Physics Grade 12 

17.1 Classification of Solids Crystalline Solids Amorphous or Glassy Solids Polymeric Solids and Crystal Lattice

17.2 Mechanical Properties of Solids Deformation in Solids Stress and Strain Elastic Constants Elastic Limit and Yield Strength Strain Energy in Deformed Materials

17.3 Electrical Properties of Solids Energy Band Theory Insulators and Conductors Semiconductors Intrinsic and Extrinsic Semiconductors Conduction by Electrons and Holes in Semiconductors

17.5 Magnetic Properties of Solids Hysterises Loop