This research is motivated by the fact that physics learning content based on mobile learning can be accessed widely and most students have cellphones, but it has not been widely used to increase student enthusiasm in learning physics. Physics Learning Media Based on Mobile Learning is an effort to solve this problem. One of them is by Development of Physics Learning Media-Based Mobile Learning Using Adobe Flash CS6. This study aimed to determine the development of learning media products based on mobile learning using adobe flash CS6 and to examine the the feasibility of learning media based on mobile learning using Adobe Flash CS6 at Muhammadiyah University of Makassar. This type of research was a research and development starting from the defining stage (define), the design stage (design), and the development stage (develop). This mobile learning-based physics learning media was tested for validity by 2 experts of media, and tested for its effectiveness by 33 students. The results achieved were the m-learning media products that used the adobe flash CS6 application with validity criteria that were relevant, consistent and have practical usability, as well as effective implementation. These instructional media products can be used by teaching staff and students in higher education. as well as effective implementation. These instructional media products can be used by teaching staff and students in higher education. as well as effective implementation. These instructional media products can be used by teaching staff and students in higher education.
The photoelectric effect experiment generally uses a very sophisticated and expensive apparatus. Some high schools and even universities in Indonesia cannot afford to conduct this experiment because of the high price of the apparatus. The purpose of this study was to develop a user-friendly, and cost-effective teaching aids which can be used to demonstrate the concepts of modern physics related to the photoelectric effect. The stages of this study employed the Four-D model, namely define, design, develop, and disseminate. Based on experts and practitioner evaluation, the developed teaching aids and practicum devices of photoelectric effect experiment were found to be valid and reliable. The results of the experiment by using this developed teaching aids of the photoelectric effect showed that there is a linear relationship between the stopping potential and the frequency of light emitted by the LED. These results are consistent with Millikan's experimental results, the first physicist who succeed in proving Einstein's hypothesis of the photoelectric effect, that in the photoelectric effect the stopping potential does not depend on the intensity of light but depends only on the frequency of light. In this study, the Planck’s constant value obtained is 6.408x10-34 J.s. Although this value is slightly smaller than the accepted value of Planck's constant that is 6.626x10-34 J.s, it is good enough considering the instrumental error occurred during the measurement of current and voltage. Furthermore, the students’ perception of the developed teaching aids and practicum devices of the photoelectric effects experiment are 74.9% (good) and 80.2% (very good), respectively. This indicates that the photoelectric effect experiment teaching aids and practicum devices that have been developed can be used to demonstrate and prove the concepts of modern physics related to the photoelectric phenomena correctly.Keywords: Teaching Aids, Photoelectric Effect, Students’ Perception
Assessment is essential to measure students' achievement of learning objectives. Assessments in Basic physics courses are still categorized as manual, unstructured, and outdated. Using descriptive statistics, this study aims to investigate the need for digital assessments in Basic physics courses. The samples were taken from two public universities, two private universities, and a university with Physics Education Study Programs. They were half of each university students’ number per class. The number of respondents from Public university A, Public university B, Private University C, Private University D, and University E were 91, 49, 25, 20, and 29 students, respectively. Data collection was carried out using a questionnaire via a google form. Data obtained was analyzed by calculating the percentage for each indicator. Research indicators consist of the availability of teaching materials, the application of blended models, students' interest in basic physics, and the availability of assessments of the physics learning process. The results show that the five institutions that provide Basic Physics courses have not implemented digital assessments optimally. Of the five tertiary institutions that became the research sample, only one institution achieved the minimum target, with a score of 55.31% in the class of 2021 at university A. Meanwhile, the other four tertiary institutions did not achieve 50% in the last five batches. Therefore, lecturers must develop digital assessments in basic physics courses using the Kahoot application.
