Exploring Rotational Motion: The Rotary Motion Sensor, Rotational Kinematics, Rotational Dynamics Purpose: Explore the parallels between angular motion and linear motion, both in terms of kinematics and dynamics. Specific Learning Outcomes: 1) Be able to describe and plot the relationships between angular position, angular velocity, and angular acceleration. 2) Determine a quantitative relationship between an object's rotational inertia and its resistance to change in angular velocity. 3) Compute the relationship between the applied force, torque, and rotational acceleration of an object. Equipment: Computer Data studio laboratory software Science workshop 750 interface Rotary Motion Sensor (RMS) Rotational motion accessories: three-step pulley, metal disk String with a very thin diameter about 1 m long. Scissors (to cut string) Ruler for measuring diameters of pulleys Masses: one 10 g, two 20g ( opt. clay ball) Logger Pro setup file RotationalMotion-Dynamics.mbl Introduction This section contains a brief introduction to rotational dynamics using analogies between motion in a straight line and rotation. In previous lab activities, you have been concerned with linear dynamics. Linear dynamics is when things move in straight lines, sometimes speeding up or slowing down. The activities in this lab are concerned with rotational dynamics, in which something spins, sometimes speeding up or slowing down. Angular displacement To do linear dynamics, one must be able to specify precise