JURNAL PEMBELAJARAN FISIKA
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Pendekatan Ketidakpastian Heisenberg dalam Menentukan Momentum dan Spektrum Energi Atom Deutrium pada Bilangan Kuantum Utama n=4
Full text linkDeuterium adalah isotop atom hidrogen yang memiliki struktur sederhana dan memiliki sifat kuantum yang sama dengan atom hidrogen. Dalam hal ini solusi persamaan yang akan digunakan sebagai solusi adalah persamaan Schrodinger dari koordinat bola. Posisi elektron dalam atom tidak dapat ditentukan dengan pasti, tetapi kita dapat menentukan probabilitas dengan menggunakan fungsi radial atom deuterium. Tujuan dari penelitian ini adalah pendekatan ketidakpastian Hesenberg dalam menentukan momentum dan spektrum energi atom deuterium n=4. Jenis penelitian ini adalah penelitian non eksperimen berupa pengembangan teori yang ada. Hasil penelitian ini meliputi (1) data distribusi probabilitas, ekspektasi, ketidakpastian momentum, dan simulasi keluaran grafik ketidakpastian momentum atom deuterium tergantung pada bilangan kuantum utama dan azimuth-nya, (2) data distribusi spektrum energi n≤4. Semakin besar nilai bilangan kuantum utama dan azimuth-nya akan mengakibatkan peningkatan nilai ketidakpastian momentumnya dan mengakibatkan penurunan nilai ketidakpastian posisinya, sehingga semakin akurat pengukuran posisi akan menghasilkan pengukuran momentum yang lebih tidak akurat. Data yang diperoleh menunjukkan bahwa semakin besar tingkat energinya, maka energi atom Deutrium yang diperoleh akan semakin kecil. Ini karena semakin banyak lintasan kulit atom akan menghasilkan lebih sedikit energi
PENGARUH MODEL PROJECT BASED LEARNING DALAM PEMBELAJARAN TEORI KINETIK GAS TERHADAP KETERAMPILAN BERPIKIR TINGKAT TINGGI SISWA DI SMAN 5 JEMBER
Full text linkFisika dianggap pelajaran yang sulit dan kurang menarik. Namun pada kenyataannya siswa sering beranggapan bahwa fisika adalah mata pelajaran yang sulit dan kurang menarik. Hal ini disebabkan oleh banyaknya rumus dalam menyelesaikan soal fisika sehingga membuat siswa bingung untuk menentukan rumus mana yang akan digunakan untuk menyelesaikan soal tersebut. Penelitian ini bertujuan untuk menguji pengaruh signifikan penerapan model pembelajaran berbasis proyek terhadap keterampilan berpikir tingkat tinggi dalam menganalisis konsep teori kinetik gas. Jenis penelitian ini menggunakan desain penelitian posttest only control group design. Berdasarkan penelitian yang dilakukan, ditemukan bahwa model pembelajaran berbasis proyek berpengaruh signifikan terhadap kemampuan berpikir tingkat tinggi siswa dalam menganalisis konsep teori kinetik gas.
