Pub Date : 2023-09-30DOI: 10.19184/jpf.v12i3.37093
Nurul Irfan, Bambang Supriadi, Lailatul Nuraini
Deuterium 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.
{"title":"Pendekatan Ketidakpastian Heisenberg dalam Menentukan Momentum dan Spektrum Energi Atom Deutrium pada Bilangan Kuantum Utama n=4","authors":"Nurul Irfan, Bambang Supriadi, Lailatul Nuraini","doi":"10.19184/jpf.v12i3.37093","DOIUrl":"https://doi.org/10.19184/jpf.v12i3.37093","url":null,"abstract":"Deuterium 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.","PeriodicalId":33966,"journal":{"name":"Gravity Jurnal Ilmiah Penelitian dan Pembelajaran Fisika","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136343956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-30DOI: 10.19184/jpf.v12i3.43462
Trapsilo Prihandono, Agung Supriyono, Ike Lusi Mailina, Ernasari Ernasari
The aim of this research is to determine the effectiveness of using Electronic Student Worksheets (E-LKS) assisted by liveworksheets based on the Problem Based Learning (PBL) model in improving critical thinking skills and learning outcomes. This research is Classroom Action Research with a One Groups Pretest-Posttest Design. The subjects of this research were all 36 students of class XI MIPA 1 SMA Negeri 1 Jember for the 2022/2023 academic year. Data collection for the critical thinking ability variable was obtained through a three-item essay test and for the learning outcome variable through a 15-item multiple choice test. The data obtained was analyzed using the N-Gain formula and the classical completeness formula. Based on the analysis, the N-Gain value for critical thinking skills was 0.531 (medium category) and learning outcomes increased with an N-Gain value of 0.26 (low category) in cycle I and 0.67 (medium category) in cycle II. Based on the results obtained, the use of multi-representation E-LKS assisted by live worksheets based on the PBL model has an effect on critical thinking skills and physics learning outcomes.
本研究的目的是确定使用电子学生工作表(E-LKS)辅以基于问题的学习(PBL)模式的现场工作表在提高批判性思维技能和学习成果方面的有效性。本研究是一组前测后测设计的课堂行动研究。本研究以2022/2023学年MIPA 1 SMA Negeri 1 Jember班36名学生为研究对象。批判性思维能力变量的数据收集是通过三题短文测试获得的，学习成果变量的数据收集是通过15题选择测试获得的。利用n -增益公式和经典完备性公式对得到的数据进行分析。根据分析，批判性思维技能的N-Gain值为0.531(中等类别)，学习成果在第一周期中N-Gain值为0.26(低类别)，在第二周期中N-Gain值为0.67(中等类别)。结果表明，基于PBL模型的多表征E-LKS辅助作业表对学生批判性思维能力和物理学习成果有显著影响。
{"title":"Penerapan E-LKPD Interaktif Berbasis Problem Based Learning Berbantuan Liveworksheets untuk Meningkatkan Kemampuan Berpikir Kritis dan Hasil Belajar Fisika","authors":"Trapsilo Prihandono, Agung Supriyono, Ike Lusi Mailina, Ernasari Ernasari","doi":"10.19184/jpf.v12i3.43462","DOIUrl":"https://doi.org/10.19184/jpf.v12i3.43462","url":null,"abstract":"The aim of this research is to determine the effectiveness of using Electronic Student Worksheets (E-LKS) assisted by liveworksheets based on the Problem Based Learning (PBL) model in improving critical thinking skills and learning outcomes. This research is Classroom Action Research with a One Groups Pretest-Posttest Design. The subjects of this research were all 36 students of class XI MIPA 1 SMA Negeri 1 Jember for the 2022/2023 academic year. Data collection for the critical thinking ability variable was obtained through a three-item essay test and for the learning outcome variable through a 15-item multiple choice test. The data obtained was analyzed using the N-Gain formula and the classical completeness formula. Based on the analysis, the N-Gain value for critical thinking skills was 0.531 (medium category) and learning outcomes increased with an N-Gain value of 0.26 (low category) in cycle I and 0.67 (medium category) in cycle II. Based on the results obtained, the use of multi-representation E-LKS assisted by live worksheets based on the PBL model has an effect on critical thinking skills and physics learning outcomes.","PeriodicalId":33966,"journal":{"name":"Gravity Jurnal Ilmiah Penelitian dan Pembelajaran Fisika","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136344193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This 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.
