Karst : JURNAL PENDIDIKAN FISIKA DAN TERAPANNYA

EFEKTIVITAS MEDIA PEMBELAJARAN MAGNETIC FIELD METER BERBASIS ARDUINO UNTUK MENINGKATKAN HASIL BELAJAR FISIKA SISWA SMA/MA

2023-06-30T11:32:32+07:00

The Effectiveness of Arduino-Based Magnetic Field Meter as Learning Media to Improve Physics Learning Outcomes of SMA/MA Students. This study aims to determine the effectiveness of Arduino-based magnetic field meter as learning media to improve physics learning outcomes for SMA/MA students. This research is an experimental research with one group pretest posttest research design. The sample of this research was 24 students of XII MIPA from one of the MA in Garut. Data were analyzed using the <g> calculation to determine the level of improvement in student learning outcomes. Based on the data analysis, the result of the calculation <g> was 0.9118, which means that the increase in student learning outcomes was in the high category. It can be concluded that the Arduino-based magnetic field meter as learning media is effective for improving student learning outcomes in magnetic field subject.

PEMAHAMAN KONSEP SISWA MELALUI SKEMA BLENDED LEARNING MENGGUNAKAN LEMBAR KERJA BERBASIS SIMULASI

2023-06-30T14:36:51+07:00

Learning, especially in physics, could be done in a combination of face-to-face and online. However, the scheme of this combination is unclear. Both type of learning need to be synchronized so that learning becomes effective. The solution is to involve technology in the learning process. Technology can be used as a learning medium and assessment. Blended learning scheme using worksheet based on PhET (Physics Education Technology) simulation was applied in Basic Physics course. This solution is expected to create link between face-to-face and online learning. Mixed methods with embedded design was applied. The population is quite small, namely 32 students so that all population is applied as a sample. Data on students' conceptual understanding were collected using a test. Class discussions became the basis for qualitative data which was further explored through interviews. Conceptual understanding was found in the high category for vector and projectile motion when taught through a blended learning scheme using student worksheets. The averages scores for vector in 1 dimension and 2 dimensions are 85.94 and 77.93, respectively. Then the average scores for the projectile motion is 80.93. Furthermore, through discussions and interviews, various misconceptions and their causes.

The PENGARUH MODEL REQOL (REAL QUEST OUTDOOR LEARNING) TERHADAP KEMAMPUAN BERPIKIR KRITIS DAN HASIL BELAJAR FISIKA SISWA SMA

2023-06-30T14:39:37+07:00

The goal of this study is to evaluate the impact of the ReQOL model on high school students' critical thinking and cognitive learning outcomes. This experimental research method uses pre-test and post-test questions to collect quantitative data from the results of students' critical thinking assessments. All of the pupils in the XIPA class at SMA Negeri 1 Natar made up the study's population. Purposive sampling is used to choose the research sample. Class X IPA III served as the control class in this study, and class X IPA VIII served as the experimental class. Test questions and observation logs were used to obtain the data. Utilizing independent sample T tests and effect size. According to the findings, there was a difference between students who used the ReQOL learning model and those who used Direct Instruction when learning about harmonic vibrations. This difference was based on the significance values of the test Smirnov, which were 0.076 for the pre-test and 0.167 for the post-test in the experimental class. The level of significance of the data is revealed to be 0.000 < 0.05 based on test results from an independent sample T test, indicating that the ReQOL model has a significant impact on improving high school students' critical thinking abilities and academic performance. Based on these results it can be concluded that there is an influence of critical thinking skills and student learning outcomes following the ReQOL learning model in class X IPA physics at SMA Negeri 1 Natar.

ANALISIS KARAKTERISTIK PANJAR MAJU DAN PANJAR MUNDUR PADA DIODA 1N4007

2023-06-30T21:52:22+07:00

The purpose of this study is to describe the characteristics of changes in current and voltage in rectifier diodes with the 1N4007 series in the forward bias and reverse bias states and to be able to describe and explain the characteristics of the current-voltage (I-V) and 1N4007 rectifier diodes. The method used in this study is the experimental method. The equipment and components used in the research are 1N4007 diode, B10K potentiometer, 100Ω resistor, ammeter and voltmeter. The variables measured in this study are the control variable (voltage source), the measurement variable (diode voltage), the response variable (diode current strength). The relationship that is formed from the current strength and voltage on the diode is in the form of a linear curve at the voltage value below the diode working voltage, and will increase significantly when the diode voltage is at working voltage. Based on the analysis of the graph and the load line, it can be concluded that the 1N4007 diode is a diode derived from silicon material with a working voltage value of 0.6 -0.7volts and will only pass current in one direction and will not pass current in a bias state. backwards as long as the diode has not reached its breakdown voltage.

