PPT-Torque and Rotational Motion

HTHS AP Physics 1 M Dimler Torque Torque is a force that causes an object to turn Torque Force directed perpendicular to the lever arm of an object that has the ability to rotate the object around a fulcrum or axis . 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 . 11.1 - Torque. Increased Force = Increased Torque. Increased Radius = Increased Torque. 11.1 - . Torque. Only the tangential component of force causes a torque:. 11-1 Torque. This leads to a more general definition of torque:. A . torque. is an action that causes objects to rotate.. Torque is . not. . the same thing as force.. For rotational motion, the torque. . is what is most directly related to the motion, not the force.. 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.. Torque. Center of Mass. When analyzing the motion of an extended object, we treat the entire object as if its mass were contained in a single point, known as the object’s . center of mass (CM).. Mathematically, the CM of an object is the weighted average of the location of the mass in an object.. and rotational inertia. We consider the rotation of . rigid bodies. . A rigid body is an extended object in which the mass is distributed spatially.. Where should a force be applied to make it rotate (spin)? The same force applied at . Conservation of rotational momentum. 1. Why does a wheel keep spinning. ?. Spinning ice skater . Video. . 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?. Chapter 11. Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.. 11-1. Rolling as Translation and Rotation Combined. 11.01. Identify that smooth rolling can be considered as a combination of pure translation and pure rotation.. We consider the rotation of . rigid bodies. . A rigid body is an extended object in which the mass is distributed spatially.. Where should a force be applied to make it rotate (spin)? The same force applied at . © 2016 Pearson Education, Inc.. Goals for Chapter 9 . To study angular velocity and angular acceleration.. To examine rotation with constant angular acceleration.. To understand the relationship between linear and angular quantities.. Rotational Motion – Torque and Angular Momentum AP Physics 1 Torque Forces with equal strength will have different effects on a swinging door. The ability of a force to cause rotation depends ics. Ch 8 – Kinematics + . Ch 9 – Dynamics . Part 1 - Torque. Book Sections 9.1-9.3. Rotation. Rotation. is “spinning”. . around an axis. Rotation is different than revolution. Rotation: turning around an . 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. Chapter 8. Magnitude of a Torque. What is a torque?. A quantity that measures the ability of a force to rotate an object around some axis.. r. . Example… . Imagine opening a door around a hinge..