{"title":"PENGARUH STRATEGI PEMBELAJARAN BERDIFERENSIASI TERHADAP MINAT DAN HASIL BELAJAR PESERTAA DIDIK","authors":"PARLINDUNGAN SITORUS, MARIANA SURBAKTI, PUSPA REALITA GULO","doi":"10.19184/jpf.v12i3.43024","DOIUrl":"https://doi.org/10.19184/jpf.v12i3.43024","url":null,"abstract":"This 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.","PeriodicalId":33966,"journal":{"name":"Gravity Jurnal Ilmiah Penelitian dan Pembelajaran Fisika","volume":"162 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136344191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study aims to determine the impact of local wisdom-based virtual media assisted by smart application creators on optical material on high school students' critical thinking skills. Purposive sampling was used as a research sampling strategy in a quasi experiment and used a nonequivalent control group design. The experimental class set was class XI-MIPA 1, while the control class selected was class XI-MIPA 2. In July 2022, this research was carried out at SMAS PAB 8 Saentis. Students' capacity to think critically was assessed as part of the data collection process. The results of the study show that local wisdom-based virtual media assisted by smart application creators on optical material has an impact on high school students' critical thinking skills. The t test at = 0.05 obtained sig. (2-tailed) is 0.00, the average value of N-Gain in the control class is 0.53, and the experimental class is 0.74. Observations show that this method increases the progress of critical thinking skills in the aspect of drawing conclusions 84.3 %, identifying assumptions 80.4%, reasoning deductively 75.2%, making logical interpretations 65%, and evaluating arguments 88.2%
{"title":"PENGARUH MEDIA VIRTUAL BERBASIS KEARIFAN LOKAL BERBANTUAN SMART APPLICATION CREATOR PADA MATERI OPTIK TERHADAP KEMAMPUAN BERPIKIR KRITIS SISWA SMA","authors":"Irawati Irawati, Nana Mardiana, Sheila Fitriana, Tuti Hardianti, Syahwin Syahwin, Rachmat Rizaldi","doi":"10.19184/jpf.v12i3.41229","DOIUrl":"https://doi.org/10.19184/jpf.v12i3.41229","url":null,"abstract":"This study aims to determine the impact of local wisdom-based virtual media assisted by smart application creators on optical material on high school students' critical thinking skills. Purposive sampling was used as a research sampling strategy in a quasi experiment and used a nonequivalent control group design. The experimental class set was class XI-MIPA 1, while the control class selected was class XI-MIPA 2. In July 2022, this research was carried out at SMAS PAB 8 Saentis. Students' capacity to think critically was assessed as part of the data collection process. The results of the study show that local wisdom-based virtual media assisted by smart application creators on optical material has an impact on high school students' critical thinking skills. The t test at = 0.05 obtained sig. (2-tailed) is 0.00, the average value of N-Gain in the control class is 0.53, and the experimental class is 0.74. Observations show that this method increases the progress of critical thinking skills in the aspect of drawing conclusions 84.3 %, identifying assumptions 80.4%, reasoning deductively 75.2%, making logical interpretations 65%, and evaluating arguments 88.2%","PeriodicalId":33966,"journal":{"name":"Gravity Jurnal Ilmiah Penelitian dan Pembelajaran Fisika","volume":"162 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136344326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Argumentation skill need to be enhanced through contextual problem with integrated STEM (Science, Technology, Engineering, and Mathematics). This study aims to develop worksheet of STEM-EDP based worksheets that focus on students' arguments on the topic of climate change. This research is a Research and Development (R&D) study using the ADDIE model (Analysis, Design, Development, Implementation, and Evaluation) focused on ADD stages. Worksheet designs are prepared by containing STEM indicators accompanied by worksheets that refer to aspects of Toulmin's Argument Pattern. The validity by two lecturers of Physics Education obtained content feasibility aspects (90.00%), linguistic aspects (91.25%), presentation aspects (93.75%), and graphical aspects (83.75%). The conclusion is that STEM-EDP based worksheets fall into the very valid category with a validity value of 89.69%. STEM-EDP based worksheets that focus on students' arguments on the topic of climate change are feasible to implement in classroom learning.
