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Jurnal Pendidikan Fisika dan Keilmuan (JPFK)
Published by Universitas PGRI Madiun
ISSN : 24428868     EISSN : 2442904X     DOI : -
Core Subject : Science, Education,
Astronomy Education Physics
Jurnal Pendidikan Fisika dan Keilmuan (JPFK) with registered number ISSN 2442-8868 (printed), ISSN 2442-904X(online) is scientific journals which publish articles from the fields of physics and physics education. JPFK will publish in two times issues Volume 1, Numbered: 1-2 are scheduled for publication: March and September.
Arjuna Subject : -
Articles 127 Documents
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REGULARIZATION PHASE AND AUXILIARY POTENTIAL TO MAINTAIN ADIABATIC QUANTUM DYNAMICS AT DELTA FUNCTION POTENTIAL
Jurnal Pendidikan Fisika dan Keilmuan (JPFK) Vol 9, No 2 (2023)
Publisher : UNIVERISTAS PGRI MADIUN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/jpfk.v9i2.18405

Abstract

Spectrum of kinetic energy of electrons of Helium ions in functions Radial Schrodinger waves on quantum numbers (n ≤ 3)
Jurnal Pendidikan Fisika dan Keilmuan (JPFK) Vol 10, No 1 (2024)
Publisher : UNIVERISTAS PGRI MADIUN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/jpfk.v10i1.19715

Abstract

The Schrodinger equation is an equation that describes the properties of a wave. The Schrodinger equation is solved using a variable separation method that produces a wave function. The wave function using the variable separation method is divided into 2 parts, namely the radial part and the angular part. The energy spectrum states the energy levels of electrons. Energy spectrum and wave function are related to each other. The energy level in the Schrodinger wave function in the form of kinetic energy is the energy for electrons to move from one point to another. The research aims to describe the kinetic energy spectrum of electrons in the radial wave function. The type of research used is basic research, namely the development of existing theories. The result obtained is a radial wave function with a certain quantum number n and an integrated Laplace constant that can produce electron kinetic energy, namely by integrating the wave function with each quantum number. The kinetic energy has its own value according to the quantum number. Kinetic energy in quantum numbers (n = 1,l = 0, Ek =171.18 eV ; n =2,l = 0, Ek =399.09 eV n =2,l = 1, Ek =152.16 eV n =3,l = 0, Ek =5096.81 eV n =3,l = 1, Ek =81142.43 eV n =3,l = 2, Ek =21.979 eV). The conclusion of this research is that the kinetic energy spectrum of electrons produces a directly proportional relationship to the quantum number n, where the greater the quantum number n, the greater the spectrum or kinetic energy level of the electron.
THE ANGULAR WAVE FUNCTION OF HELLIUM ION (4 2 He+) IN MOMENTUM SPACE AT n ≤ 3
Jurnal Pendidikan Fisika dan Keilmuan (JPFK) Vol 8, No 2 (2022)
Publisher : UNIVERISTAS PGRI MADIUN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/jpfk.v8i2.18540

Abstract

Helium Ion (4 2 He+) is an example of a hydrogenic atom, as it consists of 2 protons and 2 neutrons forming a nucleus and only has an orbital electron. In daily life, hydrogen atoms are widely used in human life. The electron wave function in hydrogenic atoms is a combination of the radial wave function and the angular wave function, which is a solution to the Schrodinger equation. The wave function can also be expressed in momentum space by performing Fourier transform of the wave function in position space. This study aims to determine the angular wave function of Helium Ion in momentum space and its probability density at n ≤ 3. The results showed that the angular wave function and electron probability density on the Helium atom have the same function and illustration as the hydrogenic atom both in position space and in momentum space
HOTS Measured by Cognitive Learning Outcomes (CLO) Inventory Based Education for Sustainable Development as a Media for Students Skills Analysis
Jurnal Pendidikan Fisika dan Keilmuan (JPFK) Vol 10, No 1 (2024)
Publisher : UNIVERISTAS PGRI MADIUN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/jpfk.v10i1.19705

Abstract

This study aims to develop an ESD-based cognitive learning outcomes instrument in measuring students' higher order thinking skills. This research is a R&D. The data in this study are qualitative and quantitative data from limited trials to fifty twelfth grade students. Quantitative data were analysed using SPSS and Rasch model, the results of validity analysis using SPSS and Rasch model showed nine items on the instrument, except item number 1 is valid because it has met 1 of the 3 criteria for item fit order following 0.50 < MNSQ < 1.5; -2.0 < ZSTD < +0.2 and 0.4 < Pt Mean < 0.85. The results of instrument reliability analysis using SPSS showed 0.716 while person reliability and item reliability from Rasch analysis showed 0.64 and 0.77 respectively. Analysis of students' worksheets shows that the presentation of students' answers is still in an incorrect position so it concluded that students have not been able to link the real experiences they have with issues that occur in the real world, besides that the results of the analysis of students' worksheets also show that more than 45% of students are still at a low level of thinking, especially on issues related to SDG’s.
The Effect Of Annealing Temperature On The Properties Of Thin Zno Films Deposited Using Microwave-Assisted Spray Pyrolysis System
Jurnal Pendidikan Fisika dan Keilmuan (JPFK) Vol 10, No 1 (2024)
Publisher : UNIVERISTAS PGRI MADIUN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/jpfk.v10i1.19813

