Physics 212 Lecture: "Elastic Deformations".  
Dec 1, 1997
-  What are elastic deformations?
 -  Hooke's Law: stress is proportional to strain
 -  Young's modulus: compression/tension
 -  Shear modulus: shear
 -  Bulk modulus: overall compression/expansion
 
This lecture discusses material in Chapter 10 of Cutnell and Johnson.