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All Journal Jurnal Pendidikan Matematika dan IPA Jurnal Pendidikan Fisika Puitika Kappa Journal JURNAL PENDIDIKAN MIPA Eduproxima : Jurnal Ilmiah Pendidikan IPA Gagasan Pendidikan Indonesia Didaktika: Jurnal Kependidikan Journal of Educational Sciences Edu Research : Jurnal Penelitian Pendidikan Prosiding Seminar Nasional Humaniora Al-Irsyad Journal of Physics Education JURNAL FIRNAS Estungkara: Jurnal Pengabdian Pendidikan Sejarah Jurnal Pengabdian Masyarakat Pinang Masak JIPI (Jurnal IPA dan Pembelajaran IPA) JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah)
Jeliana Veronika Sirait
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Journal : JURNAL FIRNAS

 1 
PENENTUAN NILAI KALOR JENIS LOGAM MENGGUNAKAN METODE KALORIMETER BERDASARKAN ASAS BLACK Minartih, Sri; Syakiraturrahmah; Veronika Sirait, Jeliana
JURNAL FIRNAS Vol. 7 No. 1 (2026): Volume 7
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/jurnal firnas.v7i1.11042

Abstract

Abstract: This study aims to determine the specific heat values of three types of metals, namely aluminum, brass, and copper, using the calorimeter method based on Black's Principle. The experiment was carried out by heating the metals to a certain temperature and then transferring them into a calorimeter containing water. The equilibrium temperature was recorded to calculate the heat absorbed by the water and the heat released by the metals. The results showed that the average specific heat values obtained were 0.42 cal/g℃ for aluminum, 0.16 cal/g℃ for brass, and 0.13 cal/g℃ for copper. These results are consistent with the theoretical values, although there are deviations caused by heat loss to the environment and limitations of the measuring instrument. Critical analysis identified that the use of an analog thermometer and suboptimal calorimeter insulation were the main factors of inaccuracy. As a recommendation, the use of a digital temperature sensor and the addition of thermal insulation can improve measurement accuracy. This study concluded that the calorimeter method can be used to determine the specific heat of metals with a sufficient level of confidence, provided that interfering factors can be minimized.
EKSPERIMEN PENENTUAN CEPAT RAMBAT BUNYI DI UDARA DENGAN ALAT PRAKTIKUM PADA DUA UKURAN PIPA Kristina Neftalia Sihombing, Kristina; Yuli Yanti, Tika; Veronika Sirait, Jeliana
JURNAL FIRNAS Vol. 7 No. 1 (2026): Volume 7
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/jurnal firnas.v7i1.11221

Abstract

Abstract: The design of this sound resonance lab tool was made to compare the speed of sound propagation in the air in two types of pipes, namely small and large diameter pipes. The working principle of the tool is based on the resonance phenomenon that appears when the pipe is dipped in water, then the length of the air column that produces harmonic tones is sought using a frequency generator application at 1250, 1500, and 1750 Hz. The simple and easy-to-use tool design helps expedite the experimental process. From the results of the experiment on a small pipe, for frequencies of 1250, 1500, and 1750 Hz, the length of the air column was obtained as 13.603 cm, 11.33 cm, and 9.73 cm, respectively, with sound speeds of around 340, 340, and 340.5 m/s. In the large pipe, the results were almost the same: air column lengths of 13.6 cm, 11.34 cm, and 9.73 cm with sound speeds of 340, 340, and 340.5 m/s, respectively. From all these measurements, it can be concluded that there is no significant difference between the small and large pipes. The pattern of the relationship between frequency and air column length also remains the same, namely, the higher the frequency, the shorter the length of the resonating air column. Meanwhile, the speed of sound in air remains in a constant range, namely between 340 and 340.5 m/s.
Co-Authors -, Maison AJ, Suharli Ananda, M. Fadhil Raga Andina Puspita Anggi Triandana Anggrini, Rindy Puspita Aprilia Kartika Putri Astalini Ayuni, Frety Dani, Rahma Emanauli Erlida Amnie Fauziah Fiardilla Firdiawan Ekaputra Furqon, M Haerul Pathoni, Haerul Harahap, Mely Chelvina Hartika Dewi Hebat Shidow Falah Hendri*, Menza Hendri, Menza Jufrida Jufrida Kiranti, Reva Dwi Kristina Neftalia Sihombing, Kristina Lailatul Lestari, Neneng M. Hidayat Makmur Sirait Marsia Deswita Habeahan Mega Fatimah Rosana Meri Arisandi Minartih, Sri Mursyd, Danial Nafisa Maharani Nehru Nurdin Bukit Raiza Sevina Rasmi, Dian Pertiwi Rizki Maulida Rizki Maulida, Rizki Rizki Maulida, Rizki Maulida Siahaan, Asnidar Sinaga, Lastama Sinuraya, Wina Tiodora Br Siti Fitriah Syakiraturrahmah Ulil Amri Yernisa Yernisa Yoga Mestika Putra Yuli Yanti, Tika Zubaidah