Claim Missing Document
Check
Articles

Found 27 Documents
Search

Effect of the Magnetic Force on Ferrite Pendulum Oscillation Parameters: Parametric Analysis on Ferrite Pendulum Adi, Rusli; Toifur, Moh; Ishafit, Ishafit; Jaafar, Rosly
Indonesian Review of Physics (IRiP) Vol 3, No 1 (2020)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/irip.v3i1.1836

Abstract

The magnitude of the damping force of the mathematical pendulum swinging on a medium is usually proportional to the speed of the pendulum. In this research, the pendulum oscillation parameters oscillating on an air medium under the influence of a magnetic field of 1.8 G will be investigated. In the initial stage, the effect of the magnetic force on the damping coefficient of ferrite pendulum oscillations with an initial deviation of 15 degrees observed. Furthermore, the study continued with varying the angle of deviation from 5 degrees to 25 degrees. The results of the data fitting amplitude (xi) at various swing times (ti) are using to analyze the effect of the angle of deviation on the maximum amplitude. The results showed that for the deviation angle of 15o the coefficient of damping of the medium affected by the magnetic force was 0,0022 greater than the coefficient of air damping 0,00006. It affects the amplitude, which decreases faster than the pendulum amplitude without the influence of magnetic force. Variation in the angle of deviation also affects the amplitude of the pendulum. In the deviation angle below 10, the pendulum motion is more influenced by the magnetic force, whereas in the deviation above 10, the pendulum motion is more dominated by gravity.
Pengembangan Modul Praktikum Gerak Melingkar untuk Siswa Kelas X SMA Muhammadiyah 4 Yogyakarta Raharja, Endra Putra; Ishafit, Ishafit; Kusiana, Rani
Jurnal Penelitian Pendidikan Fisika Vol 5, No 2 (2020): Jurnal Penelitian Pendidikan Fisika
Publisher : Jurusan Pendidikan Fisika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36709/jipfi.v5i2.12966

Abstract

 Materi gerak melingkar memiliki konsep yang sulit dipahami oleh peserta didik. Beberapa konsep dasar yang ada di dalamnya membutuhkan pemahaman yang lebih dari sekedar pengajaran teori di dalam kelas. Melingkar. Pada pembelajaran gerak melingkar di sekolah juga ditemukan juga kekurangan modul untuk mendukung praktikum materi ini. Penelitian ini bertujuan menghasilkan modul praktikum gerak melingkar dan mengetahui kelayakannya untuk digunakan siswa SMA. Metode penelitian yang dilakukan adalah Penelitian dan Pengembangan (research and development) atau R&D dengan model pengembangan ADDIE (Analysis, Design, Development, Implementation, and Evaluation). Hasil penelitian menunjukkan skor rata-rata kelayakan modul adalah 86,25% dengan kategori sangat baik. Adapun skor rata-rata yang didapatkan berdasarkan respon dari siswa adalah 94,5% dengan kategori sangat baik. Hal ini menunjukkan bahwa modul praktikum yang telah dibuat layak digunakan sebagai perangkat praktikum gerak melingkar 
Determination The Coefficient of Restitution in Object as Temperature Function in Partially Elastic Collision Using Phyphox Application on Smartphone hamzarudin hikmatiar; Ishafit Ishafit; Mentari Eka Wahyuni
Science and Technology Indonesia Vol. 4 No. 4 (2019): October
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1251.836 KB) | DOI: 10.26554/sti.2019.4.4.88-93

Abstract

This research aims to determine the coefficient of restitution in object experiencing partially elastic collision when the object falls free using the phyphox application on smartphone. In terms of experiment, this experiment was carried out five times with different temperature. The smartphone is connected on PC through the same wifi network or using tethering by entering the search address that available on phyphox application. After that, the smartphone placed on the board that used as a base when the object dropped, then the object released from the certain height. Data collecting process started by running the phyphox application through a PC to collect the measurement data. The data collected on smartphone is exported to Ms. Excel to fit the data and then the results are plotted in graphical form. The result of the analysis shows the coefficient of restitution value of the object that had variations based on experiment with each temperatures at 32 oC, 28 oC, 24 oC, 20 oC 18 oC and the coefficient of restitution values are 0.889 ± 0.006, 0.890 ± 0.008, 0.891 ± 0.003, 0.892 ± 0.003 and 0.893 ± 0.003. The result of research shows that the lower of the temperature so theres increasing on the coefficient of restitution. So that the coefficient of restitution has avarage’s value is 0.891±0.002. Keywords: coefficient of restitution ,smartphone, phyphox application
Analisis Pengaruh Bahan Bakar Minyak terhadap Energi Kinetik pada Kapal Otok-Otok berbantuan Software Tracker Sebagai Alternatif Media Pembelajaran Fisika Gerak Melingkar Fatmawati, Intan; Ishafit, Ishafit
Jurnal Penelitian Pembelajaran Fisika Vol 12, No 1 (2021): APRIL 2021
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/jp2f.v12i1.7177

