it depends on what you are talking about if your talking about light here it is light can be classified as a wave when your talking about crests and troughs a crest is the top most part of the wave if you split the wave in half the trough has the same principle it is the lowest most part of the wave if you split it in half does that clarrify a little bit?
Crest to trough
If it's crest to crest and trough to trough then it's the wavelength.
Measuring a wave from crest to trough in the verticaldirection will give the amplitude of the wave. It's called the peak to peak value (as it is is a measure of the distance from the positive peak to the negative peak -- the crest and trough). Measuring the wave in the horizontal direction from a crest to a trough will result in half a wavelength.Picture a water wave frozen on the surface of a pond. The distance (verticaly) from the bottom of a trough to the top of a crest is the amplitude of that wave. A measure of the distance (horizontally) from the bottom of a trough to the top of a crest is half the wavelength of the wave. (Note that athe use of "bottom of a trough" and "top of a crest" might seem redundant or even nonsensical, but is applied here in the hopes of clarity.)
The highest parts of a transverse wave are CRESTS.
Crest and Trough Amplitude Wavelength Frequency
From crest to crest or trough to trough
False. The wavelength of a wave is actually measured from crest to crest, or trough to trough, not from crest to trough.
From crest to crest or trough to trough
Is the wave length
wavelength
crest and trough. The crest is the highest point of a wave, while the trough is the lowest point.
The distance from a crest to a crest or a trough to a trough in a wave.
The distance from crest to crest or trough to trough is called the wavelength of a wave. It represents the distance over which the wave's shape repeats itself.
In the direction of propagation, it's one-quarter the wavelength. Perpendicular to that, it's the amplitude (or half the amplitude, depending on what definition you're using).
The wavelength of a wave is the distance between two identical parts of a wave in successive periods (crest to crest, trough to trough, etc.).
Usually it is shown in diagrams as from where the variable passes across the zero line, but your way will give the same result. It is the length of one complete cycle that matters.
it has to do with waves. trough- is the bottom of the wave crest- is the top of the wave