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All Journal Jurnal Pendidikan Fisika FKIP UM Metro Schrodinger : Jurnal Ilmiah Mahasiswa Pendidikan Fisika
Novyatun Latifah
Universitas Indraprasta PGRI
Astronomy Education Physics

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ANALOGI WAKTU PARUH DAN KONSTANTA PELURUHAN (DISINTEGRASI) RADIOAKTIF Dita Safitrianaz; Novyatun Latifah; Pia Yuningsih Saragih; Dandan Luhur Saraswati
Jurnal Pendidikan Fisika Vol 7, No 2 (2019)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/jpf.v7i2.1780

Abstract

Telah dilakukan percobaan menggunakan gelas ukur untuk menganalogikan peluruhan radioaktif yang mudah dipahami. Tujuan dari percobaan ini untuk menentukan waktu paruh dan konstanta peluruhan dari analogi radioaktif. Metode penelitian ini dilakukan dengan variasi tinggi dari masing-masing lubang pada gelas ukur dengan ketinggian 13 cm ; 22 cm ; 28 cm ; 31,5 cm dan 34,5 cm yang dilakukan pengulangan sebanyak 5 kali untuk setiap lubang. Dari hasil percobaan diperoleh waktu paruh (T) dari masing-masing lubang T1 = 0 s, T2 = 14,656 s, T3 = 17,532 s, T4 = 18,416 s, T5 = 21,798 s dengan konstanta peluruhan (λ) dari masing-masing lubang λ1 = 0 s-1, λ2 = 0,0472 s-1, λ3 = 0,0395 s-1, λ4 = 0,0376 s-1, λ5 = 0,0317 s-1. Berdasarkan hasil percobaan tersebut dapat disimpulkan bahwa hubungan antara waktu paruh dengan konstanta peluruhan berbanding terbalik karena semakin lama waktu paruh yang didapatkan maka semakin kecil nilai konstanta peluruhan.Kata Kunci: Waktu Paruh, Konstanta Peluruhan, Radioaktif
Pengembangan Modul IPA Terpadu Problem-Based Learning (PBL) Dengan Tema Energi Sebagai Sumber Kehidupan SMP/MTs Novyatun Latifah; Indica Yona Okyranida; Asep Setiadi
Schrodinger Jurnal Ilmiah Mahasiswa Pendidikan Fisika Vol 1, No 1 (2020): Schrödinger: Jurnal Ilmiah Mahasiswa Pendidikan Fisika
Publisher : UNIVERSITAS INDRAPRASTA PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (511.978 KB) | DOI: 10.30998/sch.v1i1.3072

Abstract

The purpose of the research is to design and develop an Integrated Science Module based on Problem-Based Learning (PBL), in addition, in addition, researchers also want to know the results of the student response to the trial of this Integrated Science Module product for junior high school students (junior high school) and equivalent. The research method used in this study is research and develompent method with ADDIE development model. The population is students of SMP Muhamadiyah Pabuaran, with suchrt scale research techniques. The instruments used are validation tests and student response tests in the form of questionnaires. Data analysis techniques use descriptive analysis techniques that calculate the percentage of validation values. The results of the study obtained an average score of 75% for media experts with the categories "good" and "decent", an average score of 83.3% for material experts and an average of 80.86% for language experts from the results containing that the development of a Problem Based Learning Based Integrated IPA module (PBL) with the Theme of Energy as a Source of Life SMP /MTS got the category " very feasible" tested in schools. In addition, the results of the student response test got 90.67% results with the category "very feasible" used as a learning medium in the school. The results of this study are useful to improve the quality of learning modules at junior high school/ mts level.
Co-Authors Asep Setiadi Dandan Luhur Saraswati Dita Safitrianaz Indica Yona Okyranida Pia Yuningsih Saragih