Online learning during the COVID-19 pandemic requires students to study from home, so it is necessary to present teaching materials in the form of interactive worksheets so that scientific activities continue to run well. Therefore, this study aims to develop an interactive e-LKPD on Newton's Law based on mobile learning using live worksheets in high school that are valid, practical, and has a potential impact on learning outcomes in the cognitive domain and learning motivation of students. The development research method uses the Rowntree research model. Rowntree's research model has three stages, namely: planning, development, and evaluation. The evaluation stage uses Tessmer's formative evaluation. The subjects of the study were students of class X at Bina Jaya High School. Based on the results of data analysis, it can be concluded that the interactive e-LKPD Newton's Law based on mobile learning using live worksheets in high school is declared valid, practical and has a potential impact on learning outcomes in the cognitive domain (n-gain of 0.58 in the medium category) and learning motivation (an average of 49.8 in the medium category), so it is suitable for use in the learning process