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Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika
Published by Universitas Sultan Ageng Tirtayasa
ISSN : 2442515X     EISSN : 25281976     DOI : http://dx.doi.org/10.30870/gravity.vxix
Core Subject : Science, Education,
Astronomy Earth & Planetary Sciences Education Materials Science & Nanotechnology Physics
The focuses of the manuscript received in the Gravity journal is limited to the topic: Physics Education (Media, Educational Policy, Assessment, Learning Model) Theoretical Physics Material Physics Earth and Environmental Physics Astrophysics Medical Physics Computational Physics and Instrumentation
Arjuna Subject : Fisika dan Astronomi - Fisika dan Astronomi (Lain-Lain)
Articles 12 Documents
 1   2 
Search results for , issue "Vol 7, No 2 (2021)" : 12 Documents clear
Pengembangan Media Pembelajaran Animasi Powerpoint Pada Pokok Bahasan Kalor Devi Nanda Efendi; Bambang Supriadi; Lailatul Nuraini
Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 7, No 2 (2021)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/gravity.v7i2.10820

Abstract

During the Covid-19 Pandemic, teachers were be required to do online learning. Students have difficulty understanding the material provided in the online learning process, so this research aims to produce PowerPoint animation-based learning media and the effectiveness of using PowerPoint animation learning media. The research method used was Research & Development with the ADDIE research design. The research subjects consisted of 32 students of class XI MIPA 1 at SMA Negeri 1 Tanggul. From the validation provided by 2 media experts, validator and user validators (teachers), the PowerPoint animation media was declared incredibly valid with an average confirmation of 3,94. The effectiveness of PowerPoint animation media on student learning outcomes after using the PowerPoint animation learning media states that student learning outcomes increase. The increase in student learning outcomes (n-gain) was 70.69 using the average category of media effectiveness analysis. The study results stated that the PowerPoint animation learning media is feasible to apply in the learning process. Using PowerPoint animation learning media can improve student learning outcomes on heat material. 
The different approaches between Kepler and Newton in determining the force laws Oktarisa, Yuvita
Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 7, No 2 (2021)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/gravity.v7i2.13085

Abstract

One of Kepler’s most significant contributions to science was finding planetary motion laws, which is the foundation of celestial mechanincs. Kepler’s laws of planetary motion were not merely guesswork. He tried to apply his understanding of the relationship between force and distance to explain his planetary laws’ physical reason. However, there is usually no akcnowledgement in introductory physics textbook to the topic of Kepler’s laws regarding how Kepler tried to explain his planetary laws. Most of the introductory physics textbooks only give Newton’s description explaianing Kepler’s laws of planetary motion. This paper describes different approaches between Kepler and Newton in determining the force law and discusses some of its pedagogical implications. 

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