Pub Date : 2024-07-26DOI: 10.20414/konstan.v9i01.479
Firza Riyadhini Yarkasih, T. Nurita, Nariyah Al-Zahzamri, Riska Ayu Pratiwi, Nur Khasanah
The universe is a space containing large amounts of both organic and inorganic carbon that has the potential to encourage heterotrophs on habitable planets. Meteorites are materials that can transport carbon from outer space to the planet's surface. Meteorites bombarded the Earth's surface during the early days of evolution and proliferation of life, potentially providing a source of abiotic organic carbon to support early life. This study aims to analyze research methods used in detecting the use of space organic carbon, analyze research results related to the role of space organic carbon, and provide further understanding to the researchers associated with organic carbon from space and its potential in human life on Earth. This study uses a systematic review method using 15 sources of information from national and international news and journal articles related to space organic carbon and its potential. This study showed that extraterrestrial organic carbon produces a source of carbon that is beneficial for microorganisms to integrate into their proteins. Combining inverse stable isotope labeling and infrared spectroscopy shows that organic carbon from Aguas Zarcas carbon chondrite can be harnessed for cell growth. Previous discoveries have also shown that aerobic microbial communities have potential in human space settlement plans to access and research carbonaceous asteroid material.
{"title":"A Review of Extraterrestrial Organic Carbon and its Potential Impact on Life on Earth","authors":"Firza Riyadhini Yarkasih, T. Nurita, Nariyah Al-Zahzamri, Riska Ayu Pratiwi, Nur Khasanah","doi":"10.20414/konstan.v9i01.479","DOIUrl":"https://doi.org/10.20414/konstan.v9i01.479","url":null,"abstract":"The universe is a space containing large amounts of both organic and inorganic carbon that has the potential to encourage heterotrophs on habitable planets. Meteorites are materials that can transport carbon from outer space to the planet's surface. Meteorites bombarded the Earth's surface during the early days of evolution and proliferation of life, potentially providing a source of abiotic organic carbon to support early life. This study aims to analyze research methods used in detecting the use of space organic carbon, analyze research results related to the role of space organic carbon, and provide further understanding to the researchers associated with organic carbon from space and its potential in human life on Earth. This study uses a systematic review method using 15 sources of information from national and international news and journal articles related to space organic carbon and its potential. This study showed that extraterrestrial organic carbon produces a source of carbon that is beneficial for microorganisms to integrate into their proteins. Combining inverse stable isotope labeling and infrared spectroscopy shows that organic carbon from Aguas Zarcas carbon chondrite can be harnessed for cell growth. Previous discoveries have also shown that aerobic microbial communities have potential in human space settlement plans to access and research carbonaceous asteroid material.","PeriodicalId":137476,"journal":{"name":"KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141799673","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 : 2024-07-26DOI: 10.20414/konstan.v9i01.543
Atin Nuryadin, Muhammad Fauzan Fitri, Retno Rahma Wati, Khairunnisa Hayatul Fadhilah, L. Subagiyo, Isniawana Damayanti
The increasing demand for paper has significantly impacted the environment due to the heavy reliance on wood as a primary raw material. This study investigates the feasibility of using durian (Durio zibethinus) peels and corn (Zea mays) stalks as alternative raw materials for paper production, focusing on their physical characteristics. The paper pulp was prepared using the soda pulping method with NaOH. Various ratios of durian peels and corn stalks were mixed: 1:0 (A), 0:1 (B), 1:1 (C), 2:1 (D), and 1:2 (E). Results indicated that type D produced the thickest paper, while type A produced the thinnest. The highest grammage was observed in type E, and the lowest in type D. Type C showed the highest absorbency. The tensile and tear indexes were highest in type D and lowest in type C. Type A had the highest mass density, whereas type D had the lowest. The findings suggest that a combination of durian peel and corn stalks exhibits diverse physical properties, indicating their potential use as an alternative to conventional wood-based paper. This approach could reduce the dependency on wood and contribute to environmental conservation.