Kata Kunci: Fisika, HOT
PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING BERBANTUAN E-LKPD TERHADAP AKTIVITAS DAN HASIL BELAJAR SISWA SMA POKOK BAHASAN BESARAN DAN SATUAN
No full textPenelitian ini bertujuan untuk mengetahui pengaruh penerapan model pembelajaran PBL berbantuan E-LKPD terhadap aktivitas dan hasil belajarserta respon siswa setelah pembelajaran menggunakan model PBL berbantuanE-LKPD pada pokok bahasan besaran dan satuan. Jenis penelitian ini adalaheksperimen. Populasi penelitian ini adalah kelas X SMA Negeri 2 Jember tahunajaran 2022/2023 dengan menggunakan dua sampel penelitian yaitu kelaskontrol dan kelas eksperimen. Penelitian ini menggunakan uji normalitas danjika data terdistribusi normal akan dilanjutkan dengan uji hipotesismenggunakan uji independent sampel t test, sedangkan jika data tidakterdistribusi normal maka akan dilakukan uji hipotesis menggunakan mannwhitney u. Setelah dilakukan analisis data diperoleh hasil untuk aktivitas belajardilakukan uji t dan menghasilkan signifikan sebesar 0,000 yang artinya tesdinyatakan signifikan dan untuk hasil belajar dilakukan uji mann whitney ukarena data tidak terdistribusi normal dan didapatkan hasil signifikan sebesar0,000 yang artinya tes dinyatakan signifikan. Hasil penelitian dapat disimpulkanterdapat pengaruh model PBL berbantuan E-LKPD terhadap aktivitas dan hasilbelajar siswa SMA pada pokok bahasan besaran dan satuan
IMPLEMENTASI TEOREMA PHYTAGORAS DALAM PENYELESAIAN SOAL RANGKAIAN AC UNTUK MENINGKATKAN HASIL TES SISWA SMA
Full text linkAlternating current circuits are one of the physics taught in senior high school. Alternating current (AC) circuits are material related to mathematical equations so that to study this material students must have good mathematical abilities. This research will discuss the improvement of test results for AC circuit material, especially in the RL series, RC series, and RLC series using an alternative method in the form of the Pythagorean theorem on the impedance and voltage equations. This is because the Pythagorean theorem has a mathematical equation that is identical to the impedance and voltage equations in AC circuits. This research was conducted at SMAN 2 Jember using two classes, namely XII MIPA 5 and XII MIPA 7 classes. Based on the research that has been done, the result is an increase in test results in class XII MIPA 5 of 0.54 in the medium category and an increase in test results in class XII MIPA 7 of 0.30 in the medium category. Therefore student responses indicate that the Pythagorean theorem can attract students' interest, provide motivation with positive student responses and students are satisfied in applying it in solving AC circuit problems
PENGARUH STRATEGI PEMBELAJARAN BERDIFERENSIASI TERHADAP MINAT DAN HASIL BELAJAR PESERTA DIDIK
Full text linkThis research aims to determine the interests and learning outcomes of students. The research method is quasi experimental design whose research sample is class XI MIPA 2 as an experimental class and the control class, namely class XI MIPA 1. Analysis of learning interest questionnaire data using percentage formulas and learning outcomes are normality test, homogeneity test, hypothesis test, and regression test. The research instrument used observation sheets, study interest questionnaires and multiple-choice questions. The results of the data analysis showed that the average learning interest of experimental class students from the total number of indicators was included in the very high category of 81.25 and the learning outcome data obtained were analyzed using a one-party t-test with α= 0.05 obtained tcount = 2.66 and ttable = 1.66 where tcount was greater than ttable which indicated that there was a difference in posttest in the two classes. Differentiated learning strategies are expected to be able to create effective learning and answer the diverse learning needs of students and their potential can develop so that students have freedom in learning.
Keywords: differentiated learning strategies, learning interests, learning outcomes
PENGELOLAAN LABORATORIUM FISIKA SMA DI KOTA SAMARINDA PADA ERA DIGITAL
Full text linkThe problem in this study is how to manage the physics laboratory at A Samarinda Senior High School and B Samarinda Senior High School. The purpose of this study was to find out and describe the management of physics laboratories in A Samarinda Senior High School and B Samarinda High School. This study used descriptive research with data collection techniques carried out by means of documentation and interviews. The results of this study generally concluded that the management of physics laboratories at A Samarinda Senior High School and B Samarinda High School is quite good and supports physics learning. This can be seen from the laboratory planning that has been carried out optimally even though there are still many limitations, the implementation of the planning has been done well
INSTRUMEN PENILAIAN FORMATIF BERBASIS HOTS PENGUKUR KEMAMPUAN BERPIKIR KRITIS SISWA SMA (POKOK BAHASAN TEORI KINETIK GAS)
