Al-Khazini: Jurnal Pendidikan Fisika

Analysis of Understanding Concepts and Obstacles to Understanding Concepts of Thermodynamics in Physics Lessons

2024-12-01T08:46:07+00:00

This study aims to analyze the concept understanding and concept understanding constraints of students of class XI IPA 1 SMA Negeri 1 Dolok Batu Nanggar on thermodynamic material in physics lessons.

The research method used in this research is a quantitative descriptive method with a research sample of 30 students of class XI IPA 1 SMA Negeri 1 Dolok Batu Nanggar. The instrument used is a questionnaire containing questions about thermodynamic concepts.

The results showed (1) The understanding of the concept of students in class XI IPA 1 at SMA Negeri 1 Dolok Batu Nanggar is categorized as moderate in terms of understanding the concept of Thermodynamics material in physics lessons with a percentage of 50%. (2) The highest obstacle experienced by students of class XI IPA 1 at SMA Negeri 1 Dolok Batu Nanggar in understanding the concept of thermodynamic material in physics lessons is the lack of supporting resources such as textbooks or additional learning materials which makes thermodynamics difficult to understand by students with a percentage of 80%. (3) The concept of thermodynamics that is most difficult to understand by students of class XI IPA 1 at SMA Negeri 1 Dolok Batu Nanggar in thermodynamics material is that students find it difficult to understand the carnot cycle series shown in a graph with a percentage result of 63.3%.

Pengembangan Video Pembelajaran Berbasis Literasi Digital Mitigasi Bencana Banjir dan Tanah Longsor

2025-01-20T07:33:13+00:00

This research aims to determine the development of digital literacy-based learning videos mitigating flood and landslide disasters that meet valid and effective criteria. This type of research is research and development (R&D) with the DDD-E development model consisting of the stages of decide, design, develop, and evaluate. The subject of this study consisted of 2 validators, 1 educator and 22 students of class VII Junior High School Negeri 1 Masamba. The determination of the validity criteria of the magazine uses the aiken V index test with three components of material expert assessment criteria, namely material, presentation, and language aspects, as well as three media expert assessment criteria namely display, sound and text, and presentation. The results of this study showed that the video met the validity criterion with aiken index values V= 0.83 and V=0.81. The effectiveness rate of the magazine showed that 79% of the overall number of learners and 100% of educators responded very positively after using the magazine. In addition, learning results obtained by learners after using digital literacy-based learning videos based on flood and landslide disaster mitigation were obtained 100% of learners obtained learning knowledge above KKM and in test analysis t-1 samples obtained a significant value of 2 tailed < 0,05. Based on these data it can be concluded that digital literacy-based learning videos of flood and landslide disaster mitigation are valid and effective.

Determining Surface Tension of Liquids: Molecular Mechanisms and Practical Applications

2025-01-20T07:37:39+00:00

This study aims to explain the molecular mechanisms controlling the surface tension of liquids and determine the magnitude of the surface tension of liquids. The research was conducted through laboratory experiments with variations in temperature and the addition of surfactants. Data was collected by dipping the device into soapy water and measuring the changes in string tension before and after immersion. The results showed that the surface tension of hot soapy water is lower than that of cold soapy water. This reduction in surface tension is due to the increased kinetic energy of molecules at higher temperatures. These findings are relevant in various scientific and industrial applications, including capillarity in plants, industrial cleaning, and understanding the hydrological cycle. This research provides a deeper understanding of surface tension and its implications in everyday life.

Game Based Learning Model in Physics Learning

2025-01-20T07:53:38+00:00

This research aims to analyze the use of technology in the form of game based learning in learning which includes: (1) problems that cause the use of game based learning in learning, (2) variables that are influenced by the use of game based learning in learning. This research method is a literature review with 10 articles in journals. Data collection is carried out by collecting similar scientific articles and then analyzing them. The results of this literature review research show that the main problem that causes the use of game based learning in learning is that the material taught is too difficult and uninteresting so that one cannot concentrate during learning. Furthermore, the variable that greatly influences the use of game-based learning is effectiveness.

Zoom-Based Learning Model in Physics Learning

2025-01-20T07:57:40+00:00

Penelitian ini bertujuan untuk menganalisis Pembelajaran berbasis Zoom yang mencakup : (1) permasalahan yang menyebabkan pembelajaran berbasis Zoom dalam pembelajaran, (2) Variabel yang dipengaruhi oleh pemanfaatan pembelajaran berbasis Zoom dalam Pembelajaran. Metode penelitian ini adalah literatur riview dengan sampel sebanyak 10 artikel. Pengumpulan dilakukan dengan mengumpulkan artikel ilmiah yang sejenis terkait dengan pembelajaran berbasis Zoom dan kemudian menganalisisnya. Hasil penelitian Literature riviw ini menunjukkan bahwa permasalahan utama yang paling banyak menyebabkan pembelajaran berbasis Zoom dalam pembelajaran adalah Pandemi Covid-19. selanjutnya mengenai variabel yang banyak terpengaruh dengan pembelajaran berbasis Zoom adalah hasil belajar siswa.