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Physics Communication
Published by Universitas Negeri Semarang
ISSN : 25285971     EISSN : 2528598X     DOI : https://doi.org/10.15294/physcomm
Core Subject : Science,
Physics
Physics Communication is devoted to reporting important new developments in the area of physics. Papers cover the fields of: atomic and molecular physics condensed matter and theory of statistical physics nuclear theory fluid theory and plasmas elementary particle physics and quantum field theory quantum mechanics and quantum optics theoretical astrophysics cosmology relativity Certain new interdisciplinary subjects such as theoretical biophysics, mathematical physics and computational physics are also incorporated.
Arjuna Subject : Fisika dan Astronomi - Fisika dan Astronomi (Lain-Lain)
Articles 168 Documents
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Contextual Learning By Using Batik Semarangan for Improving Students’ Learning Achievement Hartanti, Rizka Silviana; Yulianto, Agus; Khumaedi, Khumaedi
Physics Communication Vol 4, No 2 (2020): August 2020
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/physcomm.v4i2.31627

Abstract

This Research is aimed for knowing, (1) the implementation of contextual learning by using Batik Semarangan for physics material especially temperature and heat, (2) the improvement of students’ learning achievements after the application of contextual learning by using Batik Semarangan, and (3) the students’ responses after being given contextual learning by using Batik Semarangan. This research mix methods, namely quantitative and qualitative. This research was conducted in two classed at SMK Walisongo Semarang for student class X TKJ Telkom 1 as experimental class and X TKJ Telkom 2 as control class. The identification of local potential of Batik Semarangan was carried out by using interview and observation technique which were then analyzed qualitatively and the result was substituted to physics material, namely temperature and heat.  Furthermore, learning achievements were assessed from sides of cognitive, affective and psychomotor.  The result showed that contextual learning by using Batik Semarangan was effective for improving cognitive learning achievements as proved by experimental class having value of 0.79 which was higher than the control class of 0.57. In addition, the result showed that contextual learning by using Batik Semarangan was effective in improving effective learning achievements as proved by the experimental class average of 86.55 which was higher than the control class of 76.73. The result also showed that contextual learning by using Batik Semarangan was effective in improving psychomotor learning achievements as proved by the experiment class average score 33.3 higher than control class 25.4. The implementation of contextual learning by using Batik Semarangan got a positive responses by students because it made them easier to understand concepts, to be more skilled, and increased students’ interest in the learning process. Based on the result, it can be concluded that contextual learning with the use of Batik Semarangan can be applied to study temperature and heat material in classroom. Contextual learning with the use of Batik Semarangan can improve students’ learning achievement. Contextual learning with the use of Batik Semarangan got a good response by students.
Analysis of the Try Out Problem for the National Examination of Natural Sciences Physics Type HOTS Heryanto, Wawan Prasetyo; Supriyadi, Supriyadi; Darsono, Teguh
Physics Communication Vol 4, No 2 (2020): August 2020
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/physcomm.v4i2.30995

Abstract

This research's aim is to know about HOTS questions of Physics in try out of National Examination and HOTS's students of Junior High School Muhammadiyah 1 Wonosobo. The research type was descriptive research, and the research used analysis technique. This technique is done by analyze question documents and students' answer sheet of trying out of Physics National Examination HOTS students of Muhammadiyah 1 Wonosobo junior high school. The subjects in this study were students of class IX Muhammadiyah 1 Wonosobo junior high school in the academic year 2019/2020 with 126 students. The data obtained in the form of a percentage of HOTS type questions and the percentage of students absorption of the results of working out the try out problem. Based on the analysis of the data that has been done, obtained by the category of HOTS is 23.5%, namely in the C4 aspects and the absorption of students by 28.5% with the category is not good. Therefore, it can be concluded that type of HOTS questions in the tryout of Physics National Examination has poor distribution.
Improved Understanding of Student's Learning Concept and Motivation in Inclined Plane Material by PhET Simulation Rohim, Ahmad Minanur; Ellianawati, Ellianawati
Physics Communication Vol 4, No 2 (2020): August 2020
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/physcomm.v4i2.29310

