was user validity, the result it was 81,33% and can be categorized as very valid or can be used without revision. The last step was audience validity based on the result of audience vallidity , it was gotten 81,08% which said the efectivity of the modul. The result from the audience validity can be categorized as very efective, and worthy to use in teaching and learning process. Based on the result of the research, it can be concluded that physics learning module contextual based with characterized stories can use as the interesting teaching materials.
Co-Authors Agus Abdul Gani Ahmad Nor Hamidy Ainul Kiromah Akbar Kurnia Putra Albertus Djoko Lesmono Alfrida Diftia Vestnanda Anggi Diana Pramudita Anggraini, Widia Anis Budi Rizkiyati Aprilia, Wahyuni Arien Fivadilla Arlik Sarinda Aurellya Abdillah Wijaya Putri Aurellya Abdillah Wijaya Putri Bakar, Firdaus Abu Bambang Supriadi bawazir, Fuad Cholifatur Rosidah Cindy Ferdianty Daimatul Makrifah Daulay, Nisrina Ramadhani Della Marchelia Deswita, Triana Desy Nurdiasari Desyandri Desyandri Devi Aprilia Nurvirani Dhana Suhatin Dheny Wahyudhi Dheny Wahyudi Didik Setiyadi Elia Novalina Elisa Putri, Dina Elsa Rahmawati Emi Ariyani Erlyn Yulia Erwin Erwin Faiqotul Himah Febriana Tri Nur Suliana Fitri Amelia Fitri Hariani Fitria, Hasparrini Ningrum Giovani, Eldytha H. Usman, H. Usman H. Usman, H. Usman Hafrida Hafrida Handoko Handoko Hartati Hartati Hasanatul Ulum Heni Ruspitasari Hernando, Riski Hildatul Zannah Hilmi Bin Abdus Salam I Ketut Mahardika Iin Maulina Indah Kurnia Nur Pratiwi Guterres Indah Rustiawan Indrawati Indrawati Iqbal Bunga Pertiwi Ismil Ridayatun Winayah Ivan Fauzani Raharja Karina Laksmiari Khusna, Amsilatul Kukuh Dwi Sudharma L, Sahuri Lailatul Nuraini Lailatul Qomaria Lisa Listyo Wati Liyus, Herry Lubna Lubna Lusiana Candra Dewi Lya Himmatul Ilmi Mardika Wulansari Maryani m Maryani Maryani Maya Arsita Merry Khanza Kusuma Wardhany Naili Afkarina Nawawi, Khabib Nirsa Nindia Putri Novie Damayanti Rachman Novy Titah Nur Faizah Nurhasanah Nurhasanah Nuriman Nuriman Nurul Mega Astutik Nys Arfa Nys. Arfa Pakpahan, Jun Triono Pramudya Dwi Aristya Pramudya Dwi Aristya Putra Prastowo, Sri Handono Budi Putri Ma'rufiyanti Qarmia Amanda Qodi, Muhammad Amin Qurrotu A’yunina Rahayu , Sri Rakhmawati, Dessy Ramadani, Atifa Awdia Rasty Sri Fadiah Restu Dwi Setiyo Utami Restu Yudistira Putri Rif’ati Dina Handayani Rikmadani, Yudi Anton Risna Maylina Rohatin Rohatin Rosdiana Afifah Rahman Sahuri Lasmadi Sahuri Lasmadi Salfa Zahroh Ahadah SAUDAH SAUDAH Septian Ari Kususa Setiawan, M Nanda Shanti Dewi Agustina Sherly Laili Shofira Amatullah Simatun Ni'mah Singgih Bektiarso Sinta Nuriyah Siregar, Elizabeth Siregar, Tania Tri Dewi Siswi Fidayasari Siti Juwariyah Sonia Sonia, Sonia Sri Astutik Sri Septi Dyah Pratiwi Sri Wahyuni Sri Yuliastutik Subiki Subiki Sugiyanto Sugiyanto Sutikno Sutikno Sutoto, Sukamto Syamsul Hadi Syamsul Ph.D M.A. Hadi Trapsilo Prihandono Usman Usman Wahyu Ari Nurdiana Wahyuni Aprilia Wildah Maulidatul Hosnah Yadi, Insya yayan mega lusiana Yuli Yan Tika Yuliske Yuliske Yushardi Yushardi Yushardi Yushardi Zainal Arifin Zainal Arifin Zepyra Damayanti Zidan Afidah