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Lontar Physics Today
Published by Universitas PGRI Semarang
ISSN : -     EISSN : 28280970     DOI : https://doi.org/10.26877/lpt
Core Subject : Science, Education,
Education Physics
LONTAR PHYSICS TODAY is a scientific journal published by the Physics Education Study Program, Universitas PGRI Semarang with the scope of all areas in the fields of physics and physics education. Lontar Physics Today papers will be published three times a year on February, June, and Nopember by Physics Education study program, Universitas PGRI Semarang, Semarang, Central Java, Indonesia. Please read this guide carefully. Authors who wish to submit their manuscripts to the editors of the Lontar Physics Today must comply with the writing guidelines. If the submitted manuscript does not comply with the guidelines or is written in a different format, it will be rejected by the editor before further review. The editor will only accept manuscripts that meet the specified format.
Arjuna Subject : Fisika dan Astronomi - Fisika dan Astronomi (Lain-Lain)
Articles 76 Documents
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Pengembangan Media Pembelajaran Fisika Mobile Learning Berbasis STEM-PBL untuk Meningkatkan Keterampilan Berpikir Kritis dan Kolaborasi Wahyuningsih, Diana Arin; Marwoto, Putut; Wahyuni, Siti
Lontar Physics Today Vol 4, No 2 (2025): June 2025
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/lpt.v4i2.23639

Abstract

Penelitian ini bertujuan untuk mengembangkan media pembelajaran fisika berbasis mobile learning dengan pendekatan STEM-PBL guna meningkatkan kemampuan berpikir kritis dan kolaborasi siswa kelas XI pada pokok bahasan termodinamika. Penelitian ini menggunakan metode pengembangan yang diadaptasi dari model ADDIE, yang terdiri dari lima tahap, yaitu Analisis, Desain, Pengembangan, Implementasi, dan Evaluasi. Proses pengembangan dilakukan untuk menghasilkan dan mengevaluasi kelayakan dan efektivitas media pembelajaran. Uji coba dilakukan dalam dua tahap, yaitu uji coba skala kecil dan uji coba skala besar. Hasil validasi menunjukkan bahwa media tersebut masuk dalam kategori sangat layak. Efektivitas produk dianalisis menggunakan uji N-Gain, dengan hasil perolehan skor gain sebesar 0,59 pada uji coba skala kecil dan 0,62 pada uji coba skala besar, keduanya tergolong efektifitas sedang. Selain itu, aktivitas pembelajaran kolaboratif menunjukkan peningkatan dalam pengambilan keputusan bersama, penyelesaian tugas, menghargai pendapat orang lain, dan berbagi ide. Berdasarkan hasil tersebut, media pembelajaran fisika mobile yang dikembangkan dengan pendekatan STEM (Science, Technology, Engineering, and Mathematics) dinilai layak digunakan.Kata kunci: STEM-PBL, Keterampilan Berpikir Kritis, Kolaborasi Abstract. This study aims to develop a mobile learning-based physics instructional media using the STEM-PBL approach to enhance the critical thinking and collaboration skills of Grade XI students on the topic of thermodynamics. The research employed a development method adapted from the ADDIE model, which consists of five stages: Analysis, Design, Development, Implementation, and Evaluation. The development process was carried out to produce and evaluate the feasibility and effectiveness of the learning media. The trial was conducted in two stages: small-scale and large-scale testing. The validation results indicated that the media is categorized as highly feasible. The product's effectiveness was analyzed using the N-Gain test, with results showing a gain score of 0.59 in the small-scale trial and 0.62 in the large-scale trial, both classified as moderate effectiveness. Furthermore, collaborative learning activities showed improvements in joint decision-making, task completion, respecting others’ opinions, and sharing ideas. Based on the results, the mobile physics learning media developed with the STEM (Science, Technology, Engineering, and Mathematics) approach is considered feasible and suitable for classroom use.Keywords: STEM-PBL, Critical Thinking, Collaboration
Penerapan Model Pembelajaran Logan Avenue Problem Solving untuk Meningkatkan Kemampuan Pemecahan Masalah Peserta Didik Pada Materi Fluida Dinamis Fahrurrozi, Akmal; Rochman, Choirul; Sukmawardani, Yulia; Malik, Adam; Nasrudin, Dindin
Lontar Physics Today Vol 4, No 2 (2025): June 2025
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/lpt.v4i2.23976

