properties of waves amplitude, wavelength, frequency, speed
TRANSCRIPT
![Page 1: Properties of Waves Amplitude, Wavelength, Frequency, Speed](https://reader034.vdocuments.site/reader034/viewer/2022050802/56649cb95503460f949807e6/html5/thumbnails/1.jpg)
Properties of WavesProperties of Waves
Amplitude, Wavelength, Amplitude, Wavelength, Frequency, SpeedFrequency, Speed
![Page 2: Properties of Waves Amplitude, Wavelength, Frequency, Speed](https://reader034.vdocuments.site/reader034/viewer/2022050802/56649cb95503460f949807e6/html5/thumbnails/2.jpg)
Slide 1Slide 1Main IdeaMain Idea How to draw How to draw
wave wave diagramsdiagrams
DetailsDetails Draw a transverse Draw a transverse
wave like a wavy wave like a wavy roperope
Draw a longitudinal Draw a longitudinal wave like spring wave like spring (slinky) stretching (slinky) stretching and compressingand compressing
![Page 3: Properties of Waves Amplitude, Wavelength, Frequency, Speed](https://reader034.vdocuments.site/reader034/viewer/2022050802/56649cb95503460f949807e6/html5/thumbnails/3.jpg)
Slide 2Slide 2Main IdeaMain Idea What is What is
amplitudeamplitude
DetailsDetails Amplitude is the Amplitude is the
maximum distance of the maximum distance of the medium particles from medium particles from REST to CRESTREST to CREST
Draw a straight line Draw a straight line down the middle of the down the middle of the wave, half-way between wave, half-way between Crest and Trough. This Crest and Trough. This is the Rest positionis the Rest position
More amplitude takes More amplitude takes more energymore energy
![Page 4: Properties of Waves Amplitude, Wavelength, Frequency, Speed](https://reader034.vdocuments.site/reader034/viewer/2022050802/56649cb95503460f949807e6/html5/thumbnails/4.jpg)
Slide 4Slide 4Main IdeaMain Idea What is What is
amplitude of amplitude of transverse transverse waves?waves?
DetailsDetails Distance from REST Distance from REST
to CREST –or- REST to to CREST –or- REST to TROUGHTROUGH
![Page 5: Properties of Waves Amplitude, Wavelength, Frequency, Speed](https://reader034.vdocuments.site/reader034/viewer/2022050802/56649cb95503460f949807e6/html5/thumbnails/5.jpg)
Slide 4Slide 4Main IdeaMain Idea What is What is
amplitude of amplitude of Longitudinal Longitudinal waves?waves?
DetailsDetails Amplitude is how Amplitude is how
compressed or compressed or rarefied the medium rarefied the medium is.is.
One compression to One compression to another is like one another is like one crest on a transverse crest on a transverse wavewave
![Page 6: Properties of Waves Amplitude, Wavelength, Frequency, Speed](https://reader034.vdocuments.site/reader034/viewer/2022050802/56649cb95503460f949807e6/html5/thumbnails/6.jpg)
Slide 4Slide 4Main IdeaMain Idea What is What is
wavelengthwavelength
DetailsDetails Distance between Distance between
two corresponding two corresponding parts of a waveparts of a wave
Transverse – Crest to Transverse – Crest to Crest –or- Trough to Crest –or- Trough to TroughTrough
Longitudinal- Longitudinal- Compression to Compression to CompressionCompression
![Page 7: Properties of Waves Amplitude, Wavelength, Frequency, Speed](https://reader034.vdocuments.site/reader034/viewer/2022050802/56649cb95503460f949807e6/html5/thumbnails/7.jpg)
Slide 4Slide 4Main IdeaMain Idea What is What is
frequency?frequency?
DetailsDetails Frequency is number Frequency is number
of waves that pass a of waves that pass a point in one secondpoint in one second
Measured in HERTZ Measured in HERTZ (one hertz=one wave (one hertz=one wave per second)per second)
![Page 8: Properties of Waves Amplitude, Wavelength, Frequency, Speed](https://reader034.vdocuments.site/reader034/viewer/2022050802/56649cb95503460f949807e6/html5/thumbnails/8.jpg)
Slide 4Slide 4Main IdeaMain Idea What is What is
speed?speed?
DetailsDetails Speed is how far a Speed is how far a
wave travels in one wave travels in one unit of time unit of time (distance/time)(distance/time)
Speed = wavelength x Speed = wavelength x frequencyfrequency
Frequency=speed/Frequency=speed/wavelengthwavelength
Wavelength=speed/Wavelength=speed/frequencyfrequency
![Page 9: Properties of Waves Amplitude, Wavelength, Frequency, Speed](https://reader034.vdocuments.site/reader034/viewer/2022050802/56649cb95503460f949807e6/html5/thumbnails/9.jpg)
How fast do waves move?
