Sound Waves Practice Problems PSI AP Physics 1 Name .

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Sound Waves Practice ProblemsPSI AP Physics 1NameMultiple Choice1. dofwave2theresultis:(A) Twiceasgreat(B)One- hthegiveninformation.2. (A) Vair Vwater Vsteel(B) Vair Vwater Vsteel(C) Vair Vwater Vsteel(D) Vair Vwater VsteelUsethefollowingpictureforquestions3and4.3. relationshipbetweenthedistancesisSA AB BC frequency?(A) quency4. relationshipbetweenthedistancesisSA AB BC estintensity?(A) ensity5. gth(D)Speedofsound

6. length(D)Speedofsound7. 3,L/5(D)4L,4L/3,4L/58. ,850Hz(D)50Hz,100Hz,150Hz9. quency?(Vsound 340m/s)(A)85Hz(B)170Hz(C)340Hz(D)510Hz

12. 6.0m13. hatistheresonatingfrequency?(Vsound 340m/s)(A)85Hz(B)170Hz(C)340Hz(D)510Hz14. ,L/5(D)4L,4L/3,4L/515. z,750Hz(D)900Hz,1500Hz,2100Hz16. B)800Hz(C)1200Hz(D)2500Hz17. isthebeatfrequency?(A)5Hz(B)10Hz(C)15Hz(D)20Hz

18. (D)3.0m19. (D)6.0m20. Whatistheresonatingfrequency?(Vsound 340m/s)(A)85Hz(B)170Hz(C)340Hz(D)680Hz21. . (D)Decreasesandthenincreases

23. z(B)100Hz(C)180Hz(D)270Hz24. heobserver?(Vsound 340m/s)(A)1560Hz(B)780Hz(C)390Hz(D)195Hz25. ndatpointP?(A)0.75m(B)1.50m(C)1.75m(D)2.25m

26. cevelocity?DirectionMagnitude(A)TotherightVobj Vsound(B)TotherightVobj Vsound(C)TotherightVobj Vsound(D)TotheleftVobj Vsound27. ndinthatroom?(A) Theperiodofthetuningfork.(B) ) Thetemperatureintheroom.(D) loffluidinthebottledecreases?(A) Thespeedofthewave(B) Thewavelengthofthewave(C) Thefrequencyofthewave(D) Nothingremainsthesame.

Multi- mustselectbothanswers.29. defromthedisplay?Selecttwoanswers.(A) Thesoundwavesaretravelinginthesamedirection.(B) Thesoundwaveshavedifferentfrequencies.(C) Thesoundwaveshavethesameamplitude.(D) Thesoundwavesaretravelingatdifferentspeeds.30. cieswillresonateinbothtubes?(A) 340Hz(B) 680Hz(C) 1020Hz(D) 1360Hz

Free Response1) Twoloudspeakersseparatedbyadistanced 0.5mareplacedatadistanceL 2mfromy- quencyf microphonemovesinparalleltoy- mamplitude.(Vsound 340m/s)a. Determinethewavelengthofthesoundwaves.b. ximumandfirst- ‐ordermaximum.c. Determinethedistancefromtheorigintothefirst- ‐ordermaximum.d. erethemicrophonedetectsnosound.e. Iftheloudspeakersoscillateinanti- pattern?

2) nd 340m/s)a) Determinethewavelengthofthesoundwave.b) taysthesameasitwasdetermineinthefirsttrial.c) hentheaircolumnresonatesforthefirsttime.d) forthesecondtime?thirdtime?

3.Twoloudspeakersseparatedbyadistanced 0.75mareplacedatadistanceL 4mfromthey- quencyf icrophonemovesinparalleltothey- umamplitude.(Vsound 340m/s)a. Determinethewavelengthofthesoundwaves.b. ximumandfirst- ‐ordermaximum.c. Determinethedistancefromtheorigintothefirst- ‐ordermaximum.d. erethemicrophonedetectsnosound.e. Iftheloudspeakersoscillateinanti- pattern?

vsound ime?Thirdtime?

5. ethetubetofindthespeedofsoundintheroom.a. includewhatmeasurementsyouwouldmake.b. thespeedofsound.c. s1.5m0.005s1.7m0.007s2.5m

6. stanceLfromthey- amicrophonemovesinparalleltothey- umamplitude.a. ionxalongthex- ntheaxesbelow.b. functionofpositionalongthey- ‐axis.c. Assumethatd longthelineHH.

7. le.Use340m/sforthespeedofsound.a) Calculatethewavelengthofthesesoundwaves.b) tancethestudentcouldhavemovedtohearthismaximum.c) youranswer. BB26. CC27.BD28. AB29. B,CC30. 0.25m30 ceversa.2m170Hz0.5m1.5m,2.5m5.a) tleast3morepairsofdata.b) !!!wheren 1.Thenuse𝑣 onesetofdata,theaveragecanbefound.c) Thespeedofsoundshouldbeapproximately340m/s.

5.a)b)c)113Hz6.a) 0.425mb) 2.4mc) 2.4montheoppositeoftheoriginoranymultipleof2.4md) tweenthespeakers.e) proportionaltofrequency.

PSI AP Physics 1 Name_ Multiple Choice 1. Two&sound&sources&S 1∧&S p;Hz&and250&Hz.&Whenwe& esult&is:& (A) great&&&&&(C)&The&same&&&&&

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