Abstract

Penelitian ini bertujuan untuk mengetahui peningkatan keterampilan pemecahan masalah pada peserta didik kelas XI MIPA MAN 1 Tasikmalaya menggunakan bantuan model pembelajaran logan avenue problem solving. Metode yang digunakan dalam penelitian ini adalah metode Pre-Experimental dengan desain one-group pretest-posttest, peneliti melakukan pengukuran awal (pretest) terhadap keterampilan pemecahan masalah peserta didik, kemudian perlakuan (treatment) berupa penerapan model pembelajaran   kepada subyek penelitian berjumlah 32 orang. rata-rata pretest peserta didik adalah sebesar 36, pretest dilakukan sebelum menerapkan model pembelajaran logan avenue problem solving (LAPS-heuristik) dalam kegiatan pembelajaran. Sedangkan nilai rata-rata posttest peserta didik adalah sebesar 75, posttest dilakukan setelah diterapkannya model pembelajaran logan avenue problem solving (LAPS-heuristik) dalam kegiatan pembelajaran. Nilai pretest dan posttest kemudian dianalisis untuk mengukur peningkatan keterampilan pemecahan masalah peserta didik sehingga diperoleh nilai N-gain. Nilai N-gain­ yang didapatkan adalah sebesar 0.62 yang berada dalam kategori sedang. Oleh karena itu, keterampilan pemecahan masalah peserta didik dapat dikatakan mengalami peningkatan dengan diterapkannya model pembelajaran logan avenue problem solving (LAPS-heuristik).Kata kunci: pemecahan masalah, logan avenue problem solving (LAPS), fluida dinamis Abstract. This study aims to determine the improvement of problem-solving skills in class XI MIPA MAN 1 Tasikmalaya students using the help of the Logan Avenue problem-solving learning model. The method used in this study is the Pre-Experimental method with a one-group pretest-posttest design, researchers conducted an initial measurement (pretest) of students' problem-solving skills, then treatment in the form of applying the learning model to 32 research subjects. The average pretest of students is 36, the pretest was conducted before applying the Logan Avenue problem-solving learning model (LAPS-heuristic) in learning activities. While the average posttest value of students is 75, the posttest was conducted after the application of the Logan Avenue problem-solving learning model (LAPS-heuristic) in learning activities. The pretest and posttest values were then analyzed to measure the improvement of students' problem-solving skills to obtain the N-gain value. The N-gain value obtained was 0.62 which is in the moderate category. Therefore, it can be said that students' problem-solving skills have increased with the implementation of the Logan Avenue problem-solving (LAPS-heuristic) learning model.Keywords: problem solving, logan avenue problem solving (LAPS), fluid dynamics
Analisis Keterampilan Computational Thinking dan Creativity pada Pembelajaran Fisika di SMA N 1 Pemalang Triana, Desy; Patonah, Siti; Nuroso, Harto
Lontar Physics Today Vol 4, No 2 (2025): June 2025
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/lpt.v4i2.23769

