1. Chapter 9-Statics, Dynamics and Mechanical Engineering Objectives and what should you Know: What are statics and Dynamics? What are the Newtons’s three laws of motion? What is the difference between a scalar and a vector? How do you compute the components of a vector in three dimension? How do you calculate a unit vector given the orientation? How do you calculate the magnitude of a given vector? What are direction cosines of a vector? How do you add and subtract vectors? What are the basic equations used in solving equilibrium of body? What is and how do you draw free-body diagrams? What is Columbs frictional law? What is the difference between static and kinetic coefficient of friction?

2. Chapter 9-Statics, Dynamics and Mechanical Engineering—page 2 Objectives and what should you Know: Can you draw the free body diagram for problems similar to example 9.5? How does the equations of motions change (equation 9.18) when the bodies move? Homework problems: Problem 5, page 216, problem 6, page 217, problem 11, page 219.

3. Chapter 10-ME and solid mechanics Objectives and what should you Know: What is solid mechanics? What is the difference between tension, compression, shear and torsion? What is normal stress and normal strain? What is torsion? (equation 10.4) How do you calculate shear stress as in example 10.2? Define Poisson’s ratio. Define Hooke’s law. Calculate Poisson’s ratio for a simple loading condition. Homework problems: Problem 3, page 228; problem 6, page 229, problem 8, page 230

4. Chapter 11-Materials and Mechanical Engineering Objectives and what should you Know: What do you understand by engineering materials compared to general materials? Draw the stress-strain diagram as shown in Figure 11-2 and name all the regions and points? Should know the end of elastic limit, yield point, ultimate tensile stress and fracture? What is the difference between stiffness, strength, toughness? Given a table of data can you rank the material with increasing/decreasing properties? What is the effect of temperature on these properties? What is the difference between ductile and brittle materials? Can you classify a material based on % elongation or % reduction in area? What is true stress and true strain?

5. Chapter 11-Materials and Mechanical Engineering…contd Objectives and what should you Know: Name some examples of metals, polymers, ceramics, composites? What are the primary reasons for using each of these types of materials? What is creep, and why should we worry about it? Homework problems: Problem 1 and 2, page 238; In problem 2, add the following: Draw a plot of stress vs. % elongation. Calculate total % elongation to failure and the % reduction in area? Problem: Pick any latest model car. List at least three examples each of metals, polymers, ceramics and composites used in that. Also write for each case, why that material is chosen? Use internet for your answer? Draw diagram if you need to.