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Reading Guide (RG) 1 Ch. 6.1 Define and give equation for period and frequency (see Ch. 3.8). What is angular position? (Definition and symbol) When looking at circular motion, which direction is positive (+) and which direction is negative (-)? Include a picture and the specific term. What is the unit of angular position? How many radians are in a full circle? How many degrees are in 1 radian? What is angular velocity? (def, symbol, and unit) What are the three commonly used equations for angular velocity? What is the significance of the slope of a θ vs. t graph? What is the significance of the slope of a ω vs. t graph? Answer Stop to Think (STT) 6.1. Ch. 6.2 What is the relationship between linear and angular speed? What is angular acceleration? (Symbol, definition, equation, unit) Answer STT 6.2 Ch. 7.1 What is the rigid-body model and why are we now going to use it? What are the three types of motion? Explain and give an example of each type. Why does every point on a rotating rigid body have the same angular velocity? Why is angular acceleration considered to be nonuniform circular motion? What is the difference between angular and centripetal acceleration? Sketch θ vs t and ω vs t graphs for the following situations: Constant ω Constant α What is tangential acceleration? How are tangential, centripetal, and angular acceleration different? Draw a picture and explain. STT 7.1