Abstract

Pembelajaran fisika di SMA N 1 Pemalang menuntut kemampuan siswa untuk memahami konsep, menganalisis fenomena, dan memecahkan masalah secara sistematis dalam mendorong siswa menemukan pendekatan inovatif dan orisinal dalam menyelesaikan permasalahan fisika. Penelitian ini bertujuan untuk menganalisis keterampilan computational thinking dan creativity siswa pada pembelajaran fisika di SMA N 1 Pemalang. Penelitian ini dilakukan dengan menggunakan penelitian deskriptif kualitatif. Peneliti akan mendriskripsikan analisis keterampilan computational thinking dan creativity siswa pada pembelajaran fisika. Teknik pengumpulan data untuk computational thinking menggunakan soal esai materi usaha dan energi. Keterampilan creativity siswa dengan menggunakan lembar observasi dan kuesioner. Hasil penelitian menunjukkan bahwa secara umum keterampilan computational thinking siswa dalam pembelajaran fisika di SMA Negeri 1 Pemalang berada pada kategori sedang dengan rerata persentase 69,78%, sedangkan keterampilan creativity siswa berada pada kategori baik, dengan rerata 71,14%. Siswa menunjukkan kemampuan tinggi dalam mengkomunikasian . Hasil ini menunjukkan bahwa meskipun siswa telah memiliki kemampuan dasar dalam computational thinking dan creativity, terdapat beberapa aspek penting yang perlu ditingkatkan. Peningkatan ini dapat dilakukan melalui pendekatan pembelajaran fisika yang lebih terintegrasi dengan kegiatan yang menekankan untuk memecahkan masalah, merancang sistem, dan memahami perilaku manusia dengan menggunakan konsep-konsep dasar dalam ilmu computer.Kata kunci: Computational Thinking, Creativity, Pembelajaran Fisika, Deskriptif kualitatif, inovatif.Abstract. Physics learning at SMA N 1 Pemalang requires students to understand concepts, analyze phenomena, and solve problems systematically in encouraging students to find innovative and original approaches in solving physics problems. This study aims to analyze students' computational thinking and creativity skills in physics learning at SMA N 1 Pemalang. This study was conducted using qualitative descriptive research. Researchers will describe the analysis of students' computational thinking and creativity skills in physics learning. Data collection techniques for computational thinking used essay questions on work and energy material. Students' creativity skills were measured using observation sheets and questionnaires. The results of the study showed that in general, students' computational thinking skills in physics learning at SMA Negeri 1 Pemalang were in the moderate category with an average percentage of 69.78%, while students' creativity skills were in the good category, with an average of 71.14%. Students showed high abilities in communicating. These results indicate that although students have basic abilities in computational thinking and creativity, there are several important aspects that need to be improved. This improvement can be achieved through a more integrated approach to physics learning with activities that emphasize problem solving, system design, and understanding human behavior using basic concepts in computer science.Keywords: Computational Thinking, Creativity, Physics Learning, Qualitative Descriptive, innovative.
Investigasi Kesulitan Mahasiswa dalam Pembelajaran Berbasis Riset pada Perkuliahan Fisika Lingkungan Marianus, Marianus; Lahope, Kenny Setiawan
Lontar Physics Today Vol 4, No 2 (2025): June 2025
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/lpt.v4i2.23654

Abstract

Penelitian ini menginvestigasi kesulitan-kesulitan yang dihadapi mahasiswa fisika dalam pembelajaran berbasis riset pada mata kuliah Fisika Lingkungan. Studi ini mengadopsi pendekatan kualitatif deskriptif untuk mengidentifikasi akar permasalahan serta faktor-faktor yang berkontribusi terhadap hambatan belajar tersebut. Metode pengumpulan data meliputi wawancara mendalam dan observasi kelas untuk memperoleh pemahaman komprehensif mengenai pengalaman belajar mahasiswa. Penelitian dilaksanakan pada enam mahasiswa dan dua dosen pengampuh mata kuliah fisika lingkungan yang menerapkan pembelajaran berbasis riset. Data dalam penelitian ini dikumpulkan melalui wawancara yang dilakukan langsung dengan mahasiswa dan dosen pengampu mata kuliah Fisika Lingkungan, observasi partisipatif saat proses pembelajaran berbasis riset berlangsung, serta studi dokumentasi terhadap laporan riset mahasiswa dan materi perkuliahan terkait. Teknik analisis data dilakukan menggunakan Model Miles dan Huberman yang melibatkan pengumpulan data, reduksi data, penyajian data, dan penarikan kesimpulan untuk mengidentifikasi pola-pola kesulitan yang muncul secara sistematis. Temuan yang didapati menunjukkan kurangnya kemampuan mahasiswa dalam menuliskan argumen-argumen ilmiah, pemilhan metode, pegumpulan data, dan analisis data menggunakan program yang tepat; dimana para mahasiswa masih perlu mengikuti pelatihan atau workshop mengenai teknik menulis karya ilmiah atau artikel riset agar menjadi lebih mahir dalam menganalisis data, serta perlu adanya peningkatan literasi digital.
Efektivitas Pendampingan Belajar terhadap Capaian Pemahaman Konsep Fisika pada Siswa Kelas X-2 SMA Negeri 8 Surakarta Cahyani, Dwi Fitri; Ningrum, Faridhatul Fitriya; Khairina, Nesya Atika Nur
Lontar Physics Today Vol 4, No 2 (2025): June 2025
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/lpt.v4i2.23459