Full text linkThis study aims to determine the validity of the HOTS assessment instrument, the reliability of the HOTS assessment instrument from the test instrument. The test was carried out in class XII MIPA 7 and XII MIPA 8 at SMA Negeri 2 Jember in the even semester. The instrument used in this research is in the form of 20 essay questions on the kinetic theory of gases. This research is a descriptive study using a quantitative approach through ADDIE modeling. The results showed that the average value of the level of validity was 91.11% and the value of the degree of reliability coefficient r11 was 0.9156. The results showed that the results of the analysis of the level of difficulty of the items contained 14 items that were feasible or acceptable and 6 items that were not feasible because they had a level of difficulty that was not in accordance with the criteria for the level of difficulty of the items that were good and the results of the analysis of the distinguishing power of the items, where The results of the analysis show that there are 12 items that are suitable for use with some improvement of questions and 8 items that are not suitable to be used because they have distinguishing power in the bad category or do not match the criteria for good discriminating power. The results showed that students' critical thinking skills in solving physics problems on gas kinetic theory material as measured using the higher order thinking skill (HOTS) test instrument could be categorized as moderate
ANALISIS FREKUENSI BUNYI DAN CEPAT RAMBAT GELOMBANG BUNYI PADA ALAT MUSIK TRADISIONAL ANGKLUNG
Full text linkThe research is motivated by cultural aspects that must be preserved and studied in various scientific fields, including physics. One of the interesting cultural elements to study is the traditional musical instrument, the angklung. This study aims to analyze the frequency and speed of sound waves in angklung. The benefit of this research is to get the cognitive content of science and as a form of cultural preservation of the angklung musical instrument. This type of research is quantitative with experimental methods. Collecting data is by measuring the physical quantities on the angklung. The data analysis technique used is graphical analysis and mathematical calculations. The results obtained are that the length of the angklung tube is inversely proportional to the frequency of the sound produced. Mathematical calculations can get the value of the speed of sound wave propagation according to the closed organ pipe concept. Based on the calculation results, the speed of sound waves in angklung is 340.11 m/s.
Keywords: angklung, frequency of sound, speed of soun
EFEKTIVITAS PENGGUNAAN SIMULASI PHET DALAM PEMBELAJARAN ONLINE TERHADAP HASIL BELAJAR SISWA
Full text linkThis research is a type of descriptive research. This study aims to examine the effectiveness of using PhET simulation in online learning on temperature and heat material based on student learning outcomes. The level of student effectiveness can be known through the results of the Pre-test and Post-test. PhET simulation is a virtual laboratory simulation covering physics, chemistry, mathematics, earth science, and biology. Furthermore, this research was carried out at SMAN 2 Jember from 3 - 6 January 2022 in the even semester of the 2021/2022 academic year. The population in this study were students of class XI IPA SMAN 2 Jember. Prior to sampling, homogeneity test was carried out with the help of the SPSS program. This homogeneity test is used to determine whether the sample data is obtained from a population with homogeneous variance or not. Data on the effectiveness of using PhET simulation in online learning on temperature and heat materials were obtained from test results. it is known that the N-gain score obtained is 0.669. So it can be concluded that the effectiveness of using PhET simulation in online learning on temperature and heat material is in the medium category. Student learning outcomes also increased compared to before using the PhET simulation. Meanwhile, students admitted that they were enthusiastic and not bored so that it was easier for students to understand the material taught by the teacher.
Keywords: effectiveness, PhET simulation, student outcomes, pretest-postest
ANALISIS LOST ENERGY PADA OVERUNITY GENERATOR MAGNET PERMANEN DENGAN PROTOTIPE DINAMO JENIS FLUKS RADIAL: ANALISIS ENERGI YANG HILANG PADA OVERUNITY GENERATOR MAGNET PERMANEN DENGAN PROTOTIPE DINAMO JENIS FLUKS RADIAL
Full text linkThe practice of overunity generators that is developing in the community is quite worrying due to the lack of clear sources of information. The aim of this research is to provide a conceptual overview of the overunity generator through a description of the system and the energy conversion process in the overunity machine. This concept surgery method uses lab tests to get accurate measurement data. By using the modeling of two dynamos connected into a series circuit, the test is carried out by providing electrical energy with different voltage variations to obtain data in the form of output voltage, output current, and rotational speed. The results obtained indicate that there is lost energy in the overunity generator due to the relatively low engine specifications and the limited ability of the motor and generator to convert energy. Where the output generated by the overunity generator has a very large difference compared to the input energy given. Which means that the overunity of the system has not been fully proven in the practice of overunity generators.
Key word: overunity, generator, lost energ