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All Journal Phi : Jurnal Pendidikan Fisika dan Terapan Berkala Ilmiah Pendidikan Fisika
Muhammad Zahran
Universitas Pendidikan Indonesia
Earth & Planetary Sciences Education Engineering Physics Other

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Mengukur percepatan gravitasi bumi di beberapa Kota di Indonesia dan Turki dengan mudah: Implementasi Video-based Laboratory berbantuan software tracker. Studi kasus di Pulau Jawa, Kepulauan Riau, dan Istanbul. Natania Carmenita Medellu; Muhammad Zahran; Ika Mustika Sari; Tri Utomo Budi
Jurnal Phi Jurnal Pendidikan Fisika dan Fisika Terapan Vol 4, No 2 (2023)
Publisher : Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/p-jpft.v4i2.17239

Abstract

ABSTRAK. Percepatan gravitasi bumi merupakan materi fisika yang dipelajari di sekolah. Dalam literatur, nilai percepatan gravitasi bumi sudah ditentukan yaitu sebesar 9,8  atau sering dibulatkan menjadi 10 Faktanya, percepatan gravitasi bumi di setiap tempat bervariasi tergantung pada beberapa faktor, salah satunya jarak suatu tempat terhadap permukaan bumi. Oleh karena itu, penelitian ini bertujuan untuk mengukur percepatan gravitasi bumi di beberapa Kota di Indonesia dan Turki tepatnya di Kota Bandung, Yogya, Riau, dan Istanbul menggunakan analisis gerak jatuh bebas. Dalam pembuktiannya, peneliti mengimplementasikan Video-based Laboratory menggunakan software tracker yang siap dipakai untuk mengukur percepatan gravitasi di berbagai wilayah yang berbeda. Pengukuran dilakukan dengan cara menganalisis rekaman video gerak jatuh bebas yang diambil pada beberapa wilayah tersebut. Hasil analisis menunjukkan bahwa percepatan gravitasi bumi di Bandung, Yogya, Riau dan Istanbul secara berturut-turut ialah 9,69, 9,77, 9,78, dan 9,76. Hasil ini mendekati nilai percepatan gravitasi bumi dalam literatur dan berhasil membuktikan variasi nilai percepatan gravitasi bumi berdasarkan perbedaan jarak kota tersebut terhadap permukaan bumi. Maka dari itu, disimpulkan bahwa pengimplementasiian Video-based Laboratory berbantuan software tracker dapat menjadi opsi proses pengukuran percepatan gravitasi bumi di berbagai wilayah dengan mudah.
Identifying Students’ Conceptions on Sound Wave via the Sound Wave Four Tier (SOFT) Diagnostic Test Amalia Weka Gani; Achmad Samsudin; Lina Aviyanti; Adam Hadiana Aminudin; Fatah Kurniawan; Muhammad Zahran; Jajang Kunaedi; Hasan Ozgur Kapici
Berkala Ilmiah Pendidikan Fisika Vol 11, No 3 (2023)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/bipf.v11i3.16903

Abstract

This paper aimed to assess the validity of the Sound Wave Four Tier (SOFT) Diagnostic Test that can be used to identify students' conception profiles. Using the Four Design (The participants were 42 students aged 15-17 years old in one of the public high schools in Bandung City. The participants were 42 students aged 15-17 in one of the public high schools in Bandung City. The data's validity, the instrument's reliability, and the distribution of students' conceptions were analyzed using the Rasch model with the MINISTEP 4.5.3.0 program. The dimensional-based validity of the items used was valid. Accuracy based on Cronbach Alpha (α) was in the high category, the item reliability score was in the good category, and the reliability of personnel was in the low category. The conception profile of the students categorized as. Sound Understanding (SU), Partial Positive (PP), Partial Neutral (PNt), Partial Negative (PNg), Misconception (MC), No Understanding (NU), and No Coding (NC). The highest category of conception found was MC. There were a lot of misconceptions found in the sound wave material. Students' Misconceptions are still commonly found in sound waves. A 4D model can be developed using Rasch modeling analysis to identify students' profiles. Utilizing the SOFT instrument enables students to gain a broader understanding of the concept, including verbal statements and various representations of images and mathematical symbols.
Identifying Students’ Conceptions on Sound Wave via the Sound Wave Four Tier (SOFT) Diagnostic Test Amalia Weka Gani; Achmad Samsudin; Lina Aviyanti; Adam Hadiana Aminudin; Fatah Kurniawan; Muhammad Zahran; Jajang Kunaedi; Hasan Ozgur Kapici
Berkala Ilmiah Pendidikan Fisika Vol 11, No 3 (2023)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/bipf.v11i3.16903

Abstract

This paper aimed to assess the validity of the Sound Wave Four Tier (SOFT) Diagnostic Test that can be used to identify students' conception profiles. Using the Four Design (The participants were 42 students aged 15-17 years old in one of the public high schools in Bandung City. The participants were 42 students aged 15-17 in one of the public high schools in Bandung City. The data's validity, the instrument's reliability, and the distribution of students' conceptions were analyzed using the Rasch model with the MINISTEP 4.5.3.0 program. The dimensional-based validity of the items used was valid. Accuracy based on Cronbach Alpha (α) was in the high category, the item reliability score was in the good category, and the reliability of personnel was in the low category. The conception profile of the students categorized as. Sound Understanding (SU), Partial Positive (PP), Partial Neutral (PNt), Partial Negative (PNg), Misconception (MC), No Understanding (NU), and No Coding (NC). The highest category of conception found was MC. There were a lot of misconceptions found in the sound wave material. Students' Misconceptions are still commonly found in sound waves. A 4D model can be developed using Rasch modeling analysis to identify students' profiles. Utilizing the SOFT instrument enables students to gain a broader understanding of the concept, including verbal statements and various representations of images and mathematical symbols.
Co-Authors Achmad Samsudin Amalia Weka Gani Aminudin, Adam Hadiana Fatah Kurniawan Hasan Ozgur Kapici Hasan Ozgur Kapici Ika Mustika Sari Jajang Kunaedi Lina Aviyanti Natania Carmenita Medellu Tri Utomo Budi