Abstract

This research is aimed to improve the understanding of the concept and the motivation of learning physics students on inclined plane material class of Eighth grade of MTs NU I'anatuth-Thullab Mutih Kulon Demak School Year of 2020/2021. This study conducted at the eighth grade of students as the subject consisting of 29 students. This class action research was conducted as much as one cycle consisting of three meetings. The results of pretest data were given moments before the implementation of virtual laboratory media. Based on PhET (Physics Education Technology) simulation, the researcher got different results with the posttest given after the implementation of learning using virtual laboratory media by using PhET. The results of the pretest reached 25% on understanding of student concepts, and there was increased after using the media through posttest which is 75%. There was increased on percentage through understanding of student concepts in inclined plane materials using virtual laboratory media by 50%, the percentage of student learning motivation increased on inclined plane material by 28%, and in the data after using virtual laboratory media got a good category at 76%.
Effectiveness of Physics Learning Using PBL Assisted by PhET Virtual Laboratory Maulani, Nofrina; Linuwih, Suharto; Sulhadi, Sulhadi
Physics Communication Vol 4, No 2 (2020): August 2020
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/physcomm.v4i2.31081

Abstract

This research is motivated by the lack of digital literacy and the complexity of students in the process of teaching and learning activities. In the learning process during PPKM (Enforcement of Community Activity Restrictions) students do online learning at home, often students who are not active are found. In this case, the teacher's role changes from the main role of providing information to being a facilitator in thinking, reflecting and collaborating findings. The use of PhET virtual laboratory media can help improve technological literacy. The purpose of this study was to analyze the effectiveness of the Problem Based Leaning model assisted by the PhET virtual laboratory on student learning outcomes. PhET simulation is an interactive animation that is accessed online and offline using Java and Flash software. The method used is quantitative research with a one-shot case study design. Class X MIPA 7 was used as the experimental class and class X MIPA 8 was used as the control class. The effectiveness of the Problem Based Leaning model assisted by the PhET virtual laboratory in the experimental class obtained a classical completeness score of 83%, while the control class was far below the classical completeness value of 55%.
Development of a Five-Tier Diagnostic Test to Reveal the Student Concept in Fluids
Physics Communication Vol 4, No 1 (2020): February 2020
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/physcomm.v4i1.21181

Abstract

This study aims to develop a five-tier form of fluid misconception diagnostic assessment and to reveal the profile of student’s conceptual understanding in maritime-based schools in the city of Tegal. This study used a 4D model (defining, designing, developing, and disseminating). The sampling technique used purposive sampling. The research samples were Bahari Vocational School Tegal, Al Maarif Vocational School Tegal, and Nahdlatul Ulama Senior High School Tegal. Methods of data collection used documentation, questionnaires, tests, and interviews. Expert validation states that the instrument was valid, has good readability, was easy to understand, and the sentence structure was correct. The reliability of the instrument is 0.958 and declared reliable. A total of 39 questions were categorized as medium, and one question was easy. The discrimination power of the questions obtained was that 30 questions were accepted, eight questions were received with a little improvement, and one question needed improvement. Seventy student misconceptions were identified from seven fluid sub-concepts. The biggest misconception, as much as 46.5% was found in the buoyancy sub-concept, while the smallest misconception was found in the application of Pascal's law at 35.2%. The most dominant misconception is that the deeper a point in the fluid is, the greater the buoyancy. Students assume that the greater the depth, the greater the fluid pressure, so that the buoyancy force is greater. Students believe that buoyancy is influenced by fluid pressure. This misconception is influenced by conceptual appreciation and intuition in daily life.
Identifikasi Struktur Lapisan Bawah Permukaan Lahan Gambut di Desa Arang Limbung Kecamatan Sungai Raya Kabupaten Kubu Raya dengan Metode Resistivitas Konfigurasi Dipole-Dipole
Physics Communication Vol 1, No 2 (2017): August 2017
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/physcomm.v1i2.10869

Abstract

Pendugaan struktur lapisan bawah permukaan lahan gambut di Desa Arang Limbung telah dilakukan dengan menggunakan metode geolistrik tahanan jenis (resistivitas). Penelitian ini bertujuan untuk memberikan informasi terkait struktur tanah dalam rangka persiapan perancangan bangunan di lokasi penelitian. Pengambilan data dilakukan pada lima lintasan dimana panjang tiap lintasannya adalah 150 m dan jarak antar lintasannya adalah 15 m. Konfigurasi elektroda yang digunakan adalah konfigurasi Dipole-Dipole dengan spasi elektrodanya adalah 15 m. Nilai resistivitas semu diinversi menggunakan perangkat lunak Res2Dinv untuk mendapatkan distribusi nilai resistivitas bawah permukaan pada tiap lintasan. Berdasarkan distribusi nilai resistivitas tersebut dapat diinterpretasikan bahwa struktur lapisan bawah permukaan lahan gambut di Desa Arang Limbung terdiri dari empat lapisan utama yaitu gambut, tanah liat berpasir, pasir basah dan batuan bercampur pasir. Ketebalan lapisan gambut bervariasi dari 2,56 m hingga 16 m. Lapisan ini berada pada posisi paling atas.  Lapisan tanah liat berpasir berada pada kedalaman 2,56 m hingga 32,7 m. Lapisan pasir basah berada pada kedalaman 13,1 m hingga 30 m dan lapisan batuan bercampur pasir berada pada kedalaman 13,1 m hingga 32,7 m. Berdasarkan struktur ini maka direkomendasikan agar kedalaman pondasi bangunan yang akan dibuat di lokasi ini harus melebihi 16 m.
Development of Interactive Media-Based Wave Teaching Materials to Improve Students' Problem and Performance Capability
Physics Communication Vol 3, No 1 (2019): February 2019
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/physcomm.v3i1.15834