由于严重依赖木材作为主要原材料，造纸需求的不断增长对环境造成了严重影响。本研究调查了使用榴莲（Durio zibethinus）皮和玉米（Zea mays）茎秆作为造纸替代原料的可行性，重点研究了它们的物理特性。纸浆是用 NaOH 碱打浆法制备的。榴莲皮和玉米秆的混合比例各不相同：1:0（A）、0:1（B）、1:1（C）、2:1（D）和 1:2（E）。结果表明，D 型生产的纸最厚，而 A 型生产的纸最薄。E 型的克重最高，D 型的克重最低。D 型的拉伸指数和撕裂指数最高，C 型最低。A 型的质量密度最高，而 D 型最低。研究结果表明，榴莲皮和玉米秸秆的组合具有不同的物理性质，表明它们具有替代传统木质纸张的潜力。这种方法可以减少对木材的依赖，有助于环境保护。
{"title":"Physical Characterization of Paper Made from Durian Peels and Corn Stalks","authors":"Atin Nuryadin, Muhammad Fauzan Fitri, Retno Rahma Wati, Khairunnisa Hayatul Fadhilah, L. Subagiyo, Isniawana Damayanti","doi":"10.20414/konstan.v9i01.543","DOIUrl":"https://doi.org/10.20414/konstan.v9i01.543","url":null,"abstract":"The increasing demand for paper has significantly impacted the environment due to the heavy reliance on wood as a primary raw material. This study investigates the feasibility of using durian (Durio zibethinus) peels and corn (Zea mays) stalks as alternative raw materials for paper production, focusing on their physical characteristics. The paper pulp was prepared using the soda pulping method with NaOH. Various ratios of durian peels and corn stalks were mixed: 1:0 (A), 0:1 (B), 1:1 (C), 2:1 (D), and 1:2 (E). Results indicated that type D produced the thickest paper, while type A produced the thinnest. The highest grammage was observed in type E, and the lowest in type D. Type C showed the highest absorbency. The tensile and tear indexes were highest in type D and lowest in type C. Type A had the highest mass density, whereas type D had the lowest. The findings suggest that a combination of durian peel and corn stalks exhibits diverse physical properties, indicating their potential use as an alternative to conventional wood-based paper. This approach could reduce the dependency on wood and contribute to environmental conservation.","PeriodicalId":137476,"journal":{"name":"KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141802243","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 : 2024-07-25DOI: 10.20414/konstan.v9i01.516
Mohammad Rasyidi Azhari, Lalu Sahrul Hudha, D. W. Kurniawidi, Rima Buana Prahasitiwi
Seawater intrusion increases groundwater salinity and affects the quality of residents' healthy water around coastal areas. Therefore, simple mapping of seawater intrusion distribution based on the salinity values of healthy water around coastal areas is necessary. This mapping can be done by measuring the salinity of the water using a portable and real-time instrument. The existing measurement system is not resistant to corrosion, does not have a data logger system, and does not have a display system capable of showing real-time salinity value graphs. In this study, a portable salinity measurement system resistant to corrosion caused by high salt levels was developed. The salinity measurement method used is the conductivity method. The salinity value of the solution is proportional to the measured conductivity value of the solution. Conductivity measurement uses two electrodes connected to a voltage divider circuit with an AC power source to avoid electrode polarization and electrochemical reactions. The output voltage of this voltage divider circuit is proportional to the conductivity value of the solution in which the two electrodes are immersed, based on Ohm's law. This output voltage is fed into a signal conditioning circuit consisting of an amplifier, filter, and full-wave rectifier. Subsequently, an Atmega 328 microcontroller processes this data for real-time display on a TFT LCD and real-time storage on a data logger module. Testing and calibration are then carried out to obtain the relationship between the solution's salinity value and the measured output voltage, expressed as a 2nd-order polynomial function Vout = -0.0012C2 + 3.5126C + 14.194. Additionally, it is known that salinity measurement results using the conductivity method are influenced by temperature, so temperature measurement using the DS18B20 sensor is required to obtain a compensation factor due to temperature changes. The higher the temperature, the higher the measured salinity value for the exact solution measurement.