{"title":"ARGUMENTATION SKILL IN STEM-EDP WORKSHEET FOR HIGH SCHOOL STUDENTS: VALIDITY ASPECT","authors":"Remanda Arya Wisutama, Nurul Fitriyah Sulaeman, Zulkarnaen Zulkarnaen","doi":"10.19184/jpf.v12i3.42638","DOIUrl":"https://doi.org/10.19184/jpf.v12i3.42638","url":null,"abstract":"Argumentation skill need to be enhanced through contextual problem with integrated STEM (Science, Technology, Engineering, and Mathematics). This study aims to develop worksheet of STEM-EDP based worksheets that focus on students' arguments on the topic of climate change. This research is a Research and Development (R&D) study using the ADDIE model (Analysis, Design, Development, Implementation, and Evaluation) focused on ADD stages. Worksheet designs are prepared by containing STEM indicators accompanied by worksheets that refer to aspects of Toulmin's Argument Pattern. The validity by two lecturers of Physics Education obtained content feasibility aspects (90.00%), linguistic aspects (91.25%), presentation aspects (93.75%), and graphical aspects (83.75%). The conclusion is that STEM-EDP based worksheets fall into the very valid category with a validity value of 89.69%. STEM-EDP based worksheets that focus on students' arguments on the topic of climate change are feasible to implement in classroom learning.","PeriodicalId":33966,"journal":{"name":"Gravity Jurnal Ilmiah Penelitian dan Pembelajaran Fisika","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136344331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Penelitian ini mengeksplorasi pentingnya persiapan yang matang sebelum memasuki pengalaman lapangan bagi mahasiswa Program Studi Pendidikan Fisika dalam konteks Pengenalan Lapangan Persekolahan (PLP). Tujuan utama penelitian adalah menggali pemahaman mendalam tentang bagaimana kesiapan mental, pedagogis, dan interpersonal mempengaruhi kualitas pengajaran mahasiswa selama PLP. Pendekatan studi kasus digunakan untuk mengeksplorasi pengalaman dan pandangan mahasiswa yang terlibat dalam PLPP. Melalui wawancara mendalam dan analisis konten, penelitian ini mengungkapkan kompleksitas faktor-faktor yang membentuk tingkat kesiapan mereka dan bagaimana hal tersebut memengaruhi praktik pengajaran. Temuan menyoroti pentingnya pembekalan yang komprehensif dalam aspek kesiapan sebelum terjun ke lapangan. Implikasi dari penelitian ini adalah perlunya pendekatan yang holistik dalam mempersiapkan mahasiswa PPL Pendidikan Fisika, memastikan bahwa mereka memiliki keterampilan dan kesiapan emosional yang cukup untuk menghadapi tantangan dunia nyata dalam mengajar. Berdasarkan hasil penelitian dapat diketahui bahwa, terdapat beberapa kekurangan mahasiswa dalam hal kesiapan diri sebelum mengajar yaitu pemahaman konsep yang kurang mendalam, kurangnya persiapan materi, tidak siap secara emosional, kurangnya pengalaman praktik mengajar, kurangnya pengetahuan tentang strategi pengajaran, dan kurangnya keterampilan interpersonal mahasiswa. Sehingga diberikan beberapa solusi yaitu pemahaman konsep, persiapan materi, persiapan mental, persiapan emosional, memperbanyak pengalaman praktik mengajar, memahami strategi pengajaran, dan menguasai keterampilan interpersonal siswa.
