What's the relationship between wavelength and amplitude? If a wave is really long, does that mean that it has a high amplitude? :)

Answer 1

There is no relationship between amplitude and wavelength.

Answer 2

Wavelength is the length from one crest (peak) of the wave to the next crest or from one trough (the bottom peak) to the next trough. Amplitude is the height of the wave, not the length.

There's not necessary a relationship between wavelength and amplitude. Wavelength is related to frequency.