The wavelength formula is a fundamental concept in physics, particularly in the ... one crest (the highest point) to the next crest or from one trough (the lowest point) to the next trough.

A boat at sea bobs up and down as waves pass. The vertical distance between a crest and a trough is 52 cm and 20 waves pass the boat in 30 seconds. 1. The amplitude of a wave is the maximum ...

It is often easiest to measure this from the crest (top) of one wave to the crest of the next wave or the trough (bottom) of one wave to the trough of the next wave. It doesn't matter where you ...