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Based on the curriculum of that era and Postnikov's methodology, the "knowledge checks" focus on these core areas:

Originally written for Grades 6-7, which in the modern curriculum corresponds to the foundational physics courses of Grades 7-8 .

Liquids, gases, and the Pascal/Archimedes principles.

It typically includes assignments in four variants for each topic.

Measuring instruments and basic physical phenomena. Movement and Forces: Speed, inertia, mass, and density.

Автор, Постников Андрей Вонифатьевич. Жанры/тематика, Педагогика; Учебная литература. Дисциплины, Физика. Учебный период, 6 класс; Wildberries Шпаргалка по физике 7 класс - KEDU.ru