MECHANICS & FORCES: Newton's laws, force, motion, friction, work & energy reading comprehension passages. Why does a heavy crate refuse to budge, then slide all at once? Students use Newton’s laws, free-body diagrams, and friction to predict motion, then calculate work, energy, and power while testing real loads in tension, compression, shear, and bending. This digital resource features Read Aloud Audio, Self-Marking Multiple Choice Questions, Critical Thinking Challenges, Open-Ended Questions,