Materi usaha dan energi dianggap mudah bagi siswa, tetapi dalam beberapa penelitian menunjukkan bahwa masih banyak siswa yang mengalami kesulitan. Untuk membantu siswa, diperlukan media pembelajaran yang menarik untuk mempelajari materi tersebut yaitu mobile learning berbasis android. Mobile learning ini berisi kompetensi, materi, soal dan pembahasan, video dan latihan interaktif. Metode penelitian yang digunakan adalah metode Research and Development dengan proses pengembanganya menggunakan model ADDIE (Analysis, Design, Development, Implementation dan Evaluation). Penelitian pengembangan model ADDIE yang dilakukan hanya sampai tahap Development karena tujuan penelitian ini hanya sebatas mengembangkan aplikasi yang valid berdasarkan penilaian validator. Instrumen pengumpulan data terdiri dari lembar validasi ahli media dan lembar validasi ahli materi yang diberikan kepada 2 ahli media dan 2 ahli materi. Hasil validasi ahli media sebesar 90 % dan ahli materi sebesar 84%. Kesimpulan penelitian pengemembangan ini adalah mobile learning berbasis android pada materi usaha dan energi sangat layak digunakan dalam pembelajaran fisika

In the current condition, the Covid-19 pandemic has an impact that is enough to make everyone feel distress until the government really carries out regional autonomy appropriately. The Covid-19 pandemic is not over and causes a lot of adversity, especially for the community both in terms of income and social aspects. This study aims to 1) analyze the regional policies that have been applied in dealing with a pandemic 2) Look at the influence of local policies on the socio-economic conditions of the community. The method used in this study is the analytical descriptive method approach. The data used are analytic qualitative data and literature literature study. Based on the results and discussion in this study, regional autonomy policy allows regional governments to freely apply large-scale social restrictions with quarantine or temporary lockdown in order to stop covid-19 transmission. Local government policy has a significant influence on the handling of Covid-19 due to the potential potential of workers who stop working as much as 16% so that the government reopens economic places such as the market as an effort to improve the economy and the welfare of the community who are sinking while continuing to implement health protocols.

The Circular motion is one of physics learning topic that has number of physics parameter. There are angular velocity and angular acceleration. They are can be calculated and measured. The aim of this research is to measure angular velocity and angular acceleration using logger pro magnetic sensor on the top of the propeller by varying the speed fan. There is a magnet bar that is attached on propeller top surface. The magnetic sensor is placed on the top of it. The distance is 0.01 meter. The motion of the magnet bar follow the circular motion of the propeller. Hence, circular motion can be tracked by plotting the magnetic field intensity over time. The maximum angular velocity of speed 1, speed 2, speed 3 were 5.709 rad/s, 10.467 rad/s, and 10.467 rad/s, respectively. The maximum angular acceleration of speed 1, speed 2, speed 3 were 0.594 rad/s2, 2.492 rad/s2, and 2.492 rad/s2, respectively. The measuring of angular acceleration for each speed are obtained by value that are different. This is due to wind speed and the changed rotation that are different.

This study proposed to determine the effectiveness of the Learning Management System (LMS) assisted Schoology on parabolic material in student learning outcomes at the SMK Bhakti Indonesia Medika Pacitan. The study was a pre-experimental design with one group pre-test post-test design. The sample of this research was students of X SMK Kesehatan Bhakti Indonesia Medika Pacitan. The data analysis in this study used the One-Sample T-Test with SPSS 23. Based on the result, the average percentage of increase in student learning outcomes using LMS assisted schoology on parabolic material was 25%. By using the One Sample T-Test the sig. (2-tailed) Value of 0,000 < 0,05, statistically, there was a difference between before and after using the LMS-assisted Schoology. The usability questionnaire showed that the average for each aspect is 79% (usefulness), 67.2% (ease of use), 67.50% (ease of learning), and 64% of students are satisfied (satisfaction).