![Page 10: Properties of Waves Amplitude, Wavelength, Frequency, Speed](https://reader034.vdocuments.site/reader034/viewer/2022050802/56649cb95503460f949807e6/html5/thumbnails/10.jpg)
Period
The time it takes for 1 wave to pass by,
measured in seconds
![Page 11: Properties of Waves Amplitude, Wavelength, Frequency, Speed](https://reader034.vdocuments.site/reader034/viewer/2022050802/56649cb95503460f949807e6/html5/thumbnails/11.jpg)
Frequency
The number of waves that pass by in 1
second
![Page 12: Properties of Waves Amplitude, Wavelength, Frequency, Speed](https://reader034.vdocuments.site/reader034/viewer/2022050802/56649cb95503460f949807e6/html5/thumbnails/12.jpg)
Frequency is measured in Hertz
Hz = 1 Second
![Page 13: Properties of Waves Amplitude, Wavelength, Frequency, Speed](https://reader034.vdocuments.site/reader034/viewer/2022050802/56649cb95503460f949807e6/html5/thumbnails/13.jpg)
![Page 14: Properties of Waves Amplitude, Wavelength, Frequency, Speed](https://reader034.vdocuments.site/reader034/viewer/2022050802/56649cb95503460f949807e6/html5/thumbnails/14.jpg)
Frequency = 1
Period
![Page 15: Properties of Waves Amplitude, Wavelength, Frequency, Speed](https://reader034.vdocuments.site/reader034/viewer/2022050802/56649cb95503460f949807e6/html5/thumbnails/15.jpg)
Example: A wave passes by every 2 seconds
Period = 2 s
Frequency = ½ = 0.5 Hz
![Page 16: Properties of Waves Amplitude, Wavelength, Frequency, Speed](https://reader034.vdocuments.site/reader034/viewer/2022050802/56649cb95503460f949807e6/html5/thumbnails/16.jpg)
Wave Speed
The speed at which a wave passes
through a medium
![Page 17: Properties of Waves Amplitude, Wavelength, Frequency, Speed](https://reader034.vdocuments.site/reader034/viewer/2022050802/56649cb95503460f949807e6/html5/thumbnails/17.jpg)
Wave speed =
Frequency x wavelength
(Hz) (m)
Unit for speed is m/s
![Page 18: Properties of Waves Amplitude, Wavelength, Frequency, Speed](https://reader034.vdocuments.site/reader034/viewer/2022050802/56649cb95503460f949807e6/html5/thumbnails/18.jpg)
Example 1
How fast is a wave moving that has a
frequency of 5 Hz and a wavelength of 0.5 m?
![Page 19: Properties of Waves Amplitude, Wavelength, Frequency, Speed](https://reader034.vdocuments.site/reader034/viewer/2022050802/56649cb95503460f949807e6/html5/thumbnails/19.jpg)
Speed = Frequency x Wavelength
Speed = 5 Hz x 0.5 m
Speed = 2.5 m/s
![Page 20: Properties of Waves Amplitude, Wavelength, Frequency, Speed](https://reader034.vdocuments.site/reader034/viewer/2022050802/56649cb95503460f949807e6/html5/thumbnails/20.jpg)
Example 2
A wave passes by every 3 seconds and the distance between each crest of the wave is 5 meters. What is
the speed of the wave?
![Page 21: Properties of Waves Amplitude, Wavelength, Frequency, Speed](https://reader034.vdocuments.site/reader034/viewer/2022050802/56649cb95503460f949807e6/html5/thumbnails/21.jpg)
Period = 3 seconds
Frequency = 1/3 = 0.33 Hz
Wavelength = 5 m
Speed = 0.33 Hz x 5 m
Speed = 1.65 m/s
![Page 22: Properties of Waves Amplitude, Wavelength, Frequency, Speed](https://reader034.vdocuments.site/reader034/viewer/2022050802/56649cb95503460f949807e6/html5/thumbnails/22.jpg)
Example 3
A mosquito makes a sound by beating its wings 600
times every second. If the sound waves move at 340
m/s, what is the wavelength of the sound waves?
![Page 23: Properties of Waves Amplitude, Wavelength, Frequency, Speed](https://reader034.vdocuments.site/reader034/viewer/2022050802/56649cb95503460f949807e6/html5/thumbnails/23.jpg)
Speed =freq.x wavelength340 m/s = 600 x wavelength
Wavelength = 0.57 m