{"title":"Design and Development of A Portable Conductivity-Based Salinity Measurement System for Coastal Well Water","authors":"Mohammad Rasyidi Azhari, Lalu Sahrul Hudha, D. W. Kurniawidi, Rima Buana Prahasitiwi","doi":"10.20414/konstan.v9i01.516","DOIUrl":"https://doi.org/10.20414/konstan.v9i01.516","url":null,"abstract":"Seawater intrusion increases groundwater salinity and affects the quality of residents' healthy water around coastal areas. Therefore, simple mapping of seawater intrusion distribution based on the salinity values of healthy water around coastal areas is necessary. This mapping can be done by measuring the salinity of the water using a portable and real-time instrument. The existing measurement system is not resistant to corrosion, does not have a data logger system, and does not have a display system capable of showing real-time salinity value graphs. In this study, a portable salinity measurement system resistant to corrosion caused by high salt levels was developed. The salinity measurement method used is the conductivity method. The salinity value of the solution is proportional to the measured conductivity value of the solution. Conductivity measurement uses two electrodes connected to a voltage divider circuit with an AC power source to avoid electrode polarization and electrochemical reactions. The output voltage of this voltage divider circuit is proportional to the conductivity value of the solution in which the two electrodes are immersed, based on Ohm's law. This output voltage is fed into a signal conditioning circuit consisting of an amplifier, filter, and full-wave rectifier. Subsequently, an Atmega 328 microcontroller processes this data for real-time display on a TFT LCD and real-time storage on a data logger module. Testing and calibration are then carried out to obtain the relationship between the solution's salinity value and the measured output voltage, expressed as a 2nd-order polynomial function Vout = -0.0012C2 + 3.5126C + 14.194. Additionally, it is known that salinity measurement results using the conductivity method are influenced by temperature, so temperature measurement using the DS18B20 sensor is required to obtain a compensation factor due to temperature changes. The higher the temperature, the higher the measured salinity value for the exact solution measurement.","PeriodicalId":137476,"journal":{"name":"KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141802678","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 : 2024-07-23DOI: 10.20414/konstan.v9i01.475
Desak Made Anggraeni, Nova Andina
Philosophy will be closely associated with the nature, principles, and laws governing all existing reality. This study examines the ontology, epistemology, and axiology aspects of the junior high school concept of pressure. The method used in this study is conducting studies from various books, journals, articles, magazines, and other scientific references related to the research topic. The data collection process in this study was divided into three stages: (1) editing, (2) organizing, and (3) finding. According to the findings of various studies, the ontological aspect of pressure explains what exactly pressure is. What does it accomplish? What kind? While the epistemological aspect of the concept of pressure is related to an explanation of the discussion related to the epistemological aspect of the idea of pressure will be studied regarding (1) the discovery of the idea of pressure, (2) the idea of pressure; (3) the laws that apply to the matter of stress. Meanwhile, the axiological aspect explains how pressure is useful and the laws that govern it in various aspects of human life. Thus, teachers should pay attention to the ontology, epistemology, and axiology aspects of the concept of pressure when teaching it in junior high school.
{"title":"An Overview of Ontological, Epistemological, and Axiological Aspects of the Junior High School Concept of Pressure","authors":"Desak Made Anggraeni, Nova Andina","doi":"10.20414/konstan.v9i01.475","DOIUrl":"https://doi.org/10.20414/konstan.v9i01.475","url":null,"abstract":"Philosophy will be closely associated with the nature, principles, and laws governing all existing reality. This study examines the ontology, epistemology, and axiology aspects of the junior high school concept of pressure. The method used in this study is conducting studies from various books, journals, articles, magazines, and other scientific references related to the research topic. The data collection process in this study was divided into three stages: (1) editing, (2) organizing, and (3) finding. According to the findings of various studies, the ontological aspect of pressure explains what exactly pressure is. What does it accomplish? What kind? While the epistemological aspect of the concept of pressure is related to an explanation of the discussion related to the epistemological aspect of the idea of pressure will be studied regarding (1) the discovery of the idea of pressure, (2) the idea of pressure; (3) the laws that apply to the matter of stress. Meanwhile, the axiological aspect explains how pressure is useful and the laws that govern it in various aspects of human life. Thus, teachers should pay attention to the ontology, epistemology, and axiology aspects of the concept of pressure when teaching it in junior high school.","PeriodicalId":137476,"journal":{"name":"KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141812493","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 : 2024-07-13DOI: 10.20414/konstan.v9i01.484
Lalu Ahmad Didik Meiliyadi, Muhammad Zainur Rahman, Zahida Aliatul Zain
Functional group analysis of silica gel synthesized from river sand magnetic minerals using the sol-gel method was conducted. River sand magnetic mineral samples were taken from Sompang River, Lombok. The synthesis method used is a sol-gel method with variation of HCl acid 10 M and NH4OH base 10 M. Morphological characterization using a Scanning Electron Microscope (SEM) and mineral content analysis using Energy Dispersive X-ray (EDX). The morphology of the resulting silica gel is granular, showing crystalline properties with a silica concentration of 77.99 ± 0.17 atomic percent. Silica functional groups before absorption showed three stretching vibrations, namely OH group stretching vibrations in Si-OH and H2O at an absorption wavelength of 3669.77 cm-1, Si-O stretching vibrations from siloxane (Si-O-Si) at an absorption wavelength of 2858.51 cm-1 and Si-O asymmetric stretching vibrations from silanol (Si-OH) at an absorption wavelength of 962.88 cm-1. While the results of the analysis of silica gel after absorption show that almost all samples have vibrational absorption in the range of 400-500 cm-1. Other vibrational absorptions in silica samples that have been used as water filters indicate that the bonding between nano-silica as an absorber and heavy metals is due to the magnetic properties of nano-silica.
