PPT-Rotational Dynamics

Torque Read pp 552 top of 554 You are using a wrench to loosen a rusty nut Which arrangement will be the most effective in loosening the nut Question 84 Using a Wrench a c d b e. CHE 6416. Michael Evans. 1. How does Microwave relate to other spectroscopies. Different types of motion. Translational. Vibrational. Rotational.. 2. What is Microwave Spectroscopy?. Microwave stimulates Rotational translations. Angular displacement, angular velocity, angular acceleration. Rotational energy. Moment of Inertia. Torque. Chapter 10:Rotation of a rigid object about a fixed axis. Reading assignment:. Chapter 10.1 to10.4, 10.5 (know concept of moment of inertia, don’t worry about integral calculation), 10.6 to . 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:. 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?. Ellen Akers. Radians and Degrees. In degrees, once around a circle is 360˚. In radians, once around a circle is 2. π. A radian measures a distance around an arc equal to the length of the arc’s radius. 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?. © 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. Motion. © 2016 Pearson Education, Inc.. Dynamics of Rotational Motion. (Conservation of angular momentum). Goals for Chapter 10. Torque: “angular force”. To see how torques cause rotational dynamics (just as linear forces cause linear accelerations). alignment . Rotational states. Molecular . alignment is suitable tool to exert strong-field control over molecular properties.. Some of research fields in which molecular alignment plays a key role. High harmonics generation. 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. . Practice Problems. Newton’s 2. nd. law involving rotations. Practice Problem #2. A person exerts a force of 45.0 N on the end of a door 84.0 cm wide. What is the magnitude of the torque if the force is exerted:. 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..