To improve physics in English at the junior high school level, focus on mastering key concepts and vocabulary. Start by reviewing fundamental terms like force, energy, and motion. Use flashcards or study apps to practice these words regularly.

Engage with English-language physics resources, such as online videos, articles, and textbooks. This will help you familiarize yourself with scientific terminology and concepts in an English context.

Don't forget to solve problems and work through examples in English. This will not only reinforce your knowledge but also improve your ability to understand and use scientific language.

Lastly, remember that practice makes perfect. Consistent effort in studying physics concepts in English will lead to gradual improvement over time.