Implementasi Model Problem Based Instruction terhadap Penguasaan Materi Hukum Newton dan Kecakapan Berpikir Kritis Siswa

This study aims to determine the difference in the achievement of students' average scores between the implementation of the problem based instruction (PBI) model and conventional learning on student activities, mastery of Newton's Law material, and students' critical thinking skills. This research method is a true experiment using a randomized control-group pre-test-post-test design, where the experimental class and the control class are given pre-test and post-test. The results of this study indicate, a) in the psychomotor aspect, the percentage of the good category for the experimental class is on average higher than the control class, while in the affective aspect there is no significant difference; b) there is a significant difference in the mastery of Newton's Law material between students taught through the implementation of the PBI model with an average change in value of 56.59 compared to conventional learning of 46.14; c) there is a significant difference in critical thinking skills between students taught through the implementation of the PBI model with an average change in score of 55.85 compared to conventional learning of 45.62. The conclusion, that the implementation of PBI the average score of psychomotor activity, mastery of Newton's Law material, and students' critical thinking skills are significantly different compared to conventional learning. Keywords: Critical Thinking Skills, Newton's Law Material, Problem Based Instruction Model, Conventional Learning

Motivasi Belajar Siswa dalam Pembelajaran Fisika

The purpose of this study was to describe the motivation to learn physics in class X MIA at SMAN 9 Jambi City. This type of research is descriptive research with a quantitative approach. The population of this study were students of class X MIA at SMAN 9 Jambi City. The sampling technique in this research is total sampling. The research instrument used was a questionnaire on students' motivation to learn physics. The data analysis technique used is quantitative analysis using descriptive statistics. The results of this study indicate that the motivation to learn physics in class X MIA at SMAN 9 Jambi City on the intrinsic motivation dimension is in the high category with a percentage of 59,80% where students' attitudes are in the frequent category and the extrinsic motivation dimension is in the high category with a percentage of 61,76% where students' attitudes are in the frequent category. Conclusions, that the attitudes of respondents on the intrinsic motivation dimension include indicators of high learning activities tend to be in the occasional category, indicators of perseverance in doing assignments tend to be in the frequent category, and tenacious indicators in facing difficulties tend to be are in the frequent category. In the extrinsic motivation dimension, indicators of the presence of information from teachers tend to be in the always category, indicators of feedback tend to be in the frequent category, and indicators of reinforcement tend to be in the frequent category. Keywords: Learning Motivation, Physics, Intrinsic and Extrinsic Method

Pengembangan Modul Ilustratif Berbasis Inkuiri Terbimbing Bermuatan Pendidikan Karakter

This study aimed to develop and determine the quality of the illustrative module of guided inquiry-based physics learning with character education. This research was a development research (R&D) which refers to the Borg & Gall model. The limited trial was carried out on 10 grade VII students and the expanded trial was carried out on 31 grade VIIA students at SMP Negeri 24 Surakarta. The data were taken using test techniques for cognitive learning outcomes, and observation techniques for character and psychomotor learning outcomes. Furthermore, it was analyzed by using two-sample paired t-test, while the psychomotor and affective learning outcomes were analyzed using the Friedman test. The results showed that the illustrative module of guided inquiry-based Physics learning containing character education was developed to have a total average score of 265.5 with the "very good" category. In conclusion, there was an increase in student learning outcomes after following the learning process using this developed illustrative module. Key words: Learning Outcomes, Product Quality, Illustration Modules, Research and Development

Penerapan Model Pembelajaran Kooperatif Tipe Student Teams Achievement Division (STAD) terhadap Hasil Belajar Siswa di Madrasah Aliyah

This study aimed to determine the effect of the STAD type cooperative learning model on student physics learning outcomes on the Mechanical Wave material in class XI MAN 1 Tanjung Jabung Barat T.P 2019/2020. The research method used is a quasi-experimental with a population of all students of class XI even semester at MAN 1 Tanjung Jabung Barat. The research sample was taken 2 classes determined by random sampling technique, namely Class XI MIA 1 as an experimental class using the STAD type cooperative learning model and class XI MIA 2 as a control class using a conventional learning model. The results showed that the paired-sample t test in the table above obtained a t value of 4.247 > t table 2000 with a significance value of 0.000 < 0.005. In conclusion, there is a significant effect on the use of the STAD type cooperative learning model on student learning outcomes on the subject matter of straight motion in class XI MAN 1 Tanjung Jabung Barat. Keywords: Learning Outcomes, Cooperative Learning Model, STAD

Pemanfaatan Drainase (Saluran) Air Bekas Limbah Rumah Tangga sebagai Solusi untuk Penurunan Resistansi Pentanahan (Grounding)

This study aims to anticipate a high value of grounding resistance by utilizing drainage or waste water from household waste as a planting medium to reduce the value of grounding resistance. The research method used is an experimental method of testing and measuring at field locations. In this study, a round rod electrode is coated with copper, namely testing with one electrode rod and two electrode rods that are installed in parallel or better known as the use of a driven rod. The results showed a decrease in the value of the grounding resistance where the average value for 1 grounding rod was 18.32 ohms and 11.82 ohms for the measurement of 2 grounding rods installed in parallel. From the test results, there was a decrease in the resistance value of 59.52% for 1 electrode rod and a 51.75% decrease for 2 electrode rods, where the decrease in the resistance value in the field was caused by factors of water, humidity and used water minerals from household waste. In conclusion, housing with reddish yellow podzolic soil that is clay (high soil resistance) by utilizing water drainage is a solution to reduce grounding resistance. Keywords: Resistance, Drainage, Grounding (Grounding)