Abstract

This research aims to determine the optimal annealing temperature for the production of ZnO thin films using the microwave-assisted spray pyrolysis method. In the ZnO growth process, a high microwave temperature was used, with a spray pressure of 20 kg/m2, a nozzle distance of 12 cm, 3 layers, a spray duration of 5 seconds, and a 1-minute interval between layers. Annealing temperature variations included 300°C, 350°C, 400°C, 450°C, 500°C, 550°C, and 600°C. SEM results indicated that the best morphology was achieved at 400°C, with the smoothest and least cracked surface. EDX results showed the highest ZnO composition percentage at 450°C, which was 93.61%.The optical properties obtained from UV-Vis spectroscopy revealed the lowest absorption in the visible light wavelength range (400-700 nm) at an annealing temperature of 450°C. Furthermore, the highest transmittance and the lowest bandgap were observed at an annealing temperature of 450°C, measuring 90.77% and 3.00 eV, respectively. Crystal property analysis from XRD data revealed that all samples had a hexagonal wurtzite structure. The best crystal index was achieved at 450°C, with a value of 81.899%. Increasing the annealing temperature improved the crystal properties, as evidenced by a decreasing full width half maximum (FWHM) until 450°C, which was 0.476°.
Identification Of Sub-Surface Rock Structures In The Banyu Biru Hot Springs Area Using The Gravity Method
Jurnal Pendidikan Fisika dan Keilmuan (JPFK) Vol 10, No 1 (2024)
Publisher : UNIVERISTAS PGRI MADIUN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/jpfk.v10i1.19027

Abstract

One of the geothermal manifestations in Nganjuk is the Banyu Biru hot spring in Gondangwetan Village, Jatikalen District, Nganjuk regency. This hot spring was discovered by accident when drilling a well to be used as a rice field flow, but the water that came out was hot water with a temperature of 37 oC at a depth of 250-300 m. This study aims to determine local anomaly patterns and lithological structures of subsurface rocks in the Jatikalen hot spring area. The research method used is the gravity method based on GGMPlus satellite data obtained as many as 100 data with a distance of 200 m between points. Based on the qualitative analysis of the local anomaly contours, the low anomaly was -2.6 mGal to -0.8 mGal, the moderate anomaly was -0.6 mGal to 2.2 mGal, and the high anomaly was 0.6 mGal – 2.2 mGal. Quantitative interpretation with the results of the cross-sectional model resulted in 5 layers of topsoil with a density value of 1.2 grams/cm3. In the second layer is alluvium in the form of gravel, gravel, sand with a density of 1.7 grams/cm3. The third layer is tuffaceous clay with a density of 2 grams/cm3 and the fourth layer is calcareous tuff with a density value of 2.67 grams/cm3. While the last in the fifth layer is breccia rock with a density value of 3 grams/cm3.
Uncertainty of Helium Ion Momentum (????????+) by Using the Heisenberg Uncertainty Approach on Quantum Numbers ???? ≤ ????
Jurnal Pendidikan Fisika dan Keilmuan (JPFK) Vol 10, No 1 (2024)
Publisher : UNIVERISTAS PGRI MADIUN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/jpfk.v10i1.20323

Abstract

This study aims to find the uncertainty value of Helium Ion Momentum (????????+) by using the Heisenberg Uncertainty Approach to Quantum Numbers ???? ≤ 3. This type of research uses non-experimental research. The research was conducted by developing previously existing theories. This research is to calculate the expectation value of the position to find out how often electrons can appear, and determine the uncertainty of the momentum of Helium Ion (????????+) by using the Heisenberg uncertainty approach at number ???? ≤ 3. Based on the results and discussion, it can be concluded that the uncertainty of helium ion momentum (????????+) by using the Heisenberg uncertainty approach to quantum numbers ???? ≤ 3. The uncertainty of helium ion momentum is influenced by the main quantum number (n) and the azimuthal quantum number (l). By entering the values of n and l, the results can be obtained at quantum numbers ???? = 1 with ???? = 0 obtained ∆???????? = 2,977504663 × 10−24. At the quantum number ???? = 2 with ???? = 0 obtained ∆???????? = 8,06312759 × 10−24 and ???? = 1 obtained ∆???????? = 2,03048 × 10−23. At the quantum number ???? = 3 with ???? = 0 obtained ∆???????? = 1,50366086 × 10−23, and ???? = 1 obtained ∆???????? = 3,481407588 × 10−23 and ???? = 2 obtained ∆???????? = 4,47363642 × 10−22. Based on these results, it can be concluded that the uncertainty value of momentum is getting bigger as the two values of n and l increase. This is also proven by using simulation and the results of momentum uncertainty are not much different and only a difference of a few decimal places.

Page 13 of 13 | Total Record : 127

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