{"title":"Functional Group Analysis of Silica Gel Based on River Sand Magnetic Mineral as Heavy Metal Absorbance","authors":"Lalu Ahmad Didik Meiliyadi, Muhammad Zainur Rahman, Zahida Aliatul Zain","doi":"10.20414/konstan.v9i01.484","DOIUrl":"https://doi.org/10.20414/konstan.v9i01.484","url":null,"abstract":"Functional group analysis of silica gel synthesized from river sand magnetic minerals using the sol-gel method was conducted. River sand magnetic mineral samples were taken from Sompang River, Lombok. The synthesis method used is a sol-gel method with variation of HCl acid 10 M and NH4OH base 10 M. Morphological characterization using a Scanning Electron Microscope (SEM) and mineral content analysis using Energy Dispersive X-ray (EDX). The morphology of the resulting silica gel is granular, showing crystalline properties with a silica concentration of 77.99 ± 0.17 atomic percent. Silica functional groups before absorption showed three stretching vibrations, namely OH group stretching vibrations in Si-OH and H2O at an absorption wavelength of 3669.77 cm-1, Si-O stretching vibrations from siloxane (Si-O-Si) at an absorption wavelength of 2858.51 cm-1 and Si-O asymmetric stretching vibrations from silanol (Si-OH) at an absorption wavelength of 962.88 cm-1. While the results of the analysis of silica gel after absorption show that almost all samples have vibrational absorption in the range of 400-500 cm-1. Other vibrational absorptions in silica samples that have been used as water filters indicate that the bonding between nano-silica as an absorber and heavy metals is due to the magnetic properties of nano-silica.","PeriodicalId":137476,"journal":{"name":"KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141650790","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 : 2024-07-03DOI: 10.20414/konstan.v9i01.413
L. Asmin, L. Isa
This research aims to determine the differences in the microstructure, morphology, and functional groups of TiO2 (P-25) after being impregnated with Cu. Cu-impregnated TiO2 samples are synthesized using the impregnation method with TiO2 (P-25) and copper sulfate as precursors. The microstructure and functional groups of TiO2 (P-25) and Cu-TiO2 were investigated using X-ray diffraction (XRD), scanning electron microscope-energy dispersive x-ray (SEM-EDX), and Fourier transform infrared (FTIR) analysis. The lattice parameters (a, b, and c) of the TiO2 sample were found to be a = b = 0.3778 nm, c = 0.9494 nm, and these values increased to a = b = 0.3779 nm, c = 0.9496 nm after the addition of Cu. The distance between the lattices of the TiO2 sample was measured at 0.3505 nm and increased to 0.3509 nm after Cu addition. The average crystallite size of the TiO2 sample was 33 nm, which increased to 43 nm after Cu impregnation. The strain value decreased from 2.76×10^(-3) to 1.82×10^(-3) after Cu addition. SEM results revealed that the morphology of the particles from the Cu-doped synthesis showed agglomeration. The success of Cu doping was confirmed by EDX mapping, which showed the presence of Ti, O, and Cu evenly distributed on the TiO2 surface. The FTIR spectrum indicated that TiO2 (P-25) and Cu-TiO2 particles had absorption peaks at similar wave numbers. However, in the absorption area of 1000 cm^-1 to 1250 cm^-1, new absorption bands affiliated with Cu-O bonds appeared in the Cu-TiO2 sample, resulting from TiO2 vibrations after Cu addition.
