NCEA Level 3 Waves Practice Test

The speed of a wave is fundamentally related to its frequency and wavelength through the formula that states wave speed equals frequency multiplied by wavelength. This relationship illustrates how the characteristics of a wave are interlinked: as the frequency of the wave increases, if the speed remains constant, the wavelength must decrease, and vice versa.

In practical terms, frequency refers to the number of cycles of the wave that pass a given point in one second, while wavelength is the distance between two consecutive points in phase on the wave (such as crest to crest). The product of these two quantities gives the speed of the wave, which tells us how fast the wave travels through a medium.

This relationship is essential in many areas of physics and engineering, such as in understanding sound waves, light waves, and other forms of electromagnetic radiation. Knowing this allows for calculations in various applications, from designing musical instruments to predicting how waves behave in different environments.