{"title":"Studi Kasus Kesiapan Diri Sebelum Mengajar Bagi Mahasiswa Pengenalan Lapangan Persekolahan (PLP) Program Studi Pendidikan Fisika","authors":"Maulidah Maulidah, Amar Ma'ruf Al Bawani, Annisa Dzikro Afifah, Salfa Zahroh Ahadah","doi":"10.19184/jpf.v12i3.43239","DOIUrl":"https://doi.org/10.19184/jpf.v12i3.43239","url":null,"abstract":"Penelitian ini mengeksplorasi pentingnya persiapan yang matang sebelum memasuki pengalaman lapangan bagi mahasiswa Program Studi Pendidikan Fisika dalam konteks Pengenalan Lapangan Persekolahan (PLP). Tujuan utama penelitian adalah menggali pemahaman mendalam tentang bagaimana kesiapan mental, pedagogis, dan interpersonal mempengaruhi kualitas pengajaran mahasiswa selama PLP. Pendekatan studi kasus digunakan untuk mengeksplorasi pengalaman dan pandangan mahasiswa yang terlibat dalam PLPP. Melalui wawancara mendalam dan analisis konten, penelitian ini mengungkapkan kompleksitas faktor-faktor yang membentuk tingkat kesiapan mereka dan bagaimana hal tersebut memengaruhi praktik pengajaran. Temuan menyoroti pentingnya pembekalan yang komprehensif dalam aspek kesiapan sebelum terjun ke lapangan. Implikasi dari penelitian ini adalah perlunya pendekatan yang holistik dalam mempersiapkan mahasiswa PPL Pendidikan Fisika, memastikan bahwa mereka memiliki keterampilan dan kesiapan emosional yang cukup untuk menghadapi tantangan dunia nyata dalam mengajar. Berdasarkan hasil penelitian dapat diketahui bahwa, terdapat beberapa kekurangan mahasiswa dalam hal kesiapan diri sebelum mengajar yaitu pemahaman konsep yang kurang mendalam, kurangnya persiapan materi, tidak siap secara emosional, kurangnya pengalaman praktik mengajar, kurangnya pengetahuan tentang strategi pengajaran, dan kurangnya keterampilan interpersonal mahasiswa. Sehingga diberikan beberapa solusi yaitu pemahaman konsep, persiapan materi, persiapan mental, persiapan emosional, memperbanyak pengalaman praktik mengajar, memahami strategi pengajaran, dan menguasai keterampilan interpersonal siswa.","PeriodicalId":33966,"journal":{"name":"Gravity Jurnal Ilmiah Penelitian dan Pembelajaran Fisika","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136344190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-22DOI: 10.19184/jpf.v12i2.39048
Ni Larasati Kartika Sari, Rahayugo Rahayugo, B. Santoso, Puji Hartoyo
Diagnostic Reference Level (DRL) is a method of optimizing patient doses in diagnostic and intervention procedures. The DRL value is obtained from the Volumetric Computed Tomography Dose Index (CTDIvol) which is obtained from a phantom with a diameter of 16 cm or 32 cm, so it is not yet possible to accurately estimate the dose for each patient, especially pediatric patients. The American Association of Physicists in Medicine (AAPM) then issued a water equivalent diameter (Dw) parameter to calibrate the CTDIvol to obtain a Size-Specific Dose Estimate (SSDE) so that it is more specific and effective. This study aims to obtain local DRL values and compare local DRL values in two pediatric age groups. This study used data from 25 pediatric abdominal CT scan patients aged <15 years, divided into two groups, ages 0-4 years and ages 5-15 years. The results of this study showed that typical DRLCTDIvol values for ages 0-4 years and 5-15 years were 3.09 mGy and 4.39 mGy respectively, while DRLSSDE for the two age groups were 3.25 mGy and 3.54 mGy respectively. There is a difference of 5.27% and 19.36% respectively from the local DRL value based on CTDIvol and SSDE for the two age groups. It can be seen that in the 0-4 year age group, the DRLSSDE value is greater than the DRLCTDIvol, conversely in the 5-15 year age group the DRLSSDE value is lower than the DRLCTDIvol which indicates that the dimensional factor affects the dose received by the patient.
