scholarly journals Misconception Profile of Prospective Physics Teachers Assessed from Various Representations of Electricity Subjects

2021 ◽  
Vol 2 (1) ◽  
pp. 32-37
Author(s):  
Muhammad Zuhdi ◽  
Ahmad Busyairi
Keyword(s):  
Prospective Teachers ◽  
Teacher Candidates ◽  
Second Law ◽  
Physics Teachers ◽  
Physics Teacher ◽  
Ohm’S Law ◽  
Test Items ◽  
The Subject ◽  
Ohm's Law ◽  
Descriptive Method

Misconception is one of the important problems that often arise in education. The objective of this study is identify misconceptions in the subject of Electricty that occur in prospective teachers. The method used in this research is descriptive method. A total of 25 pre-service physics teacher candidates at a university in the Mataram City were involved in this study. The instrument used in this study was a three-tier test. This study use a total of 40 test items. These questions are classified into two types of representation, namely; verbal and figural. The results showed that 88.1% of prospective physics teachers had misconceptions on Kirchoff's first law, 94.8% misconceptions on Kichoff's second law concept, 91.7% misconceptions on Ohm's Law concept and 85.9% on electrical sources concepts. The results of the study show that 72.3% of prospective physics teachers had misconceptions on verbal type questions and 84.2% misconceptions on figural types

scholarly journals Konsepsi dan Miskonsepsi Siswa, Mahasiswa Calon Guru, dan Guru pada Topik Cahaya dalam Pembelajaran Fisika

2018 ◽  
Vol 6 (3) ◽  
pp. 235-250
Author(s):  
Andi Sri Astika Wahyuni
Keyword(s):  
Data Collection ◽  
Teacher Candidates ◽  
Teacher Candidate ◽  
Learning Program ◽  
Physics Learning ◽  
Physics Teachers ◽  
Physics Teacher ◽  
Preliminary Information ◽  
Learning Concept

Tujuan dari penelitian ini adalah untuk memperoleh gambaran mengenai berbagai konsepsi dan miskonsepsi yang ada pada siswa, mahasiswa calon guru fisika, dan guru fisika terkait konsep cahaya dalam pembelajaran fisika. Pengumpulan data pada penelitian ini yaitu dengan melakukan analisis terhadap 25 artikel tentang gambaran konsepsi siswa, mahasiswa calon guru, dan guru fisika tentang konsep cahaya dalam pembelajaran fisika. Hasil penelitian ini adalah gambaran konsepsi siswa, mahasiswa calon guru, dan guru fisika tentang konsep cahaya dalam pembelajaran fisika yang dapat menjadi informasi awal untuk mengembangkan penelitian berkelanjutan berupa program pembelajaran atau program perkuliahan untuk meremediasi miskonsepsi yang dimiliki siswa.Kata kunci: Konsepsi, Miskonsepsi, Pembelajaran Fisika, Konsep Cahaya. The purpose of this study is to obtain a description of the various conceptions and misconceptions in students, physics teacher candidates, and physics teachers about concept of light in physics learning. The data collection in this research is by analyzing 25 articles about the concept of student's conception, student of teacher candidate, and physics teacher about light concept in physics learning. The result of this research is a description of student conception, student of teacher candidate, and physics teacher about light concept in physics learning which can be preliminary information to develop continuous research in the form of learning program or lecture program to remediate misconception owned by students.Keywords: Conception, Misconception, Physical Learning, Concept of Light.

Assessing Professional Vision in Teacher Candidates

2015 ◽  
Vol 223 (1) ◽  
pp. 54-63 ◽  
Author(s):  
Kathleen Stürmer ◽  
Tina Seidel
Keyword(s):  
Teacher Education ◽  
Preservice Teachers ◽  
Prospective Teachers ◽  
Teacher Candidates ◽  
Teaching And Learning ◽  
Assessment Tool ◽  
Research Tool ◽  
Induction Phase ◽  
Professional Vision ◽  
Test Items

In this study, we present an approach to validating the video-based Observer Extended Research Tool, which empirically captures prospective teachers’ professional vision in a standardized yet contextualized way. We extended the original Observer tool with the aim of providing a reliable, efficient measure for subpopulations in different consecutive phases of teacher education (university and induction phase). Therefore, we expand the measure to include a broader spectrum of knowledge about effective teaching by drawing on a cognitive process-oriented teaching and learning model while at the same time the number of test items is shortened to ensure a economically manageable assessment tool. In the validation study, we tested the extent to which the extension meets the criteria of context validity, reliability, and sensitiveness for different subpopulations. The participants were 317 preservice teachers and teacher candidates who worked with the Observer Extended Research Tool. Measurement quality was investigated using methods of item response theory. Our results confirm that the Observer Extended Research Tool provides a reliable measure of description, explanation, and prediction as aspects of professional vision within and across different subpopulations in teacher education.

