This is the gold standard for Russian schools. The 2017 edition by Ekzamen contains over 1,800 problems ranging from basic conceptual questions to complex calculations.
Reviewers note that GDZ for Maron often provides detailed diagrams for pressure and force problems, which are often the hardest part of the 7th-grade curriculum. You can find this edition at Prosv.ru or Chitai-Gorod. This is the gold standard for Russian schools
Published by Drofa , this book is famous for its 659 targeted tasks that focus on "qualitative" physics—questions that ask why something happens, not just how much it weighs. решебник и ответы онлайн
ГДЗ по физике за 7 класс, решебник и ответы онлайн This is the gold standard for Russian schools