(Definition of âhowdyâ from the Cambridge Academic Content Dictionary Â© Cambridge University Press)
A wave is an up and down movement of water. When we talk about waves, we use special words to name their parts. The highest point of a wave is called the crest. The lowest point is called the trough. Wave height is the vertical distance between the crest and trough. Wavelength is the horizontal distance between waves in a series. Wavelength can be measured between two wave crests. It can be measured between two wave troughs.
The vertical distance between the wave crest and trough is the wave height. The amplitude of the wave is half of the wave height. The distance from a certain point on one crest or trough to the same point on the next crest or trough is the wavelength. The period is the amount of time it takes for succeeding crests to pass a specified point.