Basic definition: A vibration of a system in which some particular points remain fixed while others between them vibrate with the maximum amplitude.
-As the frequency increases the wavelength decreases -In the beginning, only one wave was required to go from start to end -then we needed two, then 3 and so on -thus the wavelength is decreasing since we are getting more wavelengths.
Now for the amplitude, as you can see from the pictures above, the amplitude stays consistent throughout. Whether the frequency increases or decreases, whether the wavelength increases or decreases, the amplitude stays the same.
(I could not use the links that were given in the handout because of security issues so that is why I was unable to see the waves at 25 Hz, 50 Hz, 75 HZ, etc.)