PPT-11-5 Damped Harmonic Motion

Typically harmonic motion decreases in amplitude with timethis realistic model describes damped harmonic motion The damping effect is a result of friction and internal resistance of the system to further motion. College Physics I. Fall 2012. S. A. Yost. Chapter 11 . Simple Harmonic Motion. Announcements. Problem set 10B is due Thursday. . Read . sections 1 – 4 and 7 – 9 . if you haven’t. Topics. : simple harmonic motion, intro to waves.. Chapter 4 A 0 A 0 x If the damping is sliding friction, constant, then the work done by the frictional is equal (4.2) Solving for 4_DampedHarmonicOscillator.nb (4.3) A0 2 F sfk dampingcoefficient 4 6 Prepared by;. Dr J P SINGH. Dept of Physics. P.G.G.C-11, Chandigarh. Email: drrajeshsharma@in.com. Periodic Motion. : any motion of system which repeats itself at regular, equal intervals of time.. Oscillatory or vibratory motion:. Typically, harmonic motion decreases in amplitude with time….this realistic model describes damped harmonic motion.. The damping effect is a result of friction and internal resistance of the system to further motion.. Simple Harmonic . Motion (SHM). periodic. motion about an . equilibrium point . where the restoring force is proportional to the distance from equilibrium. For oscillation to be . SHM, . the forces must always be directed to the . Chapter 15. Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.. 15-1. Simple Harmonic Motion. 15.01 . Distinguish simple harmonic motion from other types of periodic motion.. 15.02 . 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.. deal mainly with . simple harmonic. oscillations where the position of the object is specified by a . sinusoidal. function. . Mass on a spring. Energy. Pendulum. Chapter 15: Oscillatory motion. Reading assignment: Chapter 15.1 to 15.5; 15.6 & 15.7 cursory . Please pick the Learning Outcomes from the front of the room. Take a moment to review the Learning Outcomes. A Couple Things…. This is an EXTREMELY . quick. and somewhat . easy. unit (3 classes). Period of a Pendulum: . Period based on length (L) and value of gravity (g). Uses/Applications: . Use the . magnitude. of gravity (9.8 m/s. 2. ). Example . 8. A mass (m = 5.67 kg) is attached to a rope with a length of 0.950 m. . Examples:. Pendulum.. Oscillating spring (either horizontal or vertical) without friction.. Point on a wheel when viewed from above in plane of wheel.. Physics Classroom has a good lesson on simple harmonic motion under Waves, vibrations.. Explain how force, velocity, and acceleration change as an object vibrates with simple harmonic motion.. Calculate the spring force using Hooke’s law.. OBJECTIVES. What is periodic motion?. A repeated motion (e.g. pendulum swinging) that is back and forth over the same path.. Third exam will cover chapters 11-15.. Damped . simple harmonic oscillator (15-5). Forced oscillations and resonance . (. 15-6). When you start an oscillator in motion, it eventually stops because it dissipates energy.. Today, finishing Chapter 13:. Simple Pendulum. Circular motion and S.H.M.. Energy in S.H.M.. Damped Harmonic Motion. Driven Oscillations and Resonance.. From . http://www.cavatoyota.com/blog/what-are-shock-absorbers.