ABSTRACT Biomass-based porous Carbon electrodes have been widely used as a basic material for producing supercapacitor cell electrodes, because its application can be applied in the long term, sustainable, renewable, easy to find and has economic value. This research used biomass Guinea grass (RG) with ZnCl2 molarity variations of 0.1 M, 0.3 M, and 0.5 M as carbon electrodes for supercapacitor…
The number of students who do not understand collision and momentum learning material because the learning system is still the lecture method, resulting in a lack of student interest and learning interest. Based on this, this study designed a device that can investigate the value of gravitational acceleration (g), coefficient of restitution (e), potential energy (EP), kinetic energy (EK), a…
ABSTRACT The identification of the effect of seawater intrusion on aquifers at groundwater depths using the geoelectric method of dipole-dipole configuration has been carried out in Tanjung Kapal Village, Rupat Bengkalis. In this study, the length of the track used is 100 meters. Data retrieval used are resistivity meter, resulting current data (I) and potential difference (V). Data processing…
ABSTRACT Seawater intrusion has a serious impact on the availability of clean water for the population. Seawater intrusion in several locations in Mundam Village, Dumai City was indicated by fluctuations in resident well water quality from freshwater to brackish water to salt water. This study aims to determine the seawater intrusion zone in Mundam Village, Dumai City using the geoelectric met…
Salah satu aspek penting dalam pembelajaran sains adalah kemampuan literasi sains. Kemampuan literasi sains merupakan kemampuan menggunakan pengetahuan sains, mengidentifikasi pertanyaan, dan menarik kesimpulan berdasarkan bukti-bukti dalam rangka berkenaan dengan alam dan perubahan yang dilakukan terhadap alam melalui aktifitas manusia. Namun melalui Programme for International Student Assessm…
Supercapacitor energy storage devices and their electrode materials as the core preparation of high-performance supercapacitors have received wide attention by researchers. Biomass-based activated carbon electrode materials have been widely developed due to their environmental friendliness, abundant availability, porous structure, large specific surface area and good electrical conductivity. Al…
ABSTRAK Ferroelectric is a dielectric material which has the ability to change a wide internal electrical polarization using a suitable electric field. Ferroelectric materials can be applied as capacitors and made in thin films. Barium titanate is a ferroelectric material and can be doped with zirconium which increases the dielectric constant of the material. Fabrication of Barium Zirconiun Ti…
Science process skills are skills that can be trained and developed in students in the learning process. This science process skill consists of several skills which include: observation, classification, observing, predicting, asking questions, conducting hypotheses, conducting experiments, utilizing tools/materials, applying concepts and communicating. The importance of this skill is not o…
Teknologi pembelajaran terus mengalami perkembangan seiring dengan perkembangan zaman. Teknologi informasi dan komunikasi (TIK) dewasa ini menjadi bagian yang tidak akan terpisahkan dalam berbagai aspek-aspek kehidupan manusia. Pendidikan adalah salah satu contoh aspek yang tidak lepas dari pemanfaatan perkembangan teknologi sejak dulu. Pembelajaran juga dituntut untuk mengikuti perkembang…
Pendidikan memegang peranan yang penting dalam meningkatkan kualitas sumber daya manusia. Peningkatan kualitas pendidikan merupakan suatu proses yang terintegrasi dengan proses peningkatan sumber daya manusia itu sendiri. Menyadari pentingnya proses peningkatan sumber daya manusia pemerintah terus berupaya mewujudkan amanat tersebut melalui pengembangan dan perbaikan mutu pendidikan. Berdasarka…
The ability to understand concepts of physics is an absolute requirement for the success of a physics lesson. The low understanding of physics concepts is a problem that must be resolved. One way that is considered to be able to overcome problems in the teaching and learning process is by applying multi-representation-based physics learning. This study aims to determine the effectiveness of mul…
The research aims to describe students' thinking skills in the guided discovery learning model assisted by PhET media. The design used is a quasi-experimental: Posttest only control group design. The population in this study were all students of class XI SMA Negeri 2 Koto Kampar Hulu Academic Year 2021/2022 with a sample of 52 students consisting of class XI MIPA 1 as an experimental class tota…
One of the problems facing education today is that the ability of students to solve problems when working on questions is still very low. Students still have difficulty solving problems and steps to solve problems given in the form of questions. Students' problem-solving abilities can be trained and improved by carrying out learning activities that invite students to explore, investigate, find …
the use of a learning model consisting of an arrangement of learning activities aimed at helping students to build their understanding of concepts. One model that can be done is Conceptual Understanding Procedures (CUPs). The type of research that will be used in this study is Quasi Experimental with the Posttest Only Control Group Design research design, namely using one experimental class and…
:Physics has an important role to answer global challenges and technological advances, so that in the learning process high intellectual human resources are produced. The technology involved today in the world of learning is learning videos, with learning videos the learning system can overcome the limitations of space and time, because it can happen anytime and anywhere. In addition to learnin…
The ability to think creatively is part of the learning concept that must be improved and trained continuously in students. Improving the ability to think creatively in students aims to make students better understand and interpret learning concepts. This study aims to determine the effectiveness of e-modules based on creative problem solving (CPS) models assisted by comics on temperature, expa…
This study aims to describe and find out the differences in cognitive learning outcomes in classes that apply learning using laboratorium virtuals, PhET Simulation and the Physics Classroom, as an experimental class compared to a class that applies conventional learning as a control class. The type of research used is quantitative with the Quasi Experimental research method and the Nonequivalen…
The nation's current generation is required to be able to master 21st century skills, one of which is critical thinking skills needed to face today's world competition with rapid technological advances. The use of this contextual STEAM-based electrical KIT aims to describe students' critical thinking abilities and to find out the differences in critical thinking abilities between the experi…
The current low student physics learning outcomes are because students tend to feel less interested and bored in learning physics because they consider physics to be a difficult subject to learn, and students assume that physics lessons have no connection with their daily lives. Therefore, learning media innovations are needed that can visualize, provide materials, and provide competency te…
Physics lessons that are abstract in nature make it difficult for students to understand them so that students' motivation to learn physics is low. Therefore, teachers must be able to create learning that can foster student motivation to take part in physics lessons, especially in dynamic fluid material, namely by using interesting and easy-to-understand teaching materials such as dynamic fluid…