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Omega: Jurnal Fisika dan Pendidikan Fisika
Published by Universitas Muhammadiyah Prof. Dr. Hamka
ISSN : -     EISSN : -     DOI : -
Core Subject : Science, Education,
Education Physics
Arjuna Subject : -
Articles 5 Documents
 1 
Search results for , issue "Vol 4 No 2 (2018)" : 5 Documents clear
Introducing Undergraduate Students to Nonlinear Dynamics through A Numerical Approach Nugroho, Fahrudin; Azhari, Irfan Taufiq; Yusuf, Yusril; Nurwantoro, Pekik
Omega: Jurnal Fisika dan Pendidikan Fisika Vol 4 No 2 (2018)
Publisher : Program Studi Pendidikan Fisika UHAMKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31758/OmegaJPhysPhysEduc.v4i2.45

Abstract

This paper describes a numerical method that used to solve the nonlinear Schr\"{o}dinger equation. The methods are an exponential time differencing method and a spectral method. The result indicates that at a certain parameter, fluctuation of wave function has contained chaotic dynamics. This case is expected to be used as an example for introducing numerical methods to undergraduate students on nonlinear dynamics. This introduction is deemed necessary, referring to the curriculum and syllabus used in several educational institutions in various countries that have included the topic of nonlinearity.
Analysis Optical Properties of Carbon Dots from Paper Flowers (Bougainvillea spectabilis) Ramlan, Nurul Mutmainnah; A'yun, Arini Qurrata; Putri, Radha Hartina; Fatimah, Siti; Isnaeni, .; Tahir, Dahlang
Omega: Jurnal Fisika dan Pendidikan Fisika Vol 4 No 2 (2018)
Publisher : Program Studi Pendidikan Fisika UHAMKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31758/OmegaJPhysPhysEduc.v4i2.30

Abstract

Synthesized carbon dots (CDs) from paper flowers (Bougainvillea spectabilis) was performed by microwave assisted. CDs were characterized by ultraviolet visible light (UV-Vis), photoluminescence (PL) and time resolved luminescence (TRPL). PL data shows wavelength intensity of CDs paper flowers at 493 nm for 3.9 ns and 512 nm for 4.2 ns respectively for purple and white paper flowers that excited at 420 nm. The absorbance for CDs white paper flower at 262 nm and 350 nm, while CDs purple flower paper at 260 nm, 324 nm, and 530 nm. CDs from paper flower shows excellent optical properties. So, it is mean that method applied to this experiment effectively, cheap and eco-friendly for synthesis CDs from paper flower.
Development of Portfolio Assessment Tools through A Scientific Approach for the Advancement of Education Kusumaningtyas, Dian Artha
Omega: Jurnal Fisika dan Pendidikan Fisika Vol 4 No 2 (2018)
Publisher : Program Studi Pendidikan Fisika UHAMKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31758/OmegaJPhysPhysEduc.v4i2.35

Abstract

Assessment is an important component in the implementation of education. Efforts to improve the quality of education can be pursued through improving the quality of learning and the quality of the assessment system. Assessment must include cognitive, affective, and psychomotor aspects. This study aims to produce a portfolio with a scientific approach that can assess three aspects, namely cognitive, affective, and psychomotor aspects. Advancement of education needs to be thoroughly designed from the planning, implementation, and evaluation stages of learning. Assessment methods that are carried out include research and development using the ADDIE model (Analysis, Design, Development, Implementation, Evaluation). Then, the product is validated by material expert lecturers, media experts, assessment experts, and teachers. The result of product feasibility testing in the form of portfolios are stated to be good and very good and it can be concluded that based on the expert validator's assessment, the product developed is stated to be suitable for use.
The Effect of Multimedia-Based 3D Flipbook Learning Media on Physics Learning Outcomes of 11th Science Grade Students in Work and Energy Subjects Robayat, Atmamu
Omega: Jurnal Fisika dan Pendidikan Fisika Vol 4 No 2 (2018)
Publisher : Program Studi Pendidikan Fisika UHAMKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31758/OmegaJPhysPhysEduc.v4i2.37

Abstract

Research on the effect of using multimedia-based 3D flipbook learning media on physics learning outcomes of 11th science grade students in work and energy subjects has been carried out. This research is based on problems in education, especially the use of multimedia learning in the subject of work and energy in physics. Research conducted at SMA PGRI 109 Tangerang using the experimental design method in the form of posttest only with 48 students as samples that divided into 2 groups of classes, experimental class and control class.Based on the results of the analysis on the prerequisite test, using Chi Square test, the estimated results: from the experimental class and the control class, $X_\text{count} < X_\text{table}$; with a significant level of $\alpha=0.05$, it means the research class, experimental class, and control class, are normally distributed. For the homogeneity test using the Fisher test obtained $F_\text{count} < F_\text{table}$, which is equal to $1.017 < 2.069$, then the research class is homogeneous distribution. In the last stage, hypothesis testing was performed by $t$-test and the result was $t_\text{count} = 8.621 > t_\text{table(0.05)} = 2.014$; which means $H_0$ is rejected. Based on the calculation of the hypothesis test, it can be concluded that there is the effect of the use of multimedia-based 3D flipbook learning media on physics learning outcomes for students of 11th science grade in work and energy subjects.
Basic Physics Learning Application Based on Value Use the Scientific Method to Improve Cognitive Abilities and Retention of College Student Suminten, Nyai
Omega: Jurnal Fisika dan Pendidikan Fisika Vol 4 No 2 (2018)
Publisher : Program Studi Pendidikan Fisika UHAMKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31758/OmegaJPhysPhysEduc.v4i2.40

Abstract

This research aims to get an overview of the differences in the increase in cognitive abilities and retention of college students who get basic physics learning based on value use scientific methods and without use scientific methods, and get an overview of the relationship between retention and cognitive abilities of college students who get basic physics learning based on value use scientific methods. The research conducted use a quasi-experimental method with a randomised control group design pretest-posttest design. The population is all college students of the Physics Education Study Programme 2016-2017 odd semester at one of the Private Universities in Jakarta. Samples of two classes selected by cluster random sampling. The results showed that there was an increase in cognitive abilities and retention of college students in both classes. However, the magnitude of the increase in the experimental class was more significant than the control class. The normalised gain average score for cognitive abilities in the experimental class is 0.78 which meets the high criteria, and in the control class is 0.65 which meets the criteria of being. While the normalised gain average score for student retention resistance in the experimental class is 0.68 which meets the criteria of being, and the control class is 0.47 which meets the criteria of being. Based on the average difference test, at the 95% confidence level, the results of the study show that value-based basic physics learning using scientific methods can significantly improve cognitive abilities and college student retention resistance. In addition, the results of the study also showed that there was a strong and significant relationship between cognitive abilities and student retention resistance with a correlation value of 0.63.

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