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All Journal International Journal of Evaluation and Research in Education (IJERE) Jurnal Pendidikan Fisika Indonesia Jurnal Ikatan Alumni Fisika Universitas Negeri Medan JOIV : International Journal on Informatics Visualization Jurnal Penelitian Pendidikan IPA (JPPIPA) Aptisi Transactions on Technopreneurship (ATT) Jurnal Abdimas Sangkabira Indonesian Science Education Research (ISER) JURNAL MUARA PENDIDIKAN Jurnal MENTARI: Manajemen, Pendidikan dan Teknologi Informasi Jurnal Inovasi Pendidikan dan Teknologi Informasi (JIPTI) Journal of Innovative Physics Teaching (JIPT) Indonesian Journal of Emerging Trends in Community Empowerment Jurnal Pendidikan Progresif
Yul Ifda Tanjung, Yul Ifda
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Journal : Journal of Innovative Physics Teaching (JIPT)

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Development of Physics Test Instruments to Measure Problem Solving Skills on Dynamic Fluid Materials Sanjaya, Aditya Putra; Tanjung, Yul Ifda; Mihardi, Satria
Journal of Innovative Physics Teaching Vol. 2 No. 2 (2024): Journal of Innovative Physics Teaching (JIPT)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jipt/vol2-iss2/68

Abstract

Problem solving skills are a fundamental part of physics learning that must be possessed by students in facing challenges and problems that involve critical thinking, logical, systematic and able to make the right decisions. In fact, the availability of instruments to measure these skills is still limited. Based on that, the purpose of this research is to develop a test instrument based on problem solving skills based on Heller's stages on dynamic fluid material that meets the criteria for good instrument feasibility. This type of research is development research (Research and Development / R&D) with a 4D model consisting of 4 stages, namely define, design, develop and disseminate. The subjects of this study were XI grade high school students totaling 36 people for product testing. The results showed that the average value of content validity testing was 93.53% with very valid criteria, while the results of item validation in small and large groups showed that all ten test instruments were categorized as valid. In terms of reliability, the small group obtained a value of 0.84 which is classified as very high reliability and in the large group obtained a value of 0.78 which is classified as high reliability. The results of the student response test obtained a positive response in the small group of 81.00% with a good category and in the large group of 81.32% with a very good category. Based on the results of the study, it is concluded that the dynamic fluid material problem solving test instrument developed as many as 10 questions has met the eligibility criteria of the test instrument including validity and reliability so that it can then be used as a training medium and a measuring tool for problem solving skills.  
Systematic Literature Review: The Role of Earth’s Magnetic Field in Dolphin Migration Navigation Hadi Kesuma, Selfa Raya; Nainggolan, Gabrie Tamahra; Tanjung, Yul Ifda; Tariza Fairuz
Journal of Innovative Physics Teaching Vol. 3 No. 2 (2025): Journal of Innovative Physics Teaching (JIPT)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jipt/vol3-iss2/104

Abstract

The urgency of this study arises from the need to understand how dolphins navigate long-distance migrations in marine environments where visual and acoustic cues are limited. The main problem addressed is the limited integration of scientific evidence on magnetoreception and the extent to which human-generated electromagnetic activities disrupt geomagnetic navigation. This study aims to synthesize recent findings on how dolphins detect and use the Earth’s magnetic field as a natural orientation system and to identify factors that threaten its stability. A Systematic Literature Review (SLR) using PRISMA guidelines was employed to ensure a structured process of identifying, screening, and synthesizing relevant peer-reviewed publications from 2014 to 2025. Five studies that met the inclusion criteria were analyzed thematically. The results show that magnetite-based receptors in the dolphin nervous system allow detection of geomagnetic variations and support the formation of internal spatial maps. Magnetoreception is strengthened through its integration with echolocation and passive electroreception, forming a multisensory navigation system. The findings also indicate that artificial electromagnetic sources, such as submarine cables and sonar, can interfere with geomagnetic cues and reduce navigational accuracy. These results provide implications for conservation and biomimetic technology development.
Co-Authors Abubakar Arvi, Mayfa Dwi Asrizal Bisrul Hapis Tambunan, Bisrul Hapis Budiman Nasution Chatarina Umbul Wahyuni Dewi Wulandari Elvianasti, Mega fadillah, Muhammad Aizri Fairuz, Tariza Festiyed Festiyed Festiyed, - Fitri Arsih Hadi Kesuma, Selfa Raya Irham Ramadhani Lufri Lufri Makrooni, Golaleh Mawardi Nainggolan, Gabrie Tamahra Nuha Febry Anisa Panjaitan, Aries Dame Uli Rangkuti, Muhammad Aswin Ridwan Abdullah Sani Rizky, Agung Rodriguez, Marta Sanjaya, Aditya Putra Satria Mihardi Sibarani, Ruth Masta Yemima Sihombing, Rizky Agassy Simanjuntak, Janter P. Skunda Diliarosta Sumliyah, Sumliyah Syahreza, Dina Sarah Tiur Malasari Siregar, Tiur Malasari Trisnawati Hutagalung Usmeldi Usmeldi Yohandri