This simple experiment with title the analysis of the effect of cross-sectional area on air flow velocity using a venturimeter tube with aim to know the relation between section wide, speed of water flow and water level in capillary pipes and to know basic principle of Bernoulli and the application in simple set. The activity was reading water level of capillary pipes the caused by changes of water flow that started from heavy, medium, and low. Then analyzed the data that got for every changes of water flow that started from count the different water level in capillary pipes on big pipes and small pipes after that looking for speed of fluid flow on both pipes. Based on analyze data as a result relation between section wide, speed of water flow and water level in capillary pipes that was as bigger of section wide then the speed of water flow was getting smaller and the level water in capillary pipes was getting taller. This is appropriate with Bernoulli principle that states an increase in the speed of a fluid on a pipe with decrease in pressure and in reverse.Abstrak -Eksperimen sederhana ini berjudul analisis pengaruh luas penampang terhadap kecepatan aliran air dengan menggunakan Tabung Venturimeter yang bertujuan untuk mengetahui hubungan antara luas penampang, Kecepatan aliran air dan ketinggian air pada pipa kapiler serta untuk mengetahui prinsip dasar hukum Bernoulli dan penerapannya dalam rangkaian sederhana. Kegiatan yang dilakukan adalah membaca ketinggian air pipa kapiler yang disebabkan dari perubahan laju aliran air dimulai dari deras, sedang dan rendah. Kemudian menganalisis data yang diperoleh untuk setiap perubahan laju aliran air yang dimulai dari menghitung perbedaan ketinggian air pipa kapiler pada pipa besar dan pipa kecil setelah itu mencari kecepatan aliran fluida pada kedua pipa. Berdasarkan analisis data diperoleh hubungan antara luas penampang, kecepatan aliran air dan ketinggian air pada pipa kapiler yakni semakin besar luas penampang pipa maka kecepatan aliran air pada pipa semakin kecil dan ketinggian air pada pipa kapiler semakin tinggi. Hal ini sesuai dengan bunyi asas Bernoulli yang menyatakan bahwa semakin besar kecepatan fluida dalam suatu pipa maka tekanannya makin kecil dan sebaliknya makin kecil kecepatan fluida dalam suatu pipa maka semakin besar tekanannya.
The purpose of this study was to develop teaching aids of blackbody radiation experiment and practicum devices based on modified free inquiry which are valid and reliable. This teaching aids was designed to demonstrate the relationship between the intensity of radiation and the absolute temperature of a blackbody (the law of Stefan-Boltzmann). The principle of this experiments is the amount of current will flow from the voltage source and enter to the black box. The black box will absorb and emit radiation. There is a nichrome wire inside the black box that will be light up, heat and emit radiation when electrically flowed. The emitted heat will be measured by temperature sensors using thermocouple located outside the black box. Based on experts and practitioner evaluation, the developed teaching aids of blackbody radiation experiment and practicum devices based on modified free inquiry were found to be valid, and reliable. The results of the experiment showed that the intensity of blackbody radiation was directly proportional to its temperature. This result is consistent with the law of Stefan-Boltzmann. Furthermore, the average of students’ perception of the developed teaching aids and practicum devices of blackbody radiation are 74.92% (good) and 80.17% (very good) respectively. This indicates that the teaching aids and practicum devices that have been developed can be used to demonstrate and prove the modern physics concepts related to blackbody radiation.Keywords: Teaching Aids, Stefan-Boltzmann’s law, Blackbody RadiationPenelitian ini bertujuan untuk mengembangan alat peraga eksperimen radiasi benda hitam dan perangkat praktikum fisika berbasis modified free inquiry yang valid dan reliabel. Alat peraga tersebut dirancang untuk mendemonstrasikan hubungan antara intensitas radiasi benda hitam dengan suhu mutlak yang dipancarkannya (Hukum Stefan-Boltzmann). Prinsip kerja dari alat peraga tersebut adalah arus akan mengalir dari sumber tegangan dan masuk ke dalam kotak lubang hitam. Kotak ini berfungsi untuk menyerap dan memancarkan radiasi. Di dalam kotak terdapat kawat nicrom yang akan menyala dan memancarkan radiasi ketika dialiri arus listrik. Panas yang dipancarkan akan diukur oleh termokopel radiasi yang berada di luar kotak. Berdasarkan penilaian validator, alat peraga eksperimen radiasi benda hitam dan perangkat praktikum fisika berbasis modified free inquiry yang telah dikembangkan dinyatakan valid dan reliabel. Hasil uji coba menunjukkan bahwa intensitas radiasi yang dipancarkan oleh benda hitam berbanding lurus dengan temperaturnya yang sesuai dengan hukum Stefan-Boltzmann. Selanjutnya, rata-rata persepsi praktikan terhadap alat peraga eksperimen radiasi benda hitam dan perangkat praktikum yang telah dikembangkan secara berturut-turut adalah 74,92% (baik) dan 80,17% (sangat baik). Hal ini mengindikasikan bahwa alat peraga dan perangkat praktikum yang telah dikembangkan dapat digunakan untuk mendemonstrasikan dan membuktikan konsep-konsep fisika modern yang berhubungan dengan radiasi benda hitam.Kata kunci: Alat Peraga, Hukum Stefan-Boltzmann, Radiasi Benda Hitam
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