Abstract

Local wisdom merupakan budaya lokal yang  menciri khaskan suatu daerah. pelestarian local wisdom dapat dilakukan dalam ranah pembelajaran, terutama dalam pembelajaran fisika gerak melingkar. Tujuan dari  penelitian ini 1) mengetahui nilai konversi minyak terhadap energi kinetik (Ek) dan, 2) pengaruh volume minyak terhadap waktu tempuh. Teknik pengambilan data dilakukan dengan vidio dan dianalisis menggunakan Software Tracker. Hasil eksperimen menunjukkan 1) volume minyak 0,1 ml, 0,2 ml, 0,3 ml dan 0,4 ml menghasilkan energi kinetik  sebesar 0,3 J dan, 2) volume minyak 0,1 ml waktu tempuh 95.000 s, volume minyak 0,2 ml waktu tempuh 120.722 s, volume minyak 0,3 ml waktu tempuh 181.00 s dan volume minyak 0,4 ml waktu tempuh 327.611 s. Hasil tersebut menunjukkan bahwa semakin besar volume minyak tidak berpengaruh terhadap energi kinetik tetapi berpengaruh terhadap waktu tempuh.
Magnetic Field on A Square Helmholtz Coil Experiments Using Remote Laboratory Ishafit, Ishafit; Kustianingsih, Diah Ayu; Indratno, Toni Kus; Sukarelawan, Moh. Irma
Indonesian Review of Physics Vol. 7 No. 1 (2024)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/irip.v7i1.10609

Abstract

This research aims to explore the potential for innovation in physics teaching methods by utilizing remote laboratory technology for square Helmholtz coil magnetic field experiments. This research uses experiments with two variations of the distance between coils, accessed through an online portal-based remote laboratory, and magnetic field data taken using a Vernier magnetic field sensor. The results showed that the remote experiment produced data similar to the analytical predictions, with relative errors of 7.45% and 6.06% for the two different inter-coil distances. In conclusion, remote laboratories have great potential to support innovation in physics teaching methods. This research implies that remote experiments can be an efficient and accurate tool in online physics learning, providing a helpful practicum experience despite being conducted remotely.
PENERAPAN MODEL PEMBELAJARAN PROBLEM BASED LEARNING (PBL) UNTUK MENINGKATKAN PEMAHAMAN KONSEP SISWA PADA MATERI GERAK LURUS Rizaldi, Rizaldi; Ishafit, Ishafit
Relativitas: Jurnal Riset Inovasi Pembelajaran Fisika Vol. 8 No. 1 (2025): Jurnal Riset Inovasi Pembelajaran Fisika
Publisher : Department of Physics Education, Faculty of Teacher Training and Education, UNIVERSITAS MA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/relativitas.v8i1.20708

Abstract

Penelitian ini bertujuan untuk mengetahui peningkatan pemahaman konsep siswa dengan menerapkan model pembelajaran proble based learning (PBL) pada materi gerak lurus kelas X di SMA Negeri 1 Kuta Blang. Penelitian ini menggunakan jenis penelitian eksperimen semu (quasy experiment) dengan desain control group pretest posttest dan pengambilan sampel dengan teknik purposive sampling. Pengambilan data dilakukan di kelas X MIA 1 sebagai kelas eksperimen dengan jumlah siswa 23 orang dan X MIA 2 sebagai kelas kontrol dengan jumlah siswa 25 orang. Data yang diperoleh dianalisis menggunakan statistik inferesial dan aplikasi SPSS 18. Berdasarkan hasil analisis untuk peningkatan pemahaman konsep siswa diperoleh nilai rata-rata tes tertulis berupa pretes dan postest. Pada kelas eksperimen diperoleh nilai rata-rata posttest sebesar 83,7 dan kelas kontrol diperoleh nilai rata-rata posttest sebesar 75,96. Berdasarkan hasil penelitian maka dapat disimpulkan bahwa model pembelajaran PBL dapat meningkatkan pemahaman konsep siswa pada materi gerak lurus kelas X di SMA.
Development of a remote physics laboratory to support equitable access to education Ishafit, Ishafit; Sukarelawan, Moh Irma; Indratno, Toni Kus; Puspitasari, Ariati Dina; Prabowo, Yoga Dwi
International Journal of Evaluation and Research in Education (IJERE) Vol 14, No 3: June 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijere.v14i3.32384