Ohm's Law and Kirchhoff's Second Law

1938 ◽  
Vol 6 (5) ◽  
pp. 282-282
Author(s):  
R. D. Summers
Keyword(s):  
Second Law ◽  
Ohm’S Law ◽  
Ohm's Law

scholarly journals An Observable Prerequisite for the Existence of Persistent Currents

2018 ◽  
Author(s):  
Jacob Szeftel ◽  
Nicolas Sandeau ◽  
Michel Abou Ghantous
Keyword(s):  
Classical Model ◽  
Second Law Of Thermodynamics ◽  
Superconducting Materials ◽  
Second Law ◽  
Persistent Currents ◽  
Joule Effect ◽  
Ohm’S Law ◽  
Normal Metals ◽  
Superconducting Sample ◽  
Ohm's Law

A classical model is presented for persistent currents in superconductors. Their existence is argued to be warranted because their decay would violate the second law of thermodynamics. This conclusion is achieved by analyzing comparatively Ohm's law and the Joule effect in normal metals and superconducting materials. Whereas Ohm's law applies in identical terms in both cases, the Joule effect is shown to cause the temperature of a superconducting sample to \textit{decrease}. An experiment is proposed to check the validity of this work in superconductors of both types I and II.

scholarly journals The Effect of Project Exhibition Event on Physics Success and Prospective Teachers’ Opinions about Projects

2018 ◽  
Vol 29 (1) ◽  
pp. 39-48
Author(s):  
Ezgi Güven Yıldırım ◽  
◽  
Ayşe Nesibe Köklükaya ◽  
Keyword(s):  
Prospective Teachers ◽  
Teacher Candidates ◽  
Qualitative Data ◽  
Project Based Learning ◽  
Research Model ◽  
Physics Teacher ◽  
Quantitative And Qualitative Research ◽  
Significant Difference ◽  
Post Test ◽  
Research Show

The purposes of this study were first to investigate the effects of the project-based learning (PBL) method and project exhibition event on the success of physics teacher candidates, and second, to reveal the experiment group students’ views toward this learning method and project exhibition. The research model called explanatory mixed method, in which both quantitative and qualitative research methods were used. The findings obtained from the research show that there was a significant difference in favor of the experiment group among the point averages of the achievement post-test of the groups. When the findings regarding the questions posed to prospective teachers were examined, it was seen that while they stated that there were a few disadvantages of PBL and project exhibition event, there were many advantages. The results obtained from the quantitative and qualitative data of the research showed that PBL contributed positively to the teaching process and learning characteristics in many aspects.

scholarly journals Problem Solving Approach in Electrical Energy and Power on Students as Physics Teacher Candidates

2017 ◽  
Vol 6 (1) ◽  
Author(s):  
C. Riantoni ◽  
L. Yuliati ◽  
N. Mufti ◽  
N. Nehru
Keyword(s):  
Problem Solving ◽  
Conceptual Understanding ◽  
Physics Education ◽  
Teacher Candidates ◽  
Electric Circuit ◽  
Electrical Energy ◽  
Physics Teacher ◽  
Scientific Approach ◽  
Basic Physics ◽  
The Subject

<p>In agreement with students’ conceptual understanding, identifying of problem solving is an important part of physics. This article is to identify the approach used by students in solving a physics problem. The subject of the research were students of physics education year 2014 in Jambi University who had joined basic physics class. The instruments used in this research were DIRECT (determining and interpreting resistive electric circuit concept test) (Engelhardt &amp; Beichner, 2004). Based on the result, 34,1% students still used the memory based approach in problem solving, 52,3% of them used no clear approach, 4,5% used structured manner, 6,82% used unstructured manner and only 2,27% students used a scientific approach to solving the problem. The result showed that many students used no clear approach and memory based approach to solve the problem. It mean that they did not use physics concept in solving the problem and generally they only used the equation they memorized related to the problem they ever did before.</p>

Tungsten Filament Heating Effects

2007 ◽  
Vol 15 (6) ◽  
pp. 40-43
Author(s):  
Paul Beauregard
Keyword(s):  
Tungsten Filament ◽  
Ohm’S Law ◽  
Heating Effects ◽  
Burn Out ◽  
The Subject ◽  
Ohm's Law

The subject of SEM saturation was discussed on the microscopy list server and off list I was aslied why filaments burn out on the side leg Instead of at the tip. I have degrees in electronics technology and in chemistry as well as being a microscopist. So I investigated this subject and performed some experiments to verify my results.According to Ohm's Law, one would expect that the highest resistance would be at a sharply bent V’ and that is where the filament would be expected to burn out. However, observations of the phenomenon show this is not where the filament burns out.