Identifikasi Batuan Granit Daerah Prospek Panas Bumi Nyelanding menggunakan Metode Magnetik

This study aimed to identify granite rocks around the Nyelanding geothermal area, especially in the geothermal manifestations. This research used the magnetic method to analyze the subsurface structure of the geothermal area. Correction of magnetic data was performed in Microsoft excel 2010 software and two-dimensional modeling was performed using Oasis Montaj 8.4. The results showed that there are three layers of rock under Nyelanding hot springs, namely granite with a susceptibility of 0.009 - 0.05 SI to a depth of 500 meters and a layer of sandstone - clay, as well as layers of clay, gravel and silt with a susceptibility of 0.00001 - 0, 00005 SI. In conclusion, the local geology of the Nyelanding hot spring area is dominated by the presence of granite to a depth of 500 meters. The results of forward modeling on layers A-A' and C-C' show the subsurface structure of Nyelanding hot springs in the form of a granite rock basin which is estimated to be able to accumulate geothermal energy. Key words: Nonvolcanic Geothermal, Magnetic Method, Granite Susceptibility, Forward Modeling

Kandungan Mineral dan Struktur Kristal Batu Sekis

This study aims to determine the mineral content and crystal structure of schist rocks in South Lampung. The method used in this research is the X-ray diffraction method to see the lattice parameters and the crystal structure of the schist rocks. Based on data processing, information was obtained that two main minerals were found, namely quartz and albite minerals. In conclusion, the Albit minerals found in the two samples of rock crystal schists in South Lampung have the same crystal structure and lattice parameters, while the quartz minerals from the two samples have different crystal structures and lattice parameters. Keywords: Lampung, Schis, XRD, Crystal Structure

Resistivitas Batuan Berdasarkan Metode Geolistrik Konfigurasi Schlumberger untuk Menentukan Potensi Air Tanah Sebagai Acuan Sumur Bor

The purpose of this study is to analyze rock resistivity based on the geoelectric method of the Schlumberger configuration to determine the potential for groundwater as a reference for boreholes. The method used in this research is the geoelectric resistivity method with a Schlumberger configuration. Data acquisition modeling was analyzed using Progress Version 3.0 to describe the subsurface based on measurement sounding points in the field. The main targets for these measurements are confined aquifer traps and sandstone stratigraphy. Field measurement points are at coordinates S 030 43 '52.2 "and E 1020 19' 27.1". The results of this study indicate that the layer that is thought to be the groundwater carrier layer is found at a depth of about 64.99 meters to 150.86 meters with a layer thickness of 85.87 meters, which is in the form of sandstone density with a resistivity value of 5.39 ohm meters. The iteration error scale value in this study is, 5.05% RMS. In conclusion, the results obtained can provide specific information for groundwater drilling actors in the research location. Keywords: Groundwater, Geoelectricity, Resistivity, Schlumberger

Hasil Belajar IPA Berdasarkan Gaya Belajar Siswa

This study aims to determine the differences in science learning outcomes of class VIII students of SMP Negeri 1 Larantuka who have visual, auditory and kinesthetic learning styles for the 2019/2020 academic year. The samples in this study were class VIII I and VIII J SMP Negeri 1 Larantuka. The research method used is quantitative with data analysis techniques using One Way Anova. Student learning styles are measured using a questionnaire that has been tested for validity and reliability first. Meanwhile, the learning outcome variable used the documentation method. The results of the F test showed that the value of Fcount <Ftable is 0.198 <2.53 with a significance value of 0.821> 0.05. In conclusion, there is no significant difference in science learning outcomes between students who have visual, auditory and kinesthetic learning styles. Keywords: Learning Style; Science Learning Outcomes

Penggunaan Aplikasi Online Quizizz dalam Menganalisis Hasil Tes Kognitif Siswa pada Materi Energi

The purpose of this study was to analyze the results of students' cognitive tests on energy using the Quizizz application in online learning. This research method is in the form of survey research and literature review. Sampling was carried out using random sampling in order to obtain 28 vocational students in the physics subject matter of energy, but two of them experienced problems so that they could not take the test of learning outcomes in energy material. The analysis of cognitive test results is described quantitatively with descriptions of images and graphs of media Quizzes. The results showed that as many as 26 SMK students could answer questions correctly on the energy material in some of the questions presented. The analysis of the most correct answers and the fastest time to answer is in the fifth question, 25 correct answers are obtained within 2 seconds, while the least correct answers and the longest answer are in the tenth question with 8 correct answers within 16 seconds. Students can answer questions in the form of theory that are displayed in picture form, while students have difficulty answering questions in the form of mathematical calculations using certain formulas related to energy even though the pictures have been shown as a way to facilitate understanding of the questions. In conclusion, the use of the Quizizz application provides an idea to educators that the learning outcomes of students' cognitive tests can be easily obtained in a fast time to get an evaluation of learning outcomes, so it can be recommended as a medium for evaluating learning in various fields and various subject matter. Keywords: Energy, Online Learning, Quizizz, Cognitive Tests