cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota adm. jakarta timur,
Dki jakarta
INDONESIA
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 3 No 2 (2017)" : 5 Documents clear
Effect of Task Through Test Rankings Based Learning Model REACT to the Achievement of Physics Amirudin, Dessy; Kusdiwelirawan, A.; Soenarto, Y.
Omega: Jurnal Fisika dan Pendidikan Fisika Vol 3 No 2 (2017)
Publisher : Program Studi Pendidikan Fisika UHAMKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31758/OmegaJPhysPhysEduc.v3i2.31

Abstract

The aim of this study is to find out the effect of test-based on the ranking task through the learning model of REACT (relating, experiencing, applying, cooperating, and transferring) toward physics learning achievement. The research is held in 105 Senior High School in Jakarta on the even semester of 2015-2016. The population in this research is around 32 students roommates are all investigated. The sampling technique that use is purposing sampling technique. This research use quantitative research. After the data is distributed normally and the homogeneity based on the normality test and homogeneity, the data that is gained the lcount < ltable (0.11 < 0.156). The hypothesis test is done by using the t-test and the result tcount > ttable (8.575 > 1.689) (on the 0.05 significant extent) or 8.575 > 2.456 (on the 0.01 significant extent) which means H0 is rejected, H1 is therefore accepted. All in all this research could bring the effect of test-based on the ranking task learning model through the REACT toward physics learning achievement.
The Influence of Guided Inquiry Student Worksheet on Learning Outcomes and Science Process Skill on the Static Fluid Topic Falamy, Ryna Aulia; Suyatna, Agus; Wahyudi, Ismu
Omega: Jurnal Fisika dan Pendidikan Fisika Vol 3 No 2 (2017)
Publisher : Program Studi Pendidikan Fisika UHAMKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31758/OmegaJPhysPhysEduc.v3i2.35

Abstract

The purpose of this research is to know the influence of guided inquiry student worksheet on learning outcomes and describe learning outcomes and science process skill after using guided inquiry student worksheet. This research method was true experiment, with a sample grade of VIII H as a control class and VIII J as an experimental class, determined by purposive sampling technique. The study design used pretest-postest control group design. The data had been tested by using N-gain analysis, normality test, homogeneity test, and independent t-test. The results showed a significant effect of the use of guided inquiry student worksheet to the results of student learning outcomes. The average learning outcomes in cognitive domain of 85.24 and the improved learning outcomes with N-gain 0.81.
Resonance Contributions to $\eta$ Photoproduction on the Nucleon in the Isobaric Model Burhendi, Feli Cianda Adrin
Omega: Jurnal Fisika dan Pendidikan Fisika Vol 3 No 2 (2017)
Publisher : Program Studi Pendidikan Fisika UHAMKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31758/OmegaJPhysPhysEduc.v3i2.40

Abstract

The contributions of the resonances $S_{11}(1535)$, $S_{11}(1650)$, and $P_{11}(1710)$ to gamma nucleon $\rightarrow$ eta nucleon are found. In order to estimate model dependence of the obtained resonance characteristics, an isobaric models used for analysis. For the resonances considered, our analysis yields mass values compatible with those advocated by the Particle Data Group. We emphasise, however, that cross-section data alone are unable to pin down the resonance parameters and it is shown that the beam and or target asymmetries impose more stringent constraints on these parameter values. The amplitude transitions of Feynman diagrams at the center of mass frame used to find amplitude squares involving the s-channel, u-channel, and t-channel on Born term and resonance. The value of the differential cross section on the energy system used by 1.685 MeV up to 2.795 MeV.
Microwave Absorber Properties \ce {La_{0.67}Sr_{0.33}Mn_{0.8}Ni_{0.2}O3} Using Sol Gel Synthesis Methods Laksanawati, Wahyu Dian; Kurniawan, Budhy
Omega: Jurnal Fisika dan Pendidikan Fisika Vol 3 No 2 (2017)
Publisher : Program Studi Pendidikan Fisika UHAMKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31758/OmegaJPhysPhysEduc.v3i2.47

