Melati, Bunga Chinta
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RANCANGAN THREE-O DENGAN SUMBER DAYA ENERGI KINETIK SEBAGAI INOVASI PENENTU ARAH DAN WAKTU SALAT Aulliyah, Uunwanah Agustin; Melati, Bunga Chinta; Prasettia, Sukma; Kusumah, Fuji Hernawati
ELFALAKY: Jurnal Ilmu Falak Vol 8 No 1 (2024): Juni
Publisher : UIN ALAUDDIN MAKASSAR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/ifk.v8i1.48534

Abstract

Every Muslim in the world has an obligation to perform prayers, and one of the two valid conditions for prayer is facing the Qibla (the direction of the Ka’bah in Mecca) and praying at the designated times. The challenge arises when someone is in an unfamiliar place where the Qibla direction is unknown. Additionally, prayer times continuously change based on the position of the sun. To address these challenges, the goal of this research is to design a device that can determine the Qibla direction without relying on electricity, signals, internet, or specialized knowledge. This renewable solution aligns with the Sustainable Development Goals (SDGs). The conclusion from this design is successful, resulting in a practical and efficient product for the community, with an average score of 71.4% based on the questionnaire.
Proving the Resonance of DO, RE, MI, FA, SOL, LA, SI, High DO Tones by Comparing Frequency of Sound Produced by Wine Glasses Ramadhani, Hanifah Asma; Syamra, Fifi Mufida; Melati, Bunga Chinta; Pasaribu, Ibrahim Farisya; Kusumah, Fuji Hernawati
KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA Vol 9 No 02 (2024): KONSTAN (Jurnal Fisika dan Pendidikan Fisika)
Publisher : Universitas Islam Negeri (UIN) Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20414/konstan.v9i02.414

Abstract

Due to the lack of standard laboratory facilities in many schools in Indonesia, the researcher created a simple musical instrument based on the concept of sound physics. The research was to prove the phenomenon of ‘resonance’ with the frequency comparison of the sound from ‘wine glasses’. Eight identical glasses filled with water at different heights to produce the do, re, mi, fa, sol, la, si, and do. The results showed the longer the air column, the higher the frequency of the sound produced. The sound produced by the glasses filled with less water was louder than the glasses filled with more water. This happened because of the resonance between the sound waves produced by the glasses and the sound waves propagating in the tube. Thus, it was following the theory. It could be used in the laboratory. As suggested, the researcher used tall and straight wine glasses to make it easier.
Comparative Study of Students' Conceptual Understanding in Two Different Curricula on the Light and Electromagnetic Waves Materials Melati, Bunga Chinta; Permana Suwarna, Iwan; Hertanti, Erina
Jurnal Pendidikan Matematika dan Sains Vol. 13 No. 2 (2025): December 2025
Publisher : Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpms.v13i2.87915

Abstract

Conceptual understanding involves a deep comprehension of a concept, including the ability to explain, illustrate, and apply it in various contexts. This study aims to compare students’ levels of conceptual understanding under the Kurikulum Merdeka and the Cambridge Curriculum. A comparative descriptive method with a mixed-methods approach was used, employing a six-tier diagnostic test, interviews, and classroom observations. The sample consisted of 60 students selected through purposive sampling. The results showed that students following the Kurikulum Merdeka had a higher percentage of scientific understanding (43.4%) compared to those in the Cambridge Curriculum (20.3%). These findings indicate that the effectiveness of instruction is influenced not only by the curriculum strategy but also by factors such as the timing between instruction and assessment, students’ confidence in their responses, and language barriers. Therefore, instructional approaches should be aligned with students’ cognitive readiness and contextual conditions to optimize conceptual understanding.