{"title":"PENERAPAN SSDE-DIAMETER EKUIVALEN AIR SEBAGAI TINGKAT PANDUAN DIAGNOSIS TYPICAL VALUE PADA PEMERIKSAAN CT SCAN ABDOMEN PEDIATRIK","authors":"Ni Larasati Kartika Sari, Rahayugo Rahayugo, B. Santoso, Puji Hartoyo","doi":"10.19184/jpf.v12i2.39048","DOIUrl":"https://doi.org/10.19184/jpf.v12i2.39048","url":null,"abstract":"Diagnostic Reference Level (DRL) is a method of optimizing patient doses in diagnostic and intervention procedures. The DRL value is obtained from the Volumetric Computed Tomography Dose Index (CTDIvol) which is obtained from a phantom with a diameter of 16 cm or 32 cm, so it is not yet possible to accurately estimate the dose for each patient, especially pediatric patients. The American Association of Physicists in Medicine (AAPM) then issued a water equivalent diameter (Dw) parameter to calibrate the CTDIvol to obtain a Size-Specific Dose Estimate (SSDE) so that it is more specific and effective. This study aims to obtain local DRL values and compare local DRL values in two pediatric age groups. This study used data from 25 pediatric abdominal CT scan patients aged <15 years, divided into two groups, ages 0-4 years and ages 5-15 years. The results of this study showed that typical DRLCTDIvol values for ages 0-4 years and 5-15 years were 3.09 mGy and 4.39 mGy respectively, while DRLSSDE for the two age groups were 3.25 mGy and 3.54 mGy respectively. There is a difference of 5.27% and 19.36% respectively from the local DRL value based on CTDIvol and SSDE for the two age groups. It can be seen that in the 0-4 year age group, the DRLSSDE value is greater than the DRLCTDIvol, conversely in the 5-15 year age group the DRLSSDE value is lower than the DRLCTDIvol which indicates that the dimensional factor affects the dose received by the patient.","PeriodicalId":33966,"journal":{"name":"Gravity Jurnal Ilmiah Penelitian dan Pembelajaran Fisika","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83247170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-22DOI: 10.19184/jpf.v12i2.39660
A. Safitri, Dinda Aulia Mardani, M. Maryani, Darwoto Darwoto
This research is a classroom action research with the aim of improving students' cognitive learning outcomes in the material of sound waves. The physics material in this even semester for class XI is sound waves. The physical material a fits perfectly with the PBL model. This is evidenced by the increase in learning outcomes with the PBL model. The subjects of this study were all 34 students in class XI MIPA 2 at SMAN 4 Situbondo. Data obtained from the results of learning physics in the form of cognitive tests. qualitative descriptive analysis and gain-test analysis. This research was conducted in two cycles. The conclusion of this study is that the application of the PBL model in physics learning can improve student learning outcomes. This is shown from the results of the average N-Gain score increasing from cycle I to cycle II. Cycle I and cycle II were 0.31 and 0.55 respectively in the moderate category.
{"title":"PENERAPAN MODEL PEMBELAJARAN PROBLEM BASED LEARNING UNTUK MENINGKATKAN HASIL BELAJAR FISIKA PESERTA DIDIK KELAS XI MIPA 2 DI SMAN 1 SITUBONDO","authors":"A. Safitri, Dinda Aulia Mardani, M. Maryani, Darwoto Darwoto","doi":"10.19184/jpf.v12i2.39660","DOIUrl":"https://doi.org/10.19184/jpf.v12i2.39660","url":null,"abstract":" \u0000This research is a classroom action research with the aim of improving students' cognitive learning outcomes in the material of sound waves. The physics material in this even semester for class XI is sound waves. The physical material a fits perfectly with the PBL model. This is evidenced by the increase in learning outcomes with the PBL model. The subjects of this study were all 34 students in class XI MIPA 2 at SMAN 4 Situbondo. Data obtained from the results of learning physics in the form of cognitive tests. qualitative descriptive analysis and gain-test analysis. This research was conducted in two cycles. The conclusion of this study is that the application of the PBL model in physics learning can improve student learning outcomes. This is shown from the results of the average N-Gain score increasing from cycle I to cycle II. Cycle I and cycle II were 0.31 and 0.55 respectively in the moderate category.","PeriodicalId":33966,"journal":{"name":"Gravity Jurnal Ilmiah Penelitian dan Pembelajaran Fisika","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84699177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-22DOI: 10.19184/jpf.v12i2.38754
Elisha Zakiyah, T. Prihandono, Y. Yushardi
Lettuce is a horticultural crop that has many enthusiasts and is widely cultivated using hydroponic systems. One important factor for plant growth is the need for sufficient light to support the process of photosynthesis. Efforts to overcome the lack of light is to use artificial light that comes from LED lights. This study aims to determine the effect of ultraviolet LED growth lamp power on the growth of lettuce plants. This study was divided into two groups: the control group without irradiating LED growth lamps and the experimental group using irradiation of LED growth lamps with a duration of irradiation of 4 hours at night. Parameters observed included plant height, leaf length, leaf width, number of leaves and leaf color in the third week. Analysis of research data used a non-parametric statistical test, namely the Kruskal Wallis test with the help of SPSS 23. The results showed that the power treatment of LED growth lamps had a significant effect on plant height, leaf length, leaf width and number of leaves. However, the power treatment of LED growth lamps did not significantly affect leaf color. The results showed that the best treatment was obtained at 18 watts of power.