Abstract

This study aims to produce teaching materials to improve problem-solving skills that are feasible to use as a class XII physics learning media on sound wave material. In addition, it is also to find out the response of students to teaching materials developed in terms of meeting the standards of usability and quality. This research is R D research with design according to Borg including: needs analysis, product planning and development, product development, product evaluation, and final products. The instructional materials developed have been implemented in 63 students of class XII SMAN 5 Semarang. Data collection is done by giving a validation sheet to the senior teacher. Data on students 'problem solving abilities were obtained from the results of the pretest and posttest while the students' performance was seen from the observation of practical activities in the laboratory. Students are also given a questionnaire to provide input on the teaching materials that have been developed. The results of the study indicate that the product of development is declared feasible based on expert judgment. Implementation of teaching materials in physics learning in sound wave material is able to improve problem solving skills and student performance.
Identifikasi sebaran anomali magnetik di perairan Kabupaten Sambas Kalimantan Barat dengan menggunakan metode Geomagnet
Physics Communication Vol 1, No 1 (2017): February 2017
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/physcomm.v1i1.8999

Abstract

The distribution of magnetic anomalies in Sambas Sea has been investigated using the Magnetic method. The raw data, which acquired, have been corrected using IGRF data and tie-line leveling to obtain the local magnetic field distribution. Then, from the corrected data obtained four anomalous zones. Next, a slice that lying on the anomalous zones (line AB, CD, EF, and GH) was made to obtain the subsurface structures which obtain using inversion method. The results show that the presence of magnetic anomalies at the lines AB, EF and GH (with susceptibility values between 1.2 to 19.2) due to the magnetite rock at the subsurface. Moreover, The presence of magnetic anomalies at the line CD (with susceptibility values of 0.3 to 3.5) is caused by ilmenite rock. The correlation coefficients between the observation data and calculated data for all lines are between 0.98 to 0.99.
Integration of STEM-PjBL on Alternative Energy Sources to Improve Entrepreneurial Science Thinking Rusman, Rusman; Supriyadi, Supriyadi; Sulhadi, Sulhadi
Physics Communication Vol 5, No 1 (2021): February 2021
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/physcomm.v5i1.35241

Abstract

The demographic bonus by 2030 requires everyone to compete for jobs. Cultivating character and entrepreneurial thinking is an alternative to dealing with limited employment opportunities. This study aims investigate the increase of entrepreneurial science thinking through the STEM-PjBL integration learning model on alternative energy sources. This study used the Mix Method method in the form of a Sequential Explanatory design that used quantitative data as the main data, while qualitative data as supporting data. From the resulted of observations on four aspects of entrepreneurial science thinking, all aspects have a percentage above 70% so that they are included in the criteria quite well. The results of these observations indicated that the research carried out is in accordance with the research objective, namely the integration of STEM-PjBL can improve entrepreneurial science thinking.
Analysis of Student Practical using Logger Pro to Improve Graphic Representation of Harmonic Oscillation Material
Physics Communication Vol 2, No 2 (2018): August 2018
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/physcomm.v2i2.14447

Abstract

This study aims to analyze the activities of computational practicum using logger pro software to improve student graphic representation in understanding the oscillation material. The sample are 35 students of class X Mipa 3 SMA 1 Bae in 2016/2017 decided by purposive sampling technique. The research instrument is a harmonic oscillation sheet and a description test that measures the ability of graphical representation. The research method used mixed method with concurent embeded design. Analysis of research data using comparative test t paired sample test and N - Gain test of student scores. Students found some synchronous oscillation characteristics between the results of the lab and the results of the analysis of six graphs from the plot logger pro. The results of pretest and post-test average score are respectively 20.85 and 43.73. Description of comparative test statistic yields tcount ttable which means there is significant difference between pre-test and post-test value data, and N-Gain test is 0.29 which means there is increasing value in low category. It shows computational activity using logger pro, effectively improving students' ability in multiple graph representations to understand the characteristics of harmonic oscillations.

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