Abstract

Economic disparities and variations in geographical conditions in Indonesia exacerbate access to physics laboratories. Therefore, innovative solutions such as remote physics laboratories are needed to bridge this gap and provide more equitable access to students across the region, regardless of economic or geographical conditions. To overcome this, this research aims to develop a remote physics laboratory for equitable access to quality physics experiments. This research includes 4D model development research. The research subjects involved five students for the functionality test, 84 people for the user test, and ten media experts to assess the feasibility of the product. The instruments used include functionality test instruments, media expert assessments, and usefulness, satisfaction, and ease of use (USE) questionnaires. Tool functionality data and media expert validation were analyzed using the Aiken V technique. At the same time, the level of user acceptance was examined through a combination of Wright maps and logit item values. This development resulted in a remote physics experiment architecture and device with a good functionality assessment index. The assessment by media experts showed high validity. The level of user acceptance is classified in the medium to high category. Thus, the developed R-PhyLab has the potential to be an effective medium in equalizing access to quality physics laboratories in educational institutions that face economic limitations and unfavorable geographical conditions.
Determination of Irrigation Water Surface Flow Velocity Using Video Analysis with Tracker Application and Linear Regression Mahfudz, Khawarizmy; Ishafit, Ishafit
JURNAL PEMBELAJARAN FISIKA Vol. 14 No. 1 (2025): Jurnal Pembelajaran Fisika (JPF) Universitas Jember
Publisher : Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jpf.v14i1.53687

Abstract

Advances in computer technology and software allow for more practical and accurate measurements. This study aims to measure the velocity of irrigation water surface flow using video analysis with Tracker application and linear regression in Microsoft Excel. Video data was recorded in the irrigation canal of Bendhung Lepen, Yogyakarta, using bamboo leaves as test objects. The analysis process involved tracking the motion of the object in the video and calculating the velocity based on the slope of the displacement versus time graph. The results showed that the velocity of water surface flow was (8.39 ± 0.05) cm/s from Tracker analysis and (8.39 ± 0.04) cm/s from Excel linear regression, with a correlation coefficient of 0.9985 and a coefficient of determination of 0.9971. This method proves the reliability and efficiency of a technology-based approach to water velocity measurement.
Resistivity of SnO2 Gas Sensor to Humidity, CO2 Gas, and Temperature in Food Decomposition Process Setiawan, Indra Budi; Toifur, Moh.; Ishafit, Ishafit; Okimustava, Okimustava; Hajatulloh, Ridlo; Susanto, Eko
Lontar Physics Today Vol 4, No 3 (2025): November 2025
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/lpt.v4i3.24866

Abstract

This study aims to determine the sensitivity of a gas sensor based on a Cu substrate coated with SnO2 through an electroplating process, involving variations in electrolyte solution temperature and thermal oxidation. The deposition parameters were set as follows: electrolyte solution prepared by dissolving SnCl2 in distilled water, applied voltage of 4.5 V, electrode distance of 3 cm, and electroplating duration of 3 minutes. Sensor sensitivity tests were carried out by observing the food decomposition process, placing both the food sample and sensor in a testing chamber. Data acquisition of temperature, humidity, CO2 concentration, and sensor resistance was conducted using transducers and Logger Pro software. Based on the results, the sensor sample with an electrolyte temperature of 60°C (sample B) exhibited better performance than the sensor sample with an electrolyte temperature of 30°C (sample A). Sample B demonstrated greater responsiveness to temperature changes, with a coefficient of determination R2 = 0.66943. It also showed better detection of CO2 concentration changes with R2 = 0.98225. This improvement is attributed to a more effective electroplating process, as indicated by the mass change and thickness of the SnO2 layer. The sensitivity of sample B, defined by the equation S([CO2]) = 9.42E-5 - 1.17E-9[CO2], was superior to that of sample A, which followed the equation S([CO2]) = -2.34E-4 + 4.25E-9[CO2], as shown in the plotted graphs. Sample B exhibited a negative linear curve with a gentle slope, indicating a stable gas sensor behaviour.
PENGARUH PENERAPAN MODEL PROJECT BASED LEARNING TERINTEGRASI STEAM TERHADAP BERPIKIR KREATIF DITINJAU DARI PEMAHAMAN KONSEP FISIKA SISWA SMA PADA MATERI DINAMIKA ROTASI Rohman, Abd.; Ishafit, Ishafit; Husna, Hotimatul
JPFT (Jurnal Pendidikan Fisika Tadulako Online) Vol. 9 No. 1 (2021): JPFT (Jurnal Pendidikan Fisika Tadulako Online)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/jpft.v9i1.784

Abstract

The purpose of this study was to describe the effect of implementing the PjBL model with STEAM on creative thinking based on conceptual understanding of high school students on the rotation dynamics material. The research method used was pre-experiment with one group pretest-posttest design. The population was all class XI IPA odd semester SMA Bustanul Mubtadiin Pangorayan Proppo Pamekasan. The samples were selected by purposive sampling. The research instrument used was a concept understanding test and a creative thinking test. The data in this study were analyzed using two-way ANOVA. The results showed that there was a significant effect on PjBL model integrated with STEAM on creative thinking skills in students of class XI IPA in high school (Fhit = 131,231 α = 0,000 <α = 5%), students who had high concept understanding had the ability to think creatively higher than students who have low concept understanding (Fhit = 123,418 α = 0,000 <α = 5%), there was a very good interaction effect between the STEAM integrated PjBL model and concept understanding on students' creative thinking (Fhit = 4,437 α = 0.042 <α = 5%).