This document outlines key mechanical properties of matter discussed in a Physics 2 course, including: 1. Density, specific gravity, elasticity, Hooke's law, elastic limit, ultimate strength, ductility, malleability 2. Structures of solids, stress, strain, modulus of elasticity (Young's modulus), shear, shear modulus, bulk modulus 3. Examples of densities, elastic moduli, elastic limits, ultimate strengths, and bulk moduli of common substances.