Mengingat pentingnya Ilmu Pengetahuan Alam dalam berbagai bidang kehidupan manusia, maka perlu diperhatikan mutu pengajaran mata pelajaran Ilmu Pengetahuan Alam yang diajarkan di tiap jenjang dan jenis pendidikan. Masalah utama pembelajaran yang masih banyak ditemui adalah tentang rendahnya hasil belajar peserta didik. Rendahnya hasil belajar Fisika siswa disebabkan oleh banyak hal antara lain:…
The purpose of this research is to develop test instruments based on aspects of scientific literacy indicators. The type of research used is Research and Development (R&D) research using the Analysis, Design, Development, Implementation, and Evaluation (ADDIE) development model. Validation was carried out by 3 expert lecturers, all assessment indicators for each feasibility aspect were declared…
This study aims to describe the Improvement of Students' Cognitive Learning Outcomes after applying the Problem Solving Learning Model with a Contextual Approach and to compare it with Conventional Learning which is applied in Class VIII of SMP Negeri 11 Pekanbaru. This research uses Intact Group Comparison research. The population in this study included all eighth grade students of SMP Ne…
ABSTRACT Every year oil palm fresh fruit bunches (FFB) production continues to increase. However, one of the problems in crude palm oil (CPO) production is the process of sorting and grading, which is still done manually and traditionally. This problem can be eased by introducing a computer vision-based sorting and grading system and you only look once (YOLO) object detection method. This stud…
ABSTRACT Clothing is one of the most basic human needs that cannot be ignored. Clothes can be washed and dried several times. However, drying clothes is not possible during the rainy season and after sunset. This research aims to create a new clothes dryer made from coconut shell waste using a digital system and a heat source from burning biomass which can be used at night or when it rains. Te…
ABSTRACT The purpose of this study is to determine the magnetic properties expressed in the hysteresis loop as well as the morphology of Iron sand Iron Oxide nanoparticles of Logas Village, natural sand, which are doped with Chromium. The separation between magnetic and non-magnetic particles is investigated using the strong magnet Neodymium Iron Boron (NdFeB). Magnetic nanoparticle preparatio…
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ABSTRACT The main problem of cassava farmers is post-harvest processing, which is the drying process. The drying process is required to process cassava into Gaplek, done using sunlight or a cabinet dryer based on coconut shell biomass. The cabinet dryer is usually operated manually; therefore, an instrument is purposed to measure Gaplek moisture content, temperature, and humidity in the cabine…
ABSTRACT Noise is a major issue for people who live near roads or other noisy places. Sound absorbers are a good solution to this problem. This study aims to determine the absorption coefficient of the acoustic wall with a composition of palm fronds with a thickness of 3 cm and varying frond mass of 0.1 kg, 0.15 kg and 0.2 kg. This research used an impedance tube and the transfer function appr…
ABSTRACT The effect of aqueous electrolyte solutions (H2SO4, KOH and Na2SO4) on the performance of supercapacitor Carbon electrodes based on Ambon moss banana stem fibers has been successfully characterized. The Carbon electrode of Ambon moss banana stem fiber is activated using KOH activator of 0.5 M. The preparation of activated Carbon electrodes is prepared in several stages, namely drying …
Indonesia is currently facing the challenges of the 21st century, where there are rapid developments in all aspects, including aspects of science, technology and information dissemination. This leads students to have 21st century skills, one of which is the ability to think creatively. This ability can be trained and developed through science learning at school. The use of learning media, such …
This study aims to describe the differences in cognitive learning outcomes of students using the CUPs learning model assisted by PhET Simulations media and conventional learning. The research was conducted at SMAN 4 Pekanbaru in class XI MIPA by taking a sample of 72 students from a population of 144 students. The research method used is the experimental method with a true experimental des…
The purpose of this study is to ascertain the impact of implementing the explicit instruction type’s cooperative learning model to enhance students' comprehension of concepts in vibration, waves, and sound material. This research uses Quasi Experiment Design, by research design is Posttest Nonequivalent Kontrol Group Design. This research conducted at SMPN 7 Tambang, class VIII B students (31…
Physics learning aims to equip students with knowledge, understanding, and ability to develop science and technology. Teachers must have the ability to develop learning methods or models and the utilization of learning media in such a way as to attract student interest so that learning objectives can be achieved properly. In order to improve the quality of physics learning in particular, innova…
ABSTRACT Supercapacitor is an electrochemical device that combines power delivery capability and charge storage capability. The main components of a supercapacitor are electrodes, separator, electrolyte and current collector. In this study, carbon electrodes are made from coconut fiber biomass waste with variations in the pre- carbonization of 2000C, 2250C and 2500C with the sample codes being…
This study aims to determine the increase in cognitive learning outcomes of class VIII students on pressure material at SMP Negeri 7 Tambang using the Children Learning In Science (CLIS) model. The samples in this study were two classes, namely class VIII-A as the control class and class VIII-B as the experimental class. The type of research used is Experimental Research with a posttest-only…
ABSTRACT Supercapacitor is an electrochemical energy storage devices that can provide a higher energy density than conventional dielectric capacitors. The most important component of a supercapacitor cell is the electrodes. In this research, the supercapacitor cell electrodes used are based on young coconut fiber with carbonization temperature variations of 500°C, 600°C and 700°C. The pre-c…
ABSTRACT The value of magnetic susceptibility and variation of composition and size of iron oxide particles from natural sand collected from Rokan River Riau Province have been investigated by ball milling. Before going through the ball milling process, the magnetic and non-magnetic particles of the sample were separated using an Iron Sand Separator and a Neodynium Iron Boron (NdFeb) magnet. A…
In physics education, students' interest in participating in learning activities significantly affects the success of the learning process. In addition to interest, communication skills are crucial for achieving learning success. Communication in physics is closely related to scientific communication. An individual's understanding of graphical representation is related to their understanding of…
The problem that is often faced by the world of education is the lack of quality or the weakness of learning activities. At present we see a lot of things from various aspects of student education, one of which is that in the process of teaching and learning activities, students learn more in theory. The low student learning outcomes are caused by several things, including physics learning whic…