What is the distance between one wave crest and the next called?

The distance between one wave crest and the next is referred to as wavelength. Wavelength is a fundamental property of waves that measures the length of one complete cycle of the wave, which is determined by the distance from one peak (or crest) to the next peak (or crest). This measurement is critical in various fields, such as physics and engineering, as it helps in understanding wave behavior in different mediums.

Understanding wavelength is essential in many applications, such as in sound and light waves, where different wavelengths correspond to different frequencies and energies. For instance, shorter wavelengths typically correspond to higher frequencies and energy, while longer wavelengths correspond to lower frequencies and energy. This relationship is foundational to concepts such as color in light and pitch in sound.