5. On a New Telephone Receiver

1880 ◽  
Vol 10 ◽  
pp. 682-685
Author(s):  
Chrystal
Keyword(s):  
Small Diameter ◽  
Ohm’S Law ◽  
Fine Wire ◽  
The Subject ◽  
Unit Of Length ◽  
Ohm's Law ◽  
Longitudinal Extension

The experiment which forms the subject of this communication was originally devised as an illustration of the explanation of all kinds of microphone receivers, suggested by the beautiful experiments of Mr Blyth, on loose contacts. My idea was to replace Mr Blyth's heated point of metal by a continuous portion of the circuit which should act in the same manner.It was obvious, for two reasons, that this part must be of small diameter; 1st, in order that the resistance, per unit of length, might be great enough to make the variation of the heating sufficient to cause sensible longitudinal extension; 2d, in order that the section might be small enough to allow sensible cooling in, say the of a second. I had reason beforehand to believe that the second of these conditions could be fulfilled in practice; because, I found in my experiments on Ohm's Law (Brit. Ass. Rep. 1876, p. 58, et seq.) that, when currents of two different strengths alternated, even with great rapidity (60 times per second) in a fine wire, the resistance was sensibly higher during the passage of the stronger current.

STRATEGI PRODUK BORDIR DI KAPALO KOTO, KOTO TANGAH SIMALANGGANG, KOTA PAYAKUMBUH (Studi Kasus di Usaha Bordir Limpapeh”s Kebaya)

2019 ◽  
Vol 8 (1) ◽  
pp. 111
Author(s):  
Riris Susiani ◽  
Ernawati Ernawati
Keyword(s):  
Rapid Development ◽  
Secondary Data ◽  
Export Market ◽  
Product Strategy ◽  
Analysis Techniques ◽  
Product Service ◽  
Qualitative Descriptive ◽  
The Subject ◽  
The Times ◽  
Descriptive Method

AbstrakMasalah dalam penelitian ini yaitu pentingnya strategi produk dalam menjalankan sebuah usaha agar mampu bertahan dan bersaing  dengan perusahaan lain yang sejenis dalam kondisi persaingan yang ketat dan perkembangan zaman yang sangat cepat. Strategi produk sangat diperlukan dalam mememenuhi tuntutan konsumen seperti meningkatkan kualitas, menciptakan merek, pelayanan serta jaminan terhadap produk yang ditawarkan agar usaha mampu berkembang. Limpapeh”s Kebaya adalah usaha yang sedang berkembang dan telah mampu memasarkan produk bordirnya hingga menembus pasar ekspor. Penelitian ini bertujuan untuk mendeskripsikan strategi produk bordir di Limpapeh”s Kebaya, Kapalo Koto, Koto Tangah Simalanggang, Kota Payakumbuh. Metode penelitian menggunakan metode deskriftif kualitatif, jenis data berupa data primer dan  sekunder. Teknik pengumpulan data melalui observasi, wawancara dan dokumentasi. Teknik analisis data dilakukan dengan teknik analisa model interaktif yang berkaitan dengan pokok permasalahan yaitu dengan model reduksi data, penyajian data dan pengambilan kesimpulan. Hasil penelitian yaitu strategi produk yang dilakukan di Limpapeh”s Kebaya adalah dimulai dari menciptakan produk bordir yang berkualitas, desain motif bordir yang up to date dan kreatif, menyediakan ukuran yang special, memberi merek pada produk bordir, memberi kemasan yang menarik (paperbag) dan serbaguna, pelayanan yang cepat, tepat dan ramah serta pemberian jaminan terhadap produk border.Kata Kunci: strategi produk, pelayanan, bordir. AbstractThe problem in this study is the importance of product strategy in running a business in order to be able to survive and compete with other similar companies in conditions of intense competition and very rapid development of the times. Product strategy is very necessary in fulfilling consumer demands such as improving quality, creating brands, services and guarantees for products offered so that businesses are able to grow. Limpapeh's Kebaya is a growing business and has been able to market its embroidery products to penetrate the export market. This study aims to describe the strategy of embroidery products in Limpapeh's Kebaya, Kapalo Koto, Koto Tangah Simalanggang, Payakumbuh City. The research method uses qualitative descriptive method, the type of data in the form of primary and secondary data. The technique of collecting data through observation, interviews and documentation. Data analysis techniques are carried out with interactive model analysis techniques that are related to the subject matter, namely with a model of data reduction, data presentation and conclusion. The results of the research, namely the product strategy carried out at Limpapeh's Kebaya, are started from creating quality embroidery products, up-to-date and creative embroidery motifs, providing special sizes, giving brands to embroidery products, giving attractive packaging (paperbag) and versatile, fast, precise and friendly service and guarantee of embroidery products. Keywords: product, service, embroidery strategy.

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