本研究旨在确定 TiO2（P-25）浸渍铜后在微观结构、形态和官能团方面的差异。以 TiO2 (P-25) 和硫酸铜为前驱体，采用浸渍法合成了铜浸渍 TiO2 样品。采用 X 射线衍射 (XRD)、扫描电子显微镜-能量色散 X 射线 (SEM-EDX) 和傅立叶变换红外 (FTIR) 分析方法研究了 TiO2 (P-25) 和 Cu-TiO2 的微观结构和官能团。发现 TiO2 样品的晶格参数（a、b 和 c）为 a = b = 0.3778 nm、c = 0.9494 nm，添加铜后，这些值增加到 a = b = 0.3779 nm、c = 0.9496 nm。TiO2 样品晶格间的距离测量值为 0.3505 nm，添加铜后增加到 0.3509 nm。TiO2 样品的平均结晶尺寸为 33 nm，在浸渍铜后增加到 43 nm。添加 Cu 后，应变值从 2.76×10^(-3) 降至 1.82×10^(-3)。扫描电镜结果显示，掺铜合成物的颗粒形态呈现团聚现象。EDX 图谱显示 TiO2 表面均匀分布着 Ti、O 和 Cu，证实了 Cu 掺杂的成功。傅立叶变换红外光谱显示，TiO2（P-25）和 Cu-TiO2 颗粒的吸收峰波数相似。然而，在 1000 cm^-1 至 1250 cm^-1 的吸收区域，Cu-TiO2 样品出现了与 Cu-O 键相关的新吸收带，这是由于添加 Cu 后 TiO2 振动所致。
{"title":"Study of Microstructure, Morphology and Functional Groups of Titanium Dioxide (Tio2) Impregnated With Copper (Cu)","authors":"L. Asmin, L. Isa","doi":"10.20414/konstan.v9i01.413","DOIUrl":"https://doi.org/10.20414/konstan.v9i01.413","url":null,"abstract":"This research aims to determine the differences in the microstructure, morphology, and functional groups of TiO2 (P-25) after being impregnated with Cu. Cu-impregnated TiO2 samples are synthesized using the impregnation method with TiO2 (P-25) and copper sulfate as precursors. The microstructure and functional groups of TiO2 (P-25) and Cu-TiO2 were investigated using X-ray diffraction (XRD), scanning electron microscope-energy dispersive x-ray (SEM-EDX), and Fourier transform infrared (FTIR) analysis. The lattice parameters (a, b, and c) of the TiO2 sample were found to be a = b = 0.3778 nm, c = 0.9494 nm, and these values increased to a = b = 0.3779 nm, c = 0.9496 nm after the addition of Cu. The distance between the lattices of the TiO2 sample was measured at 0.3505 nm and increased to 0.3509 nm after Cu addition. The average crystallite size of the TiO2 sample was 33 nm, which increased to 43 nm after Cu impregnation. The strain value decreased from 2.76×10^(-3) to 1.82×10^(-3) after Cu addition. SEM results revealed that the morphology of the particles from the Cu-doped synthesis showed agglomeration. The success of Cu doping was confirmed by EDX mapping, which showed the presence of Ti, O, and Cu evenly distributed on the TiO2 surface. The FTIR spectrum indicated that TiO2 (P-25) and Cu-TiO2 particles had absorption peaks at similar wave numbers. However, in the absorption area of 1000 cm^-1 to 1250 cm^-1, new absorption bands affiliated with Cu-O bonds appeared in the Cu-TiO2 sample, resulting from TiO2 vibrations after Cu addition.","PeriodicalId":137476,"journal":{"name":"KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141681896","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 : 2024-07-02DOI: 10.20414/konstan.v9i01.494
Maya Shinta Saqila, Finna Pramudita, Marsa Raihanida Hakim, Riski Yulianto Saputra, Syihaabul Hudaa, Ahmad Suryadi
The main problem in physics education among students is the lack of interest in learning due to monotonous teaching methods such as lectures. Lectures are often considered uninteresting and ineffective. This research aims to assess the effectiveness of a Thunkable-based application named Archio in increasing learning interest. The study uses the 4-D development model (Define, Design, Develop, Disseminate) and was conducted at the end of 2023. The Define stage involved a survey to identify students' learning difficulties, which showed Archimedes' Law as the most difficult material. The Archio application was then designed (Design) and developed (Develop) with features such as learning materials, interactive simulations, quizzes, and reflections. At the Disseminate stage, the application was introduced through posters. The application received scores of 4.30 and 4.20 from expert and student validation results. The validation results indicated that the application is suitable for use with a very good category. The recommendation from this research is further development of the Archio application based on validator feedback to ensure its wider and smoother usage
{"title":"Innovating Physics Education with the Archio Application to Enhance Interest in Learning Archimedes' Law","authors":"Maya Shinta Saqila, Finna Pramudita, Marsa Raihanida Hakim, Riski Yulianto Saputra, Syihaabul Hudaa, Ahmad Suryadi","doi":"10.20414/konstan.v9i01.494","DOIUrl":"https://doi.org/10.20414/konstan.v9i01.494","url":null,"abstract":"The main problem in physics education among students is the lack of interest in learning due to monotonous teaching methods such as lectures. Lectures are often considered uninteresting and ineffective. This research aims to assess the effectiveness of a Thunkable-based application named Archio in increasing learning interest. The study uses the 4-D development model (Define, Design, Develop, Disseminate) and was conducted at the end of 2023. The Define stage involved a survey to identify