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All Journal Edufisika: Jurnal Pendidikan Fisika JURNAL PENDIDIKAN, SAINS DAN TEKNOLOGI
Daud, Anis Nazihah Mat
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Humanities Computer Science & IT Education Mathematics Physics Social Sciences Other

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THE EFFECT OF FREQUENCY ON THE ELASTIC PROPERTIES OF MATERIALS Maiyena, Sri; Ayop, Shahrul Kadri; Daud, Anis Nazihah Mat
EduFisika: Jurnal Pendidikan Fisika Vol 9 No 2 (2024): EduFisika: Jurnal Pendidikan Fisika Volume 9 Nomor 2 August 2024
Publisher : Program Studi Pendidikan Fisika FKIP Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59052/edufisika.v9i2.36578

Abstract

The elastic properties measurement of materials is important to determine their potential application in industries. Hence, the effect of frequency on the elastic properties is crucial in estimating the material's behavior with the change of frequency. Thus, this study was conducted to determine the effect of frequency on the elastic properties of materials. Five parameters of elastic materials were found in this study: bulk modulus, shear modulus, longitudinal modulus, Young's modulus, and lame constant. The elastic properties of three samples; stainless steel, aluminium and PMMA were measured for 2.25 MHz, 5 MHz and 10 MHz frequency. The method used is non-destructive testing using pulse-echo ultrasound techniques. The findings indicated that the longitudinal modulus, Young's modulus, shear modulus, bulk modulus, and lame constant of all samples are constant as the frequency increased from 2.25 MHz to 10 MHz. In conclusion, the elastic properties of a material are independent to the change of frequency. 
ANALYSIS OF FACTORS AFFECTING THE COMPETENCY OF PHYSICS TEACHERS IN WEST SUMATRA PROVINCE Hendri, Weria; Alias, Siti Nursaila; Daud, Anis Nazihah Mat; Halim, Anis Diyana
PENDIDIKAN SAINS DAN TEKNOLOGI Vol 12 No 3 (2025)
Publisher : STKIP PGRI Situbondo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47668/edusaintek.v12i3.1533

Abstract

Teachers’ competency plays a vital role in improving the quality of their teaching. Hence, this research was performed to analyse the factors affecting the Competency of Physics teachers in West Sumatra Province. This research employs a quantitative research design with a survey method. A total of 37 Physics teachers from junior and senior high schools in West Sumatra Province were selected as respondents of the research using the purposive sampling technique. A questionnaire was used as the primary instrument for this research. The finding indicated that most respondents agreed that a physics teacher's pedagogical, social, personality, and professional competencies in West Sumatra Province were significantly influenced by the self-concept (95%) and communication skills (100%). The respondents also suggested that Physics teachers should have digital literacy skills and support from school management to improve their competency level. The findings of this study can be used as a reference to develop the competency model of a Physics teacher in West Sumatra Province.
Co-Authors Alias, Siti Nursaila Ayop, Shahrul Kadri Halim, Anis Diyana Hendri, Weria Sri Maiyena