What is a wave?
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![Page 1: What is a wave?](https://reader036.fdocuments.net/reader036/viewer/2022081417/5681306a550346895d964853/html5/thumbnails/1.jpg)
What is a wave?What is a wave?
Speed, wave length and frequencySpeed, wave length and frequency
![Page 2: What is a wave?](https://reader036.fdocuments.net/reader036/viewer/2022081417/5681306a550346895d964853/html5/thumbnails/2.jpg)
One vertical PulseOne vertical Pulse
Direction of wave propagation
Direction of oscillation
= transverse wave Waves on strings
![Page 3: What is a wave?](https://reader036.fdocuments.net/reader036/viewer/2022081417/5681306a550346895d964853/html5/thumbnails/3.jpg)
One horizontal PulseOne horizontal Pulse
Direction of propagation
Direction of oscillation
= longitudinal wave Compression waves
sound
![Page 4: What is a wave?](https://reader036.fdocuments.net/reader036/viewer/2022081417/5681306a550346895d964853/html5/thumbnails/4.jpg)
Reflection at a fixed endReflection at a fixed end
Reflected pulse is inverted
![Page 5: What is a wave?](https://reader036.fdocuments.net/reader036/viewer/2022081417/5681306a550346895d964853/html5/thumbnails/5.jpg)
Reflection at a loose endReflection at a loose end
Reflected pulse is not inverted
![Page 6: What is a wave?](https://reader036.fdocuments.net/reader036/viewer/2022081417/5681306a550346895d964853/html5/thumbnails/6.jpg)
Wave motionWave motionDisplacement versus time at fixed position
time
periody
![Page 7: What is a wave?](https://reader036.fdocuments.net/reader036/viewer/2022081417/5681306a550346895d964853/html5/thumbnails/7.jpg)
Wave motionWave motionStop! Snapshot at
a fixed time.Distance between
equivalent points on the wave =
wave length
The wave travels a distance of one wave length in the time of one period
![Page 8: What is a wave?](https://reader036.fdocuments.net/reader036/viewer/2022081417/5681306a550346895d964853/html5/thumbnails/8.jpg)
Speed of the waveSpeed of the wave
Speed = Distance
Time =
Wave length
period
1f
v fT