Download Anatomy of Waves: Types, Particles Displacement, and Wavelength and more Exams Anatomy in PDF only on Docsity! 2a Anatomy of the Wave Notes.notebook 1 May 09, 2014 May 59:07 AM Anatomy of a Wave: The Basic Wave Structure What is a Pulse? A pulse is a single disturbance that moves through a medium from one point to the next point. How do you create a Pulse? By sending a single disturbance down a medium (or substance). What is a Wave? Waves are an oscillating, traveling form of ENERGY that travels from one place to another through some substance. How do you create a Wave? By sending multiple disturbances down a medium (or substance). May 59:07 AM Anatomy of a Wave: The Basic Wave Structure There are two types of waves: Transverse or Longitudinal (compression) 2a Anatomy of the Wave Notes.notebook 2 May 09, 2014 May 59:11 AM Transverse Waves displace the particles of a substance perpendicular to the direction of the wave, producing an up and down motion. At any time, a particle in the substance the wave is going through can be above or below the “rest” position or equilibrium, which is represented by the dashed horizontal line. Transverse Waves May 510:35 AM 1) Crests are when the wave is furthest up from the rest position. It is the maximum positive displacement. In the diagram above, which pair of letters represent the crest? ____________________________ 2) Troughs are when the wave is furthest down from the rest position. It is the maximum negative displacement. In the diagram above, which pair of letters represent the trough? ___________________________ 3) Amplitude is from “crest to rest” or “rest to trough”, or the maximum displacement in either direction from the rest position. In the diagram above, which pair of letters represents the amplitude? _________________________ 4) Wavelength is the length of one complete wave cycle, meaning the wave has gone the distance of “crest to crest” or “trough to trough”. In the diagram above, which pair of letters represents the wavelength? ___________________ Transverse Waves 2a Anatomy of the Wave Notes.notebook 5 May 09, 2014 May 810:14 AM Period (T) and frequency (f) are the reciprocal of each other. This means that they relate to each other in an indirect way. For example, if the frequency increases, then the period has to decrease. Example: A drummer hits a drum 2 times in a second (frequency). The length of time between each hit is .5 second (period). 2 hits = Each hit is .5 seconds long (adds up to 1 second). The same drummer hits a drum 4 times in a second (frequency). The length of time between each hit is .25 seconds (period). 4 hits = .25 seconds + .25 seconds + .25 seconds + .25 seconds (adds up to 1 second). May 810:15 AM So the following equations can be used: Period = 1_____ OR T = ___1___ frequency =___1_____ OR f = ____1___ frequency f period T Frequency of a wave is how many cycles (vibrations or oscillations) a particle goes through in one second. Measured in Hertz (Hz). Period of a wave is how much time it takes a particle in a substance to make one complete oscillation(vibration) or cycle. Measured in seconds (sec). 2a Anatomy of the Wave Notes.notebook May 09, 2014
1)A drummer hits a drum 4 times in one
second. What is the period of each drum beat?
1 Ghsed | 0 aS
7 O.
| = “LR Cycle ”
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