Here's why:

* Frequency is how often a wave repeats itself in a given time. It's measured in Hertz (Hz), which is cycles per second.

* Wavelength is the distance between two corresponding points on a wave, like the distance between two crests or two troughs.

The relationship between frequency (f) and wavelength (λ) is inversely proportional, meaning:

* Low frequency = Long wavelength

* High frequency = Short wavelength

Think of it like this:

* High frequency waves are like a fast drummer playing lots of beats per minute. The beats are close together, so the wavelength is short.

* Low frequency waves are like a slower drummer playing fewer beats per minute. The beats are farther apart, so the wavelength is long.

This relationship applies to all types of waves, including sound waves, light waves, and water waves.