PPT-L 20 – Vibration, Waves and Sound -1

Resonance The pendulum Springs Harmonic motion Mechanical waves Sound waves Musical instruments Tacoma Narrows Bridge November 7 1940 httpwwwyoutubecomwatchvxox9BVSu7Ok 1 Flow past an object. Chapter 16. 16.1 The Nature of Waves. A Wave:. Traveling disturbance. Carries energy from place to place. Two Different Types:. Transverse. Longitudinal . Slinky. If the end is jerked up and down, an upward pulse is sent traveling toward the right.. By Rhett Price. Speed of Sound . Speed of sound depends on density. Correlation between speed and density. Not as fast as light speed. Also affected by pressure and temperature. Positive correlation between them. Section 8.1. Question 1. Sample . answer:. A . vibration is the cyclical motion of an . object about . an equilibrium point. A wave is the . transfer of . energy through a material due to . vibration. Vibration . Now hear this!. Sound is a form of energy.. Other types of energy we will learn about are heat and light.. What is sound?. Science Benchmark. Heat, light, and sound are all forms of energy... Sound is created by vibration and cannot travel through a vacuum. Pitch is determined by the vibration rate of the sound source. S8P4. . Students will explore the wave nature of sound and electromagnetic radiation. . Identify . the characteristics of electromagnetic and . mechanical waves. . . b. Describe how the behavior of light waves . Which of the following waves . requires a material medium through which to travel? . (a) Sound . (b) Television . (c) Radio. (d) X ray. Q1. (a) Sound . Sound is a mechanical wave, transferred through air, or other media, by vibrations passed along through the media. by meaning that it requires a medium through which to travel. . . [3]. resonance . clocks – pendulum . springs . harmonic motion . mechanical waves . sound waves . The periodic wave relation. Wave interference. standing waves. beats. musical instruments. 1. Review. Students will explore the wave nature of sound and electromagnetic radiation. . Identify . the characteristics of electromagnetic and . mechanical waves. . . b. Describe how the behavior of light waves . An old riddle ….. If a tree falls in a forest, and no one hears it, does the tree make a sound?. What is “sound”?. Sound Waves. To a scientist, a tree makes a sound whether someone hears it or not.. Introduction. Most mechanical devices such as fans, pumps, etc. produce vibration.. Vibration is easily transmitted through solid materials and may ‘appear’ elsewhere producing troublesome vibration and/or noise.. Use your knowledge of waves & physics to answer the question.. Sound. Longitudinal wave phenomenon that consists of successive compressions and rarefactions of the medium through which the wave travels. . This Slideshow was developed to accompany the textbook. OpenStax. Physics. Available . for free at . https://. openstaxcollege.org/textbooks/college-physics. . By . OpenStax. College and Rice University. A wave is a vibration. That travels from place to place. Thus it is two motions each with its own direction. The . Vibration. : a SHM. The . Propagation. ; its motion from place to place. Together they from a wave. 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..