Reshebnik Dlia Tetrdadi Po Fiziki Bozhinova Bondarenko Evlakhova May 2026

Investigating sound vibrations and studying the law of conservation of mechanical energy.

Includes independent work and thematic control tests. Grade 9: Electromagnetism, Optics, and Advanced Mechanics

The 9th-grade workbook contains approximately 8 laboratory works:

Building and testing electromagnets and observing electromagnetic induction.

Investigating sound vibrations and studying the law of conservation of mechanical energy.

Includes independent work and thematic control tests. Grade 9: Electromagnetism, Optics, and Advanced Mechanics

The 9th-grade workbook contains approximately 8 laboratory works:

Building and testing electromagnets and observing electromagnetic induction.