IDENTIFIKASI UNSUR TANAH LITOSOL DENGAN METODE XRF (X-RAY FLUORESCENCE) DAN FTIR (FOURIER TRANSFORM INFRA RED) BERDASARKAN TITIK ELEVASI DI DESA SAMANGKI KECAMATAN SIMBANG KABUPATEN MAROS

2023-08-01T07:54:51+07:00

XRF method to determine elemental content and FTIR test to determine the nature of chemical compounds (functional groups) of Litosol soil at the slope (elevation angle) and the distance of the research trajectory lines. The identified elemental levels are Fe, Si, Ti, K, Mn and Ca. Fe represents the highest elemental content value for each research path. Fe for paths (1-2) are 23.82 % and 37.69%, tracks (5-6) are 23.11% and 37.47%, and paths (9-10) are 40.44% and 33.99% at different elevation angles. The lowest element level is Ca. The value of Ca for each track is 0.24% and 0.66% (1-2), 0.28% and 0.30% (5-6) and 0.27% and 0.62% (9-10) for each different elevation angle. The FTIR method to determine functional groups (chemical compounds) uses the same parameters as the XRF method. The O-H functional groups were detected at wave numbers 3698.31 cm^-1 and 3620.34 cm^-1 with the theoretical accuracy ranges of 3700-3000 cm^-1 and 3590-3650 cm^-1. The C=C which is a double bond functional group was detected at wave number 1640.8 cm^-1 in the theoretical range of 1610-1680 cm^-1. The C-H functional group on each track was detected in three different types of wave numbers with values of 908.99 cm^-1, 786.86 cm^-1 and 746 cm-1, respectively. The range of wave number accuracy for C-H is 690-900 cm^-1.

ANALISIS HUBUNGAN KEMAMPUAN BERPIKIR KRITIS DENGAN HASIL BELAJAR MAHASISWA PENDIDIKAN FISIKA PADA MATERI BANDUL MATEMATIS

2023-06-30T22:57:50+07:00

Abstract: Analysis of the Relationship between Critical Thinking Ability and Learning Outcomes of Physics Education Students on Mathematical Pendulum Material. This study aims to determine the relationship between critical thinking skills and learning outcomes of physics education students on mathematical pendulum material. In this mathematical pendulum material, critical thinking skills are needed by each student because they need to understand the concept of simple harmonic vibrations and the various components in it. This research method is conducted quantitatively correlative, which describes and investigates the relationship between variables. The correlation coefficient number in the results above shows 0.521 or a positive value, so the relationship between variables is unidirectional. This can be interpreted that the higher the critical thinking skills of students, the higher the student learning outcomes. Based on the correlation coefficient number on the research results, the level of relationship between critical thinking skills and physics learning outcomes on mathematical pendulum material is a moderate correlation. The results and discussion of the research indicate that the critical thinking skills of students have a good tendency.

keywords: Mathematical Pendulum, Critical Thinking, Correlation

Abstrak: Analisis Hubungan Kemampuan Berpikir Kritis Dengan Hasil Belajar Mahasiswa Pendidikan Fisika Pada Materi Bandul Matematis. Penelitian ini bertujuan mengetahui hubungan kemampuan berpikir kritis dengan hasil belajar mahasiswa pendidikan fisika pada materi bandul matematis. Pada materi bandul matematis ini diperlukan keterampilan berpikir kritis setiap mahasiswa karena perlu memahami konsep dari getaran harmonik sederhana dan berbagai komponen di dalamnya. Metode penelitian ini dilakukan secara kuantitatif korelatif, yang dimana menggambarkan dan menyelidiki hubungan antar variabel. Pada hasil di atas angka koefisien korelasi menunjukkan 0,521 dapat diartikan bernilai positif, maka dari itu hubungan antar variabel mempunyai sifat searah. Hal tersebut diartikan bahwa semakin tinggi kemampuan berpikir kritis mahasiswa maka akan semakin tinggi juga hasil belajar mahasiswa. Menurut angka koefisien korelasi pada hasil penelitian, maka tingkat hubungan antara kemampuan berpikir kritis dengan hasil belajar fisika pada materi bandul matematis adalah korelasi sedang. Hasil dan diskusi penelitian mengidentifikasi bahwa kemampuan berpikir kritis mahasiswa memiliki kencenderungan baik.