PDF-VIBRATIONS AND WAVES

13 Key words Vibrations Waves Vibrational Motion Periodic Motion Simple Harmonic Motion Restoring Force Hookx2019s Law Amplitude Period Frequency Phase Angle A ngular Frequency. in electronic structure. Electronic . structure. . for. T=0. Sometimes. . considered. Effect. . of. zero-point . vibrations. . on . lattice. . parameters. I. ndirect. . impact. Zero-point . motion. WAves. A wiggle in time is a vibration. .. A wiggle in space and time is a wave.. A vibration can exist in one location, a wave cannot. A wave must travel from one place to another.. Vibration of a Pendulum. Doppler Effect. ~apparent change in frequency of a wave due to the motion of the source of the wave.. If the object is moving towards the observer the frequency will appear to increase. If the object is moving away from the observer the frequency will appear to decrease. Periodic Motion – any repeated motion with regular time intervals. Simple Harmonic Motion – vibration about an equilibrium position in which a restoring force is proportional to the displacement from equilibrium . 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.. Physical Science . FORMS OF ENERGY. TOPIC VII. SC.K.P.10.1. SOUND. Grade K Pacing Guide: Forms of Energy . Sound/Practice of Science Benchmarks. SC.K.P.10.1: Observe that things that make sound vibrate.. Benjamin Agyare, Stockton University & . Peter . Riseborough. (PhD), Temple University . ILMs are persistent vibrations of atoms in a homogeneous lattice which extend only over a finite region of space.. Before the waves are made the particles are same distance apart. While waves moves through the medium the particles . compress. together, then they spread further apart (stretched areas)- . rarefaction.. Warm-Up: February 17/18, 2016. Vibrations and Waves. Chapter 14. A . periodic motion . repeats in a regular cycle.. Examples include:. Pendulums (such as on a grandfather clock). A mass at the end of a spring. Wave. Repeating disturbance or movement. Carries energy through matter and space. Vibrations. Anything that moves in a rhythmic patter. Up and down. Back and forth. What is a Wave. All waves are produced when something vibrates. 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? . 2022-2023 Season. Russ Burleson. geaux15@hotmail.com. . 1. Agenda. Binder Check/Homework review. Mechanical Wave overview. Transverse Waves. Surface Waves. Longitudinal Waves (general). Sound Waves (Longitudinal). Periodic Motion. Motion that repeats in a regular cycle is called . periodic motion. . . The revolution of a planet about its sun is an example of periodic motion. The highly reproducible period (T) of a planet is also called its year.. - Jon . Kabat. -Zinn. Waves are moving . energy. !. Most waves wind-driven. Moving energy along ocean/air interface:. Wind main disturbing force. Boundary between and within fluids with different densities.