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INDONESIA
Lensa : Jurnal Kependidikan Fisika
Published by IKIP Mataram
ISSN : 23384417     EISSN : 23384417     DOI : -
Core Subject : Science, Education,
Education Physics
Lensa: Jurnal Kependidikan Fisika (J-LKF) published by the Physics Education Study Program Faculty of Mathematics and Natural Sciences (FPMIPA) IKIP Mataram. Contains scientific articles in the form of research and literature. Published every 6 months, including a study of science and teaching in the field of Physics in Indonesian and English.
Arjuna Subject : Ilmu Sosial - Pendidikan
Articles 113 Documents
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THE EFFECT OF PROCESS ORIENTED GUIDED INQUIRY LEARNING (POGIL) MODEL ON STUDENTS' CONCEPTS MASTERY Pradiyanasari, Ni Wayan Erisca; Verawati, Ni Nyoman Sri Putu; Doyan, Aris
Lensa: Jurnal Kependidikan Fisika Vol 8, No 1: June 2020 (in Press)
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/j-lkf.v8i1.2776

Abstract

This study aims to determine the effect of the Process Oriented Guided Inquiry Learning (POGIL) model on the students? concept mastery in SMAN 6 Mataram, subject matter of harmonious vibration. This study is a quasi-experimental research with a pretest-posttest control group design. The population was all students of class X MIA at SMAN 6 Mataram in the 2018/2019 academic year totaling 172 students, with purposive sampling technique obtained by class X MIA 1 as an experimental class and class X MIA 3 as a control class. The concept mastery test instrument uses multiple choice questions totaling 25 items. The concept mastery data obtained were analyzed using t-test with a significance level (?) of 5%. Hypothesis test results indicate that the t-count is greater than t-table, that is 2.482 is greater than 2.020, so that H0 is rejected and Ha is accepted. Thus, there is an effect of the Process Oriented Guided Inquiry Learning (POGIL) model on students' concept mastery.
EFFECTIVENESS OF PROBLEM BASED LEARNING MODEL WITH WORKSHEET ASSISTED ON STUDENTS' CRITICAL THINKING ABILITY Rahayu, Satutik; Verawati, Ni Nyoman Sri Putu; Islamiah, Andi Fatimatul
Lensa: Jurnal Kependidikan Fisika Vol 7, No 2: December 2019
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/j-lkf.v7i2.2686

Abstract

This research aims to know the effectiveness of the learning problem based learning model assisted worksheet for the critical thinking ability of physics students of grade X SMAN 1 Lingsar. This was an experiments research that using design research Posttest-Only Control group Design. The population in this research were the whole grade X SMA Negeri 1 Lingsar in academics year 2016/2017. Sampling taken with using cluster random sampling technique with the students of class X MIA.A as experiment class and X MIA.D as control class. Research hypothesis was analysis with the t-test for one party (the party right). Based on the hypothesis test results obtained tcount> ttable at significance level of 5%, then it can be inferred that the model of learning problem based learning assisted work sheet effective for critical thinking ability of physics students SMAN 1 Lingsar.
GRAPHENE-AU FILM SYNTHESIZED FROM GRO IN AU-AQUAEUS SOLUTION AS COUNTER ELECTRODE FOR DSSC APPLICATION Umar, Marjoni Imamora Ali
Lensa: Jurnal Kependidikan Fisika Vol 7, No 2: December 2019
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/j-lkf.v7i2.2644

Abstract

The study on the optical, electrical properties of multilayer graphene (MLG) obtained by thermal-reduction of graphene oxide (GrO) which was synthesized directly by mixing graphite oxide (GO) flake in 0.005, 0.01, 0.015, and 0.02 M of Au aqueous solution has been successfully performed. The resultant  GrO was subjected to an annealing temperature of 200°C, 400°C, 500°C for 1h to obtain MLG, and G-Au2x, G-Au4x, and G-Au5x (x=.0.005, 0.01, 0.015, and 0.02). The resultant samples were then characterized using FESEM, UV-VIS, four-point probe measurements to study its morphology, optical, and electrical properties. The transmission G-Au increase and its sheet resistant decrease as an increase of annealing temperature. Besides, the annealing treatment was then achieved of its microstructure which is expected may be used as a counter electrode in solar cell applications. The best DSSC devices with Quartz/FTO/ZnO Nanorods/Dye/G-Au50.01/Quartz structures have resulted in current-density, Voc, and solar cell performance of 0.1 mA/cm2, 0.42 V, and 0.01%, respectively.

Page 12 of 12 | Total Record : 113

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