PPT-Lab 6: Rotational Motion I: The Inclined Plan

University of Michigan Physics Department Mechanics and Sound Intro Labs Inclined Plane Experiment Although it may seem daunting rotational motion is fairly straightforward In many ways it is analogous to the linear motion that you have studied previously Rotational motion can be examined using the same principles of energy and momentum conservation that you have used previously The equations that accompany these laws take a slightly different form but at their root they are based on the same physical principles So begins your three part study of rotational motion which includes this lab the rotating bar in . Terra Alta/East Preston School. Rotational Symmetry. If, when you rotate a shape, it looks exactly the same as it did in its original position, then we say that the shape has . rotational symmetry. .. University of Michigan. Physics Department. Mechanics and Sound . Intro . Labs. Gyroscopic Motion. Precession is a motion exhibited by rotating objects which change their angular momentum when subjected to torques, in accordance with Newton’s Second Law, and whether you realize it or not, torques and angular momentum have an impact on your everyday life. If you rode your bike today, the angular momentum of the wheels helped you maintain your balance.. We consider the rotation of . rigid bodies. . A rigid body is an extended object (as opposed to a point object) in which the mass is distributed spatially.. Where should a force be applied to make it . Inclined Planes. On an inclined plane the normal force is not . opposite the weight. Therefore it is necessary to break one of them into its x and y components so you can find the net force. mg. θ. N. We’ve seen that the translational motion of a complicated object can be accounted for by the motion of the center of mass. Now, we turn to all the other motions with respect to coordinate system moving with the center of mass. 10.1 – Angular Position (. θ. ). In linear (or translational) kinematics we looked at the position of an object (. Δx. , . Δy. , . Δd. …). We started at a reference point position (x. i. ) and our definition of position relied on how far away from that position we are.. Physics 1, NTC. Angular Motion, General Notes. When a rigid object rotates about a fixed axis in a given time interval, every portion on the object rotates through the same angle in a given time interval and has the same angular speed and the same angular acceleration.. Conservation of rotational momentum. 1. Why does a wheel keep spinning. ?. Why . is a bicycle stable when it is moving, but falls over when it . stops?. Why is it difficult to change the orientation of the axis of a spinning wheel?. Module 5. HigherEdServices.org. Session Topics. Orthographic projections of inclined and single-curved surfaces. Drawing isometric sketches from orthographic views of objects with inclined and single-curved surfaces. © 2015 Pearson Education, Inc.. This lecture will help you understand:. Circular Motion . Rotational Inertia. Torque. Center of Mass and Center of Gravity. Centripetal Force. Centrifugal Force. Rotating Reference Frames. We consider the rotation of . rigid bodies. . A rigid body is an extended object (as opposed to a point object) in which the mass is distributed spatially.. Where should a force be applied to make it rotate?. University of Michigan. Physics Department. Mechanics and Sound . Intro . Labs. Simple Harmonic Motion. This week you move away from rotational motion and begin to study simple harmonic motion. We say that you move away from rotational motion only in the sense that you will not be studying rotating objects as the main focus of the lab. However, it is worth noting that several concepts from rotational motion can be related to simple harmonic motion. You will study three simple harmonic oscillators today: the mass and spring system, the simple pendulum, and the ball and dish oscillator.. Infrared (Vibrational). Raman (Rotational & Vibrational) . Texts. “Physical Chemistry”, 6th edition, . Atkins. “Fundamentals of Molecular Spectroscopy”, 4th edition, . Banwell & McCash. Kinetic Energy. The kinetic energy of the center of mass of an object moving through a linear distance is called translational kinetic energy. . KE = ½ mv. 2. As an object rotates it experiences a type of kinetic energy known as rotational kinetic energy.