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All Journal Phydagogic : Jurnal Fisika dan Pembelajarannya Lontar Physics Today
Mahombar, Alexander
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Astronomy Education Physics Other

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ANALISIS PEMAHAMAN KONSEP DAN KENDALA PEMAHAMAN KONSEP MATERI GETARAN DAN GELOMBANG Mahombar, Alexander
PHYDAGOGIC : Jurnal Fisika dan Pembelajarannya Vol 6 No 2 (2024): Phydagogic : Jurnal Fisika dan Pembelajarannya
Publisher : PHYDAGOGIC : Jurnal Fisika dan Pembelajarannya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31605/phy.v6i2.3683

Abstract

Jurnal ini bertujuan untuk menganalisis pemahaman konsep dan kendala-kendala yang dihadapi oleh siswa dalam memahami konsep materi getaran dan gelombang. Penelitian dilakukan dengan menggunakan metode penelitian deskriptif untuk mendeskripsikan hasil instrumen survey. Sampel dalam penelitian ini sebanyak 20 siswa kelas XII MIPA 1 dan 20 siswa kelas XI MIPA 2 di SMA Katolik Sibolga. Pada penelitian ini menghasilkan kesimpulan sebagai berikut: 1) Siswa masuk dalam kategori sedang dalam hal pemahaman konsep materi getaran dan gelombang dengan persentase 35%. 2) Kendala tertinggi pada pemahaman konsep materi getaran dan gelombang disebabkan karena kurangnya sumber daya pendukung dan kurangnya praktik atau eksperimen langsung dalam proses pelajaran fisika di sekolah dengan persentase 87,5%.
Digital Experiments in Learning the Concept of Gravitational Force in Classical Mechanics Mahombar, Alexander
Lontar Physics Today Vol 4, No 3 (2025): November 2025
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/lpt.v4i3.25245

Abstract

Gravitational force is one of the fundamental forces that plays an important role in understanding the interaction between massive objects in the universe. However, in physics education, this concept is often difficult to understand concretely due to the limitations of real experiments. This research purpose to analyse the relationship between mass, distance, and gravitational force using the PhET Gravity Force Lab: Basics interactive simulation, as well as to prove its conformity with Newton's Law of Gravity. The research method used was a virtual experiment with a quantitative descriptive approach. Data was obtained by conducting three stages of experiments, namely observing gravitational force on objects of the same and different masses, the relationship between force and mass at a fixed distance, and the relationship between force and distance at a fixed mass. The results showed that gravitational force increased as the mass of objects increased and decreased significantly when the distance between objects increased. The conclusion of this study was that it proved the theory that gravitational force is directly proportional to the product of the masses of the two objects and inversely proportional to the square of the distance between them, in accordance with Newton's Law of Gravity, and showed that the forces were opposite but equal in magnitude, as described in Newton's Third Law.
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