University:
University of Colorado Boulder
Course:
PHYS 2020 | General Physics 2
Academic year:

2019
Views:

167

Pages:

2
Author:

bujnijihzk5

Name Period D 50fl < rp| I . The illustration below shows a series of transverse waves. Label each part in the space provided. a. S4 b. n Kvn c. k d. f 7 . ,. . e. A frVv O f. Os fhtt H p\ g. K-fs-ri ( c rv —2^ ~ ' - Fill in the blanks: 2. Waves carry from one place to another. 3. The highest point on a transverse wave is the C IT - f S 4~ KV\ Ip ( TU while the lowest part is the <^veS Lhl ' ^ ocv*. ( foY ^ Hs ' 8 . Consider a wave generator that produces 10 pulses per second. The speed of the waves is 300. cm /s. - iote what is ID , w< c - " vr - 1 ^ * \0 Vit the wavelength of the waves : 300. c tv $ b. What happens to the wavelength if the frequency of pulses is increased? a. . 0 M/ W ' r ' © Instruction I \ - O q vTj ^ ' ' W 2 , Mechanical Waves in ID , i v?. 2 a - 40.0 w \ 9. A wave on Beaver Dam Lake passes by two docks that are 40 X) m apart. a. If there is a crest at each dock and another three crests between the two docks, determine the wavelength. ID • 0 rv\ pass . b If 10 waves one dock every 16.0 seconds, determine the period and frequency of the wave. c. What is the speed of the wave? loavtfc V ' - 10. -h.loOs ( _ 10 c\ 10. Sally Sue, an enthusiastic physics student enjoyed the opportunity to collect data from standing waves in a spring. She and her partner held the ends of their spring 4.00 meters apart. There were 5 nodes in the standing wave produced. Sally moved her hand fVom the rest position back and forth along the floor 20 times in 4.00 s. Sketch the situation and determine the following: * ~iJot ,0Qfr 4M M \ - , ivy a. the wavelength of the wave Sally Sue senj (X b. the frequency of the wave produced ~ l 5 > DD rn ( c. the speed of the wave ^ V -a w -l »>- 0 ^ r^ / s ] 11. What frequency and period woul be required for Sally and her cheerful, pleasant, hard- working partner to produce a standing wave with three nodes? Explain your reasoning by identifying your steps. f _ ; T« < 4 , 0 0 rv^ t <2 * =T. * " T OD or\ ! \ X ) & 12. The wavelength of a sound wave in this roomiTl .TT m and*the frequency is 301 Hz. - irn rt T a. What is the speed of the wave in the room? IT J 3 m x ! 2,0 ) M/ ) you double the frequency of the sound wave, determine its speed. S b. If c. What happens to the wavelength if you cut the frequency ip half ? How do you know? = -fh-e is do\A& e4 - i$ J 13. The crest of Wave A (amplitude 1.5 meters) meets up with the crest of Wave meters) and produces Wave C' 1 , A C ^ (amplitude 1.5 3.0 rri a. Draw Wave A, draw Wave B, and draw the resulting Wave C. b. What is this phenomenon called? c. What would happen if the crest of Wave A met the trough of Wave B? Draw the three waves to illustrate -t 5 - hejt c r Ih-ter ’K’ te 14. Explain why owl hoots are able to diffract more in the forest than a songbird’s tweets? Draw a picture to illustrate diffraction. The longer W\e. \vyxe. +he vJAve l^ iil drC^U-f . Th^ OLO[ Roof S w i l l be. aV\e +© b « s(er. * ' © Instruction Program 2004 2 2, Mechanical Waves in ID, WS 5 v3.2 .