The Geosphere (Solid Earth). Longitudinal waves P-waves. Like sound waves or acoustic wave.
MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”
-
Upload
neil-black -
Category
Documents
-
view
236 -
download
3
Transcript of MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”
![Page 1: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/1.jpg)
![Page 2: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/2.jpg)
![Page 3: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/3.jpg)
MECHANICAL MECHANICAL WAVESWAVES
![Page 4: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/4.jpg)
WAVE WAVE PROPERTIESPROPERTIES
![Page 5: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/5.jpg)
SOUND…“WHAT?”SOUND…“WHAT?”
![Page 6: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/6.jpg)
SOUNDS OF MUSICSOUNDS OF MUSIC
![Page 7: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/7.jpg)
MIXED BAGMIXED BAG
![Page 8: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/8.jpg)
COOL VIBRATIONSCOOL VIBRATIONS
![Page 9: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/9.jpg)
MECHANICAL WAVES
WAVE PROPERTIES
SOUND…
”WHAT?”
SOUNDS OF MUSIC
MIXED BAG COOL VIBRATIONS
![Page 10: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/10.jpg)
MECHANICAL WAVESMECHANICAL WAVESREQUIRE THIS IN ORDERREQUIRE THIS IN ORDER
TO PROPOGATE TO PROPOGATE
![Page 11: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/11.jpg)
THE TYPE OF WAVE THE TYPE OF WAVE THAT STARTS WITH A THAT STARTS WITH A
SINGLE DISTURBANCE.SINGLE DISTURBANCE.
![Page 12: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/12.jpg)
A WAVE IN WHICH THE A WAVE IN WHICH THE PARTICLES OCILLATE PARTICLES OCILLATE
PARALLEL TO THE PARALLEL TO THE DIRECTION OF DIRECTION OF PROPOGATION.PROPOGATION.
![Page 13: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/13.jpg)
THE DIRECTION THE THE DIRECTION THE RED DOT ON THE WAVE RED DOT ON THE WAVE
IS MOVINGIS MOVING
![Page 14: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/14.jpg)
DOUBLING THE DOUBLING THE AMPLITUDE OF A WAVE AMPLITUDE OF A WAVE WILL HAVE THIS EFFECT WILL HAVE THIS EFFECT
ON ITS ENERGY ON ITS ENERGY
![Page 15: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/15.jpg)
THE TIME IT TAKES FOR THE TIME IT TAKES FOR A WAVE TO COMPLETE A WAVE TO COMPLETE
ONE CYCLEONE CYCLE
![Page 16: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/16.jpg)
THE FREQUENCY OF A THE FREQUENCY OF A WAVE WHOSE PERIOD WAVE WHOSE PERIOD
IS 2 s.IS 2 s.
![Page 17: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/17.jpg)
A COLLISION BETWEEN A COLLISION BETWEEN TWO WAVES THAT TWO WAVES THAT
RESULTS IN A WAVE RESULTS IN A WAVE GREATER THAN ITS GREATER THAN ITS
COMPONENTSCOMPONENTS
![Page 18: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/18.jpg)
THE EFFECT THAT THE EFFECT THAT DOUBLING THE DOUBLING THE
WAVELENGTH HAS ON WAVELENGTH HAS ON THE WAVE SPEEDTHE WAVE SPEED
![Page 19: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/19.jpg)
THE FREQUENCY OF THE FREQUENCY OF THE WATER WAVE THE WATER WAVE
![Page 20: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/20.jpg)
THE PERCEPTION OF THE PERCEPTION OF HOW HIGH OR LOW A HOW HIGH OR LOW A
SOUND APPEARS TO BESOUND APPEARS TO BE
![Page 21: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/21.jpg)
A REFLECTED SOUND WAVEA REFLECTED SOUND WAVE
![Page 22: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/22.jpg)
SOUNDS BELOW 20 HZ SOUNDS BELOW 20 HZ
![Page 23: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/23.jpg)
THE SPEED OF SOUND THE SPEED OF SOUND IN AIR AT 25IN AIR AT 25ooCC
![Page 24: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/24.jpg)
THE MINIMUM DISTANCE A THE MINIMUM DISTANCE A REFLECTIVE SURFACE REFLECTIVE SURFACE
MUST BE IN ORDER FOR MUST BE IN ORDER FOR YOU TO HEAR AN ECHO YOU TO HEAR AN ECHO ON A DAY WHEN IT IS ON A DAY WHEN IT IS
2020ooC.C.