Abstract

Penelitian ini bertujuan untuk mengkaji efektivitas pendampingan belajar dalam meningkatkan pemahaman konsep fisika, serta mengidentifikasi berbagai faktor yang memengaruhi kesulitan belajar fisika pada peserta didik kelas X-2 SMA Negeri 8 Surakarta. Metode penelitian yang digunakan merupakan kombinasi pendekatan kualitatif deskriptif dan kuantitatif, dengan desain pra-eksperimen tipe one group pretest-posttest. Pengumpulan data dilakukan melalui observasi kegiatan pembelajaran dan pemberian tes sebelum dan sesudah pendampingan. Data yang terkumpul kemudian dianalisis menggunakan uji statistik Paired Sample t-Test. Hasil penelitian menunjukkan adanya peningkatan pemahaman konsep fisika secara signifikan setelah pelaksanaan pendampingan belajar, meskipun sebagian kecil siswa mengalami penurunan skor. Dengan demikian, pendampingan belajar terbukti efektif dalam meningkatkan pemahaman konsep fisika pada siswa.Kata kunci: pendampingan belajar, pemahaman konsep, fisika, efektivitas Abstract. This study aims to examine the effectiveness of learning assistance in improving understanding of physics concepts, as well as identifying various factors that influence the difficulties of learning physics in class X-2 students of SMA Negeri 8 Surakarta. The research method used is a combination of descriptive qualitative and quantitative approaches, with a pre-experimental design of the one group pretest-posttest type. Data collection was carried out through observation of learning activities and giving tests before and after assistance. The collected data were then analyzed using the Paired Sample t-Test statistical test. The results of the study showed a significant increase in understanding of physics concepts after the implementation of learning assistance, although a small number of students experienced a decrease in scores. Thus, learning assistance has proven effective in improving students' understanding of physics concepts.Keywords: learning assistance, conceptual understanding, physics, effectiveness
Instructional Tasks for Fostering Scientific Creativity in Physics Education: A Systematic Review (2020–2024) Saefan, Joko; Kurniawan, Wawan; Rini, Nur Widya
Lontar Physics Today Vol 4, No 2 (2025): June 2025
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/lpt.v4i2.24435