Abstract

This paper reports the process and the results are supplemented by material microwave absorber characterisation \ce {La_{0.67}Sr_{0.33}Mn_{0.8}Ni_{0.2}O3} which has been synthesised by sol gel method. Results refinement of the XRD data showed that the material \ce {La_{0.67}Sr_{0.33}Mn_{0.8}Ni_{0.2}O3} have formed a single phase. From the results of using the software refinement High Score obtained crystal size on sample of 21.18 nm. Number of spin concentration in the sample at ESR test results showed a decrease when doping Ni increased, the area under the curve of absorption decreases as 388.718. This is due to the substitution of \ce {Ni^{2+}} ions \ce {Mn^{3+}} ions thus inhibiting electron hopping of electrons $\mathrm{e_g}$ (\ce {Mn^{3+}} ion) to $\mathrm{t_{2g}}$ (\ce {Mn^{4+}} ion) in the mechanism of double exchange so that the spin of the electrons will $\mathrm{t_{2g}}$ antiparallel. Competition between ferromagnetic properties with antiferromagnetic spin make will change the direction so that the sample magnetisation will decrease and the magnetic moments become random. ESR results are used to confirm the results of the VNA. Microwave absorption ability is indicated by the value of reflection loss on the sample is $-66.67$ dB.
Preparation and Synthesis of Micro-Sized Carbon Material from Coconut Shell with Variation of Material Mixing Time Using a Blender for Fe Filtration of Mataram Canal Water Hastuti, Irnawati Widya; Andriani, Nur Baeity; Pratama, Buki Wahyu; Dwandaru, Wipsar Sunu Brams
Omega: Jurnal Fisika dan Pendidikan Fisika Vol 3 No 2 (2017)
Publisher : Program Studi Pendidikan Fisika UHAMKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31758/OmegaJPhysPhysEduc.v3i2.50

Abstract

This study aims to synthesis micro-sized carbon material from coconut shell leftovers or wastes using piezoelectric-based ultrasonication in liquid phase. The micro-sized carbon material produced is then utilized as a filtration material for Mataram canal water in Yogyakarta. This study begins with synthesizing the micro-sized carbon material by mixing i) mashed coconut shells, ii) 100 ml distilled water, and iii) 2 grams of detergent into a blender. The aforementioned materials are blended with mixing time variation of 30 minutes and 60 minutes. The resulted solution is left alone for a night and then ultrasonicated for 4 hours. The solution is then characterized using UV-Vis spectrophotometer. The sediments obtained from the carbon materials are characterized using X-ray diffraction (XRD) for each mixing time variation whereas scanning electron microscopy (SEM) is conducted upon the micro-sized carbon material with 60 minutes mixing time. The solution and the sediment is poured onto a filter paper, heated until dry, and fitted to a simple filtration device. Water from Mataram canal is used to test the Fe filtration ability of the micro-sized carbon material. The water samples before and after filtration are characterized using atomic absorption spectroscopy (AAS). The UV-Vis results show that increasing the mixing time of material, increases the absorbance value. Based on XRD results the synthesized micro-sized carbon material from coconut shell has an amorphous phase. The SEM result at 60 minutes of mixing time looks like an irregular bulk material with sizes of about 1 $\mu$m to 12 $\mu$m with thicknesses of around 0.6 $\mu$m to 0.8 $\mu$m. The AAS results indicate that the longer the mixing time, the lower the Fe content in the water samples after filtration.

Page 1 of 1 | Total Record : 5

 1 

Filter by Year

2017 2017


Reset
Filter By Issues
All Issue Vol 5 No 2 (2019) Vol 5 No 1 (2019) Vol 5 No 1 (2019) Vol 4 No 2 (2018) Vol 4 No 2 (2018) Vol 4 No 1 (2018) Vol 3 No 2 (2017) Vol 3 No 1 (2017) Vol 2 No 2 (2016) Vol 2 No 1 (2016) Vol 1, No 2 (2015) Vol 1 No 2 (2015) Vol 1 No 1 (2015) Vol 1, No 1 (2015) More Issue