![Page 25: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/25.jpg)
THE TERM THAT THE TERM THAT DESCRIBES THE DESCRIBES THE QUALITY OF THE QUALITY OF THE
SOUND PRODUCED BY SOUND PRODUCED BY AN INSTRUMENTAN INSTRUMENT
![Page 26: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/26.jpg)
THE TYPE OF WAVES THE TYPE OF WAVES PRODUCED IN WIND PRODUCED IN WIND
INSTRUMENTSINSTRUMENTS
![Page 27: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/27.jpg)
THE WAVELENGTH OF THE WAVELENGTH OF THE FIRST HARMONIC THE FIRST HARMONIC
ON A 30 cm VIOLIN ON A 30 cm VIOLIN STRING STRING
![Page 28: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/28.jpg)
THE FREQUENCY THE FREQUENCY EMITTED BY A PIANO EMITTED BY A PIANO
WHEN A TUNER USES A WHEN A TUNER USES A 440 Hz TUNING FORK 440 Hz TUNING FORK AND HEARS 2 BEATS AND HEARS 2 BEATS
PER SECONDPER SECOND
![Page 29: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/29.jpg)
THE FREQUENCY OF THE 5THE FREQUENCY OF THE 5THTH HARMONIC IN A 1 m ORGAN PIPE HARMONIC IN A 1 m ORGAN PIPE
THAT IS OPEN AT BOTH ENDS THAT IS OPEN AT BOTH ENDS WHEN THE AIR WITHIN THE PIPE WHEN THE AIR WITHIN THE PIPE
IS 20IS 20ooCC
![Page 30: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/30.jpg)
THE OBSERVED THE OBSERVED CHANGE IN CHANGE IN
FREQIUENCY DUE TO FREQIUENCY DUE TO THE MOTION OF A THE MOTION OF A
SOUND SOURCE OR SOUND SOURCE OR OBSERVEROBSERVER
![Page 31: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/31.jpg)
WHEN THE FREQUENCY WHEN THE FREQUENCY OF A FORCE APPLIED TO OF A FORCE APPLIED TO
A SYSTEM MATCHES A SYSTEM MATCHES THE NATURAL THE NATURAL
FREQUENCY OF FREQUENCY OF VIBRATION OF A VIBRATION OF A
SYSTEMSYSTEM
![Page 32: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/32.jpg)
THE WAVELENGTH OF THE WAVELENGTH OF THE SECOND THE SECOND
HARMONIC ON A HARMONIC ON A GUITAR STRING OF GUITAR STRING OF
LENGTH L.LENGTH L.
![Page 33: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/33.jpg)
THE MAXIMUM THE MAXIMUM POSSIBLE AMPLITUDE POSSIBLE AMPLITUDE
OF A RESULTANT WAVE OF A RESULTANT WAVE IF WAVES OF 1.0m AND IF WAVES OF 1.0m AND
0.5m AMPLITUDES 0.5m AMPLITUDES INTERACTINTERACT
![Page 34: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/34.jpg)
THE FREQUENCY BEING THE FREQUENCY BEING EMITTED BY THE CAR EMITTED BY THE CAR TRAVELING AT 32 m/s TRAVELING AT 32 m/s WHEN OBSERVER ‘A’ WHEN OBSERVER ‘A’
HEARS A 450 Hz PITCHHEARS A 450 Hz PITCH
BBAA
![Page 35: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/35.jpg)
THE FREQUENCY AT THE FREQUENCY AT WHICH ALL OBJECTS WHICH ALL OBJECTS
VIBRATE WHEN VIBRATE WHEN DISTURBEDDISTURBED
![Page 36: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/36.jpg)
A VIBRATION THAT A VIBRATION THAT CAUSES ANOTHER CAUSES ANOTHER
OBJECT TO VIBRATEOBJECT TO VIBRATE
![Page 37: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/37.jpg)
THE PHENOMENON THE PHENOMENON EXHIBITED IN THE EXHIBITED IN THE
FOLLOWING VIDEO FOLLOWING VIDEO
![Page 38: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/38.jpg)
THE WAVELENGTH OF THE WAVELENGTH OF AN 88 MHz LIGHT WAVE AN 88 MHz LIGHT WAVE IF THE SPEED OF LIGHT IF THE SPEED OF LIGHT
IS 3.0x10IS 3.0x1088 m/s m/s
![Page 39: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/39.jpg)
THE LENGTH OF A THE LENGTH OF A GUITAR STRING WHICH GUITAR STRING WHICH VIBRATES AT A VIBRATES AT A FUNDAMENTAL FUNDAMENTAL FREQUENCY OF 845 Hz FREQUENCY OF 845 Hz IF THE VELOCITY OF IF THE VELOCITY OF WAVES ON THE STRING WAVES ON THE STRING IS 574 m/s IS 574 m/s
![Page 40: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/40.jpg)
![Page 41: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/41.jpg)
![Page 42: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/42.jpg)
DOPPLER EFFECTDOPPLER EFFECT
![Page 43: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/43.jpg)
THE SPEED OF A SOUNDTHE SPEED OF A SOUND SOURCE THAT EMITS A SOURCE THAT EMITS A
200 Hz PITCH IF AN 200 Hz PITCH IF AN OBSERVER HEARS A OBSERVER HEARS A
180 Hz PITCH ON A 25180 Hz PITCH ON A 25ooC C DAYDAY
![Page 44: MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”](https://reader036.fdocuments.net/reader036/viewer/2022062308/56649ea75503460f94baa778/html5/thumbnails/44.jpg)
ANS: 38.4 m/sANS: 38.4 m/s