General Physics PHY 007C
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This 9 page Class Notes was uploaded by Horace McClure on Tuesday September 8, 2015. The Class Notes belongs to PHY 007C at University of California - Davis taught by Staff in Fall. Since its upload, it has received 776 views. For similar materials see /class/191840/phy-007c-university-of-california-davis in Physics 2 at University of California - Davis.
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Date Created: 09/08/15
Physics 7C DLM 01 Overview DLM 01 Model Simple Harmonic Motion Act 811 A Review of Simple Harmonic Motion 90 min Learning Goals To interpret the mathematical expression yt A sin27tT To understand how this expression describes the motion of an oscillating object To understand the meaning and function of the fixed phase constant Model Plane Waves Act 812 What Exactly is a Wave 50 min Learning Goals Clearly establish how a wave differs from an oscillation Becoming familiar with the independent parameters of waves and what determines their values Understanding polarization of waves 1 139 For harmonic waves why 39 439 is a J J General Announcements Read the SHM Supplement and the first portion of the Course Notes on Waves both found on the course web page Download and print the Course Notes if you want a hard copy They will not be sold at Navin s or the Bookstore Be sure to regularly check the course web page for announcements regarding quizzes etc Physics 7C FNTS DLM 01 For scenarios 1 and 2 answer the following questions i Exactly what is oscillating in the medium ii Exactly what is moving that makes this a wave note this is distinct from i above iii Exactly what determines the wave speed The amplitude How could you change these 1 Application Answer i ii and iii to describe both a a 2D wave on the surface of water created N V L V VI by dropping in a stone and b a continuous harmonic wave caused by a swimmer bobbing up and down Application Answer i ii and iii for to describe a 3D sound wave created by a person playing a ute Application Explain the difference between the motion of air molecules caused by the wind at the beach to the motion of the air particles caused by sound waves created by the pounding surf in language that someone who has never taken physics could understand Solidification A machine tugs sideways on a horizontal elastic rope with a frequency of 5 Hz A graph of the transverse displacements of this rope wave at t 100 s as a function of position is shown below a Sketch a graph of displacement as a function of position for t102 s b What is the velocity of waves on this rope c If the frequency of the machine tugging on the rope is doubled to f 10 Hz i What is the new wavelength of waves on this rope ii What is the new velocity of waves on this rope iii How does the above graph change to re ect this new frequency d If the wave travels along the rope which is connected to a thinner rope which of the following changes as the wave moves onto the new rope i Period ii Wave speed iii Wavelength Introduction EXPLORATION Go to the Physics 7C course webpage and load the applet called SHM Wave Machine You should now be faced with the rather imposing equation 2n 0s 2m yx t 0s 25m s1n76s 160m Your goal is to enter DL 2 with a useful description in your own words of every part of the equation Make sure that your investigation includes the following 02n0m a Before starting the applet change each of the slider bars Note both how the equation changes and how the graph changes or does not change b Start the animation As it is running change each of the slider bars c Let the animation run for a few seconds then pause it With the animation paused at a time other than t0 change each of the slider bars Will39s Phy7C Final Review Notes Thursdavmm 05 2005 1015 PM W Simptxa Homovk Mohav Hawk131 dmggheu y 19 7o A 2 3 i 1 ye 48 Essa qua 39s143 x AlmaHow Period I NW9 1 T AL A z Lac in 1441 at Vel kx V x19 395 F 0 U 5 Wave foraxi a dimemw 9031ous Me 1 Tue JimQNW y x Sarah 2 ltgt 7 I S IVMPIKI WSUI C gt Fak Peak or4m 7lfuquotn 3x 2 Hake ago4 0 abcwv ruu ltc vu 0 fan a oosma ow Jim wow r A 395 Cofculcd39e Mlozty a l 2 41 Axum FEZICCI H TMSIDMS At 1 0 y39vw SimA 331 4 be rm 395 9 UL Noetoo posiJMJokol 49m 6 WE NierMo o epe wave T V y X our 7 t 31 th gt4 H AA D STMP Y Nowquot x wok V gt X 2 ve a away m dlneg onr oQ qul 0 1 TNT Lhasa a k 0394 t 7 9 quotT gt graph fa lLerMiWF 7 3 t t O i am 12quot k 11gt gtlto Z PLL a feuk or qLrouclk and Jr 772 of Y 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