{"title":"PENGARUH DAYA LAMPU ULTRAVIOLET LIGHT EMITTING DIODE (LED) GROWTH TERHADAP PERTUMBUHAN FISIKA TANAMAN SELADA SISTEM HIDROPONIK","authors":"Elisha Zakiyah, T. Prihandono, Y. Yushardi","doi":"10.19184/jpf.v12i2.38754","DOIUrl":"https://doi.org/10.19184/jpf.v12i2.38754","url":null,"abstract":"Lettuce is a horticultural crop that has many enthusiasts and is widely cultivated using hydroponic systems. One important factor for plant growth is the need for sufficient light to support the process of photosynthesis. Efforts to overcome the lack of light is to use artificial light that comes from LED lights. This study aims to determine the effect of ultraviolet LED growth lamp power on the growth of lettuce plants. This study was divided into two groups: the control group without irradiating LED growth lamps and the experimental group using irradiation of LED growth lamps with a duration of irradiation of 4 hours at night. Parameters observed included plant height, leaf length, leaf width, number of leaves and leaf color in the third week. Analysis of research data used a non-parametric statistical test, namely the Kruskal Wallis test with the help of SPSS 23. The results showed that the power treatment of LED growth lamps had a significant effect on plant height, leaf length, leaf width and number of leaves. However, the power treatment of LED growth lamps did not significantly affect leaf color. The results showed that the best treatment was obtained at 18 watts of power.","PeriodicalId":33966,"journal":{"name":"Gravity Jurnal Ilmiah Penelitian dan Pembelajaran Fisika","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76742025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-22DOI: 10.19184/jpf.v12i2.39659
Dinda Aulia Mardani, Septania Nur Farida, B. Supriadi, Sri Apriliyani
This research is a classroom action research with the aim of improving students' cognitive learning outcomes on alternative energy material. The subjects of this study were all 34 students of class X2 at SMAN 1 Genteng. Data collection techniques using observation methods, tests with cognitive test instruments, and documentation. Then the data was analyzed by descriptive quantitative. This research was conducted in two cycles. Each cycle consists of two meetings. The conclusion of this study is that the use of PBL model-based worksheets assisted by PhET simulations is proven to be effective in increasing students' cognitive learning outcomes. This is seen from the results of the average N-Gain scores in each cycle, namely I and II, which are 0.54 and 0.56. Both values are included in the medium category, but there is an increase.
{"title":"PENGGUNAAN LKPD BERBANTUAN SIMULASI PHET DALAM MODEL PBL UNTUK MENINGKATKAN HASIL BELAJAR KOGNITIF SISWA","authors":"Dinda Aulia Mardani, Septania Nur Farida, B. Supriadi, Sri Apriliyani","doi":"10.19184/jpf.v12i2.39659","DOIUrl":"https://doi.org/10.19184/jpf.v12i2.39659","url":null,"abstract":"This research is a classroom action research with the aim of improving students' cognitive learning outcomes on alternative energy material. The subjects of this study were all 34 students of class X2 at SMAN 1 Genteng. Data collection techniques using observation methods, tests with cognitive test instruments, and documentation. Then the data was analyzed by descriptive quantitative. This research was conducted in two cycles. Each cycle consists of two meetings. The conclusion of this study is that the use of PBL model-based worksheets assisted by PhET simulations is proven to be effective in increasing students' cognitive learning outcomes. This is seen from the results of the average N-Gain scores in each cycle, namely I and II, which are 0.54 and 0.56. Both values are included in the medium category, but there is an increase. ","PeriodicalId":33966,"journal":{"name":"Gravity Jurnal Ilmiah Penelitian dan Pembelajaran Fisika","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79725271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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