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All Journal Physics Education Research Journal Makara Human Behavior Studies in Asia Asian Journal of Science Education Jurnal Pendidikan Fisika Indonesia
Pacala, Frank Angelo
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Education Physics Social Sciences Other

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Tracking the Acceleration Due to Gravity and Damping of a Pendulum: A Video Analysis Pacala, Frank Angelo; Pili, Unofre
Physics Education Research Journal Vol 5, No 2 (2023)
Publisher : Faculty of Science and Education, UIN Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/perj.2023.5.2.16614

Abstract

This study focused on using video analysis to track the acceleration due to gravity and damping of a pendulum. The video tracker analysis software was proven effective in collecting data from several physics experiments. This study offered new insights on using a tracker and combining it with MS Excel to generate a damping graph. A pendulum was set in motion and recorded with a high-speed camera from the iPhone 13. The footage was then analyzed using tracker video analysis, modeling software, and Microsoft Excel to determine the amplitude and frequency of the pendulum's motion. At the same time, the other variables were measured using traditional tools (e.g., the length of the yarn using a meter ruler). The measured values were then used to calculate the acceleration due to gravity and the damping constant of the system. The results showed that the acceleration due to gravity was consistent with the average accepted value, while the damping constant accurately represented what was seen from the generated graph. Overall, this study demonstrated the effectiveness of video analysis in tracking the behavior of physical systems and its potential applications in various fields.
PhETs Photoelectric Effect Simulation: Experiments and Analysis for Classroom Practice Pacala, Frank Angelo
Asian Journal of Science Education Vol 5, No 1: April, 2023
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/ajse.v5i1.31373

Abstract

This paper describes the use of the PhET simulator on the photoelectric effect to explore the behavior of electrons in metal when exposed to light with differing frequencies. Using this simulation, students can be able to observe variations in electron emission when changing various parameters such as intensity or frequency of light. This paper is experimental research to test the PhET simulator on the photoelectric effect in terms of the guiding relationship in the photoelectric effect. This also analyzed the PhET simulation for improvements in classroom activities.The main tool of this research is a computer capable of running the PhET simulation. It was found that all principles of the photoelectric effect are followed by the simulation. This includes if there is an emission of electrons, the relationship between the kinetic energy of the electron and frequency, and the relationship photoelectric current and light intensity. However, it was observed that there is no work function of the metals on the simulation and this can have an effect the prediction if there is an emission or not. The graphs generated of the simulation contains error because of the thick line graph. It would be better for classroom practice if these gaps are bridged and teachers manage to adopt the simulation.
Tracking the Acceleration Due to Gravity and Damping of a Pendulum: A Video Analysis Pacala, Frank Angelo; Pili, Unofre
Physics Education Research Journal Vol. 5 No. 2 (2023)
Publisher : Faculty of Science and Education, UIN Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/perj.2023.5.2.16614

Abstract

This study focused on using video analysis to track the acceleration due to gravity and damping of a pendulum. The video tracker analysis software was proven effective in collecting data from several physics experiments. This study offered new insights on using a tracker and combining it with MS Excel to generate a damping graph. A pendulum was set in motion and recorded with a high-speed camera from the iPhone 13. The footage was then analyzed using tracker video analysis, modeling software, and Microsoft Excel to determine the amplitude and frequency of the pendulum's motion. At the same time, the other variables were measured using traditional tools (e.g., the length of the yarn using a meter ruler). The measured values were then used to calculate the acceleration due to gravity and the damping constant of the system. The results showed that the acceleration due to gravity was consistent with the average accepted value, while the damping constant accurately represented what was seen from the generated graph. Overall, this study demonstrated the effectiveness of video analysis in tracking the behavior of physical systems and its potential applications in various fields.
Comparing The Acceleration Due to Gravity using Traditional Method Versus Tracker Video Analysis: Experiments in A Simple Pendulum Pacala, Frank Angelo; Mendaño, Rezy
Jurnal Pendidikan Fisika Indonesia Vol. 21 No. 1 (2025)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v21i1.16717

Abstract

This study used a simple pendulum to compare the accuracy and precision of the traditional method and Tracker video analysis in determining the acceleration due to gravity (g). The experiment involved two groups of participants: science teachers in the Philippines, who used the traditional method, and high school students in Uzbekistan, who employed video analysis. Both groups conducted multiple trials by measuring the period of the swinging pendulum. Data were collected by manually recording the pendulum’s motion with a stopwatch or through video analysis software, and the resulting periods were used to calculate g. The data were analyzed by comparing the measured values of g from both methods and assessing the precision and accuracy of each. The results indicated that the traditional method provided more accurate g measurements than the video analysis method, though both methods yielded results close to the accepted average value of 9.81 ms−2. The study suggests that both methods are feasible, but user experience and familiarity with the tools significantly impact the results.
The Exodus of Filipino Teachers to Uzbekistan: A Hermeneutic Phenomenological Study Pacala, Frank Angelo
Makara Human Behavior Studies in Asia Vol. 28, No. 1
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Filipino teachers drawn to Uzbekistan were attracted by the prestige and mission of its government schools, bringing world-class teaching experience from numerous countries. This departure of Filipino teachers to Uzbekistan is the focus of a hermeneutic phenomenological study that discloses a valuable tapestry of themes that capture the intricate quality of the educators’ journey. The Filipino teachers who joined this study were employed for a minimum of two years. This study was performed through semi structured interviews, and the data went through structural, thematic analysis, exposing a narrative covering distinct themes. First, the resilience and adaptability of the international educators and the empowerment of the local teachers within the distinctive educational landscape were revealed. Second, the personal dimensions, covering gratitude for their roles, high regard for Filipinos, and living in a peaceful community while embracing simplicity and local culture, were explored by the theme. Third, the strategic motives were showcased, stressing compensation packages, student attitudes, and alignment with the institution's prestige. This study deepens our knowledge of the experiences of international educators, accentuating the intricacies of cross-cultural teaching. The educators’ dedication to efficient teaching programs and an active learning environment, as exhibited in their strategies for maintaining connections and comfort, adds meaningful insights to the broader discourse on global education.
Co-Authors Mendaño, Rezy Pili, Unofre