students' learning difficulties, which showed Archimedes' Law as the most difficult material. The Archio application was then designed (Design) and developed (Develop) with features such as learning materials, interactive simulations, quizzes, and reflections. At the Disseminate stage, the application was introduced through posters. The application received scores of 4.30 and 4.20 from expert and student validation results. The validation results indicated that the application is suitable for use with a very good category. The recommendation from this research is further development of the Archio application based on validator feedback to ensure its wider and smoother usage","PeriodicalId":137476,"journal":{"name":"KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141685748","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 : 2024-07-01DOI: 10.20414/konstan.v9i01.492
K. Mahbubah, Agus Santoso, Silvia Rosiva Rosdiana, Rahmad Djatmiko
Critical thinking helps students develop the ability to analyze information, search for evidence, and make decisions based on open and logical thinking. This study measures junior high school students' critical thinking on heat concepts by implementing the Scaffolding method. This research used a pre-experimental method with a one-group pre-test and post-test design with a quantitative approach. The subjects of this research were 57 seventh-grade students in junior high school. The results show that the paired sample t-test is 0.000 < 0.05, which shows that the Scaffolding method effectively improves students' critical thinking skills on heat concepts and is confirmed by the n-gain test of 0.73 in the high category. It can be concluded that the Scaffolding method effectively increases junior school students' critical thinking skills.
批判性思维有助于培养学生分析信息、寻找证据以及在开放和逻辑思维的基础上做出决策的能力。本研究通过实施 "支架法 "来测量初中生对热概念的批判性思维。本研究采用了实验前方法，即一组前测和一组后测的定量设计。研究对象为 57 名初中七年级学生。结果显示，配对样本 t 检验的结果为 0.000 < 0.05，这表明支架法有效提高了学生对热概念的批判性思维能力，并得到了高分组 0.73 的 n 增益检验的证实。由此可以得出结论，支架法有效提高了初中学生的批判性思维能力。
{"title":"Improving Junior High School Students' Critical Thinking Through Scaffolding Methode on Heat Concept","authors":"K. Mahbubah, Agus Santoso, Silvia Rosiva Rosdiana, Rahmad Djatmiko","doi":"10.20414/konstan.v9i01.492","DOIUrl":"https://doi.org/10.20414/konstan.v9i01.492","url":null,"abstract":"Critical thinking helps students develop the ability to analyze information, search for evidence, and make decisions based on open and logical thinking. This study measures junior high school students' critical thinking on heat concepts by implementing the Scaffolding method. This research used a pre-experimental method with a one-group pre-test and post-test design with a quantitative approach. The subjects of this research were 57 seventh-grade students in junior high school. The results show that the paired sample t-test is 0.000 < 0.05, which shows that the Scaffolding method effectively improves students' critical thinking skills on heat concepts and is confirmed by the n-gain test of 0.73 in the high category. It can be concluded that the Scaffolding method effectively increases junior school students' critical thinking skills.","PeriodicalId":137476,"journal":{"name":"KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141690820","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 : 2024-05-14DOI: 10.20414/konstan.v8i02.471
Besse Mutmainnah, Zurratul Amni, Muh Wahyudi
This research and development study aimed to create a mobile learning application based on the Android platform to facilitate the teaching and learning of static fluid concepts. The ADDIE (Analysis, Design, Development, Implementation, and Evaluation) model was employed as the framework for the research methodology. The data collection instruments included validation questionnaires completed by subject matter experts, media experts, physics teachers, and students. These were administered during small-group and large-group trials conducted with 11th-grade science students at MAN 1 Lotim. The end product was an Android-based learning app that received an overall good rating with a total score of 82. Evaluation by media experts deemed it good, with a score of 60 out of a maximum of 75. Physics teachers who validated the app rated it as very good/effective with a score of 52. During the large group trial with students, the app gained a high score of 1759, averaging 4.31 which falls into the very interesting category. Based on the validation results and feedback obtained, it can be concluded that the Android-based mobile learning application developed in this study is suitable, effective, and practical to be utilized as an instructional tool for teaching static fluid concepts to high school 11th-grade students in physics education programs.
