Collection of Questions and Problems in Physics for Grades 6-7

The study of physics in secondary school begins when students have already acquired certain knowledge in mathematics and are able to perform calculations of physical quantities. By this time, students also have an understanding of the phenomena of the surrounding... world. The guide contains a number of original questions, problems, and experiments on mechanics, heat, and electricity.
Why is it easy to slip on a watermelon rind that has fallen underfoot? When does bread become stale faster — in a closed cupboard or on the table? Why does water extinguish fire? What makes lightning capable of igniting wood?
Questions based on specific practical examples will help students better understand or expand their knowledge of the subject being studied. The edition also contains tables of physical quantities and answers and guidelines for solving problems.