PPT-Vibrations and Waves Identify the conditions of simple harmonic motion.

Explain how force velocity and acceleration change as an object vibrates with simple harmonic motion Calculate the spring force using Hookes law OBJECTIVES What is periodic motion A repeated motion eg pendulum swinging that is back and forth over the same path. Chapter 1. . Physics Paper B. . BSc. . I. Motion of a body. PERIODIC MOTION- . The motion which repeats itself at a regular intervals of time is known as Periodic 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.. ©. The following pastels are visual representations of the initial . “. contact. ”. with extraterrestrials through energetic frequencies and signals.. Las . siguientes. . imagenes. son . representaciones. 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 . Prepared by;. Dr. Rajesh Sharma. Assistant Professor. 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.. 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.. . [3]. resonance . clocks – pendulum . springs . harmonic motion . mechanical waves . sound waves . The periodic wave relation. Wave interference. standing waves. beats. musical instruments. 1. Review. 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). 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.. Idiophones (xylophone, marimba, chimes, cymbals, gongs…). Membranophones (drams). Aerophones (whistles, sirens). Chordophones (piano, harpsichord). Some have definite pitch, other do not have definite pitch. 15-1. Simple Harmonic Motion. 15.01 . Distinguish simple harmonic motion from other types of periodic motion.. 15.02 . For a simple harmonic oscillator, apply the relationship between position . x . Oscillations. © 2014 Pearson Education, Inc.. If an object vibrates or oscillates back and forth over the same path, each cycle taking the same amount of time, the motion is called periodic. The mass and spring system is a useful model for a periodic system. Learning Objectives. Understand what are vibrations and the risks they cause. Recognize symptoms and effects . Hand arm and whole body vibrations. Preventing and reducing injury. What is Vibration? .