{"title":"Development of Android-Based Mobile Learning Media Using ADDIE Model on Static Fluid Topics for High School 11th Grade Students","authors":"Besse Mutmainnah, Zurratul Amni, Muh Wahyudi","doi":"10.20414/konstan.v8i02.471","DOIUrl":"https://doi.org/10.20414/konstan.v8i02.471","url":null,"abstract":"This research and development study aimed to create a mobile learning application based on the Android platform to facilitate the teaching and learning of static fluid concepts. The ADDIE (Analysis, Design, Development, Implementation, and Evaluation) model was employed as the framework for the research methodology. The data collection instruments included validation questionnaires completed by subject matter experts, media experts, physics teachers, and students. These were administered during small-group and large-group trials conducted with 11th-grade science students at MAN 1 Lotim. The end product was an Android-based learning app that received an overall good rating with a total score of 82. Evaluation by media experts deemed it good, with a score of 60 out of a maximum of 75. Physics teachers who validated the app rated it as very good/effective with a score of 52. During the large group trial with students, the app gained a high score of 1759, averaging 4.31 which falls into the very interesting category. Based on the validation results and feedback obtained, it can be concluded that the Android-based mobile learning application developed in this study is suitable, effective, and practical to be utilized as an instructional tool for teaching static fluid concepts to high school 11th-grade students in physics education programs.","PeriodicalId":137476,"journal":{"name":"KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140981788","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 investigates the implementation of project-based learning, explicitly focusing on designing and presenting e-posters within the Basic Physics course for pre-service science teachers, with a particular emphasis on pre-service biology teachers. Descriptive and correlational quantitative methods were utilized to analyze data collected from 16 participating students throughout 16 sessions. The assessment perspectives of lecturers, peers, and self-assessment were examined, revealing disparities in scores and highlighting the importance of multiple assessment sources. Recognition through awards was granted to students with exemplary performance, while guidance sessions led by the instructor significantly correlated with improvements in poster design. Analysis of poster content indicated a focus on fundamental physics concepts, mainly mechanics, with students utilizing various information sources. The study underscores the effectiveness of project-based learning in promoting student engagement, skill development, and conceptual understanding in physics education.
{"title":"Exploring Project-Based Learning: Physics E-Posters in Pre-Service Science Education","authors":"Ogi Danika Pranata, Putri Dwi Sundari, Dady Sulaiman","doi":"10.20414/konstan.v8i02.387","DOIUrl":"https://doi.org/10.20414/konstan.v8i02.387","url":null,"abstract":"This study investigates the implementation of project-based learning, explicitly focusing on designing and presenting e-posters within the Basic Physics course for pre-service science teachers, with a particular emphasis on pre-service biology teachers. Descriptive and correlational quantitative methods were utilized to analyze data collected from 16 participating students throughout 16 sessions. The assessment perspectives of lecturers, peers, and self-assessment were examined, revealing disparities in scores and highlighting the importance of multiple assessment sources. Recognition through awards was granted to students with exemplary performance, while guidance sessions led by the instructor significantly correlated with improvements in poster design. Analysis of poster content indicated a focus on fundamental physics concepts, mainly mechanics, with students utilizing various information sources. The study underscores the effectiveness of project-based learning in promoting student engagement, skill development, and conceptual understanding in physics education.","PeriodicalId":137476,"journal":{"name":"KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140750081","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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