Abstract

This systematic literature review explores research on scientific creativity in physics education published between 2020 and 2024, with a particular focus on the intersection of instructional tasks and physics topics. Using PRISMA-based identification, screening, eligibility, and synthesis procedures, 130 initial records from Scopus were narrowed to 20 eligible studies that explicitly addressed both instructional task types and physics-related content. Instructional tasks were classified into seven categories as problem finding, open-ended problem solving, creative experiment design, hypothesis generation, modeling tasks, product improvement, and interdisciplinary tasks, while physics topics were coded from domain-specific subjects to broader categories. Findings indicate a strong dominance of modeling tasks, particularly when paired with general topics, reflecting their adaptability to varied instructional contexts and alignment with STEM or STEAM frameworks. In contrast, tasks such as creative experiment design and product improvement were less represented, and domain-specific topics appeared infrequently. This pattern suggests a tendency toward flexible but generalized approaches to fostering creativity, potentially at the expense of deep disciplinary engagement. The review highlights the need to diversify instructional tasks and embed creative learning within core physics content. These insights carry implications for curriculum design, teacher professional development, and future research aiming to balance interdisciplinary breadth with disciplinary depth in promoting scientific creativity in physics education.
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.
Analytical Solution of Transverse Electric and Transverse Magnetic Mode Electromagnetic Wave Equations in Left-Handed Materials Handayani, Iryan Dwi; Muliandhi, Puri; Wahjoerini, Wahjoerini; Pamurti, Andarina Aji
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.v4i3.25060

Abstract

Artificial composite materials that focus on electromagnetic waves are known as metamaterials. Metamaterials are artificial materials engineered by human technology, possessing a geometric structure built from microscopic, engineerable materials. The goal is for the new material to be able to direct light, sound, and waves, making it useful. Metamaterials are known as left-handed materials (LHMs), but the concept of metamaterials is broader than LHM. The purpose of this research is to solve the transverse electric (TE) and transverse magnetic (TM) electromagnetic wave equations in left-handed materials (LHMs) using the Nikiforov-Uvarov approach and to analyze the results of the energy spectrum equation from the solution of the transverse electric (TE) and transverse magnetic (TM) electromagnetic wave equations in left-handed medium (LHM). This research was conducted using Matlab software. The material being studied is the positive-negative gradient profile in an LHM medium thru variations in dielectric permittivity and/or magnetic permeability. Energy and wave equations were obtained with their visualization.
Citizen Science in Science-Physics Class: Building Contextual Climate Change Literacy Andini, Elvina Risma; Siswanto, Joko
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.v4i3.25078

Abstract

This study aims to examine the potential of integrating Citizen Science (CS) into science-physics learning as a pedagogical approach that can help shape a contextual understanding of climate change. This study used the Systematic Literature Review (SLR) method with reference to the PRISMA 2020 guidelines. The review process was carried out through several steps, namely problem identification, literature search in various databases, determination of inclusion and exclusion criteria, selection of articles, and thematic analysis of literature that met the criteria. Of the 35 articles identified, 15 were selected for further in-depth analysis. The literature review indicates that the integration of CS into science-physics learning can effectively improve cognitive aspects (scientific literacy, critical thinking skills, and creativity), affective (positive attitudes towards the environment, self-confidence, and relationships with the scientific community), and behavioral (awareness of pro-environmental actions). However, significant behavioral changes are still limited, and implementation faces obstacles such as limited time, lack of teacher competence, and integration with the official curriculum. The uniqueness of this study lies in mapping the contribution of Citizen Science in strengthening students' climate literacy comprehensively. Citizen Science serves not only as a science learning method but also as a medium of scientific and social participation that connects scientific knowledge, environmental awareness, and concrete action.
Content Analysis of Socio-Scientific Issues Research in Physics Learning 2020-2025: Systematic Literature Review Indraswari, Anisa Wulan; Wahyuni, Siti
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.v4i3.24894

Abstract

This study aims to identify trends and directions of studies related to the socio-scientific issues (SSI) approach in physics education. Using the Systematic Literature Review (SLR) method, 11 articles published between 2020-2025 were analyzed through a bibliometric approach and content analysis. The results show that the SSI approach is not only utilized as a learning strategy, but also as a transformative tool that integrates cognitive, affective, and social values aspects. Energy topics and environmental issues dominate the learning context, while other physics topics such as waves and modern physics are less explored. In addition, there is a tendency to apply SSI at the high school level, which is considered more cognitively prepared and reflective. This research recommends diversifying the context of SSI and strengthening teachers' capacity in designing contextual and meaningful physics learning in the post-pandemic era.

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