Physics I [Phys 161]                                    Spring 2005 Assignment #4 Reading, Vocabulary & Objectives A. Availability and Due Dates Assignment #4 is available Friday, February 18, 2005.  The target date for its successful completion is Monday, February 28, 2005.  In any event, all Mandatory Homework problems from Assignment #4 must be successfully completed and turned in by 5:00 pm on Wednesday, March 2, 2005.  If this requirement is not met, the student will not be allowed to take Exam 2, to be given in class on Friday, March 4, 2005.   B. Reading As preparation for completing the problems in Assignment #4, read Chapters 6 and 7 in Knight. C. Vocabulary As part of Assignment #4, the following vocabulary words must be understood and memorized: Projectile Motion, Relative Velocity, Galilean Transformation, Angular Position, Angular Displacement, Average Angular Acceleration, Average Angular Speed, Average Angular Velocity, Centrifugal, Centripetal, Classical Relativity, Period, Gravitational Mass, Instantaneous Angular Acceleration, Instantaneous Angular Speed, Instantaneous Angular Velocity, Uniform Circular Motion, Non-Uniform Circular Motion, Radial, Tangential. D. Objectives In addition to the Objectives listed on Assignments #1- #3, after completing Assignment #4, the student should Know the definitions of those quantities listed in the vocabulary section above. Know the SI units in which any of the “dimensionful” quantities in the vocabulary section above are measured. The student should be able to identify Non-Inertial Reference Frames (NIRFs), and should be able to determine the fictitious forces that act in them. Be comfortable with linear kinematics in an arbitrary number of dimensions.  It should be possible for the student to communicate this comfort both algebraically and graphically. Understand that velocities make sense only as relative quantities, and understand why. Understand the ideas behind classical relativity (also known as Galilean Relativity). Have memorized the value of the speed of light in vacuum (c). Know that the speed of light is the same in all IRFs.  The student should realize the implications that this has for the nature of space and time. Be able to use chain rules as appropriate to take derivatives of nested expressions. Understand the details of Uniform Circular Motion.  Specifically, the student should be able to explain the relationship between the velocity and acceleration vectors for an object undergoing uniform circular motion (qualitatively and quantitatively, magnitude and direction). Be comfortable with rotational kinematics in two dimensions.  It should be possible for the student to communicate this comfort both algebraically and graphically.