What are wavelength increases?

Wavelength increases mean that waves get longer, just like when you stretch out a slinky.

Imagine you're playing with a slinky on the floor. When you push it back and forth quickly, the waves are short, like little bounces. But if you move it slowly, the waves take more time to go from one end to the other, they’re longer, or have a larger wavelength.

Think of it like this:

• A short wave is like a quick flick, fast and tight.
• A long wave is like a slow push, smooth and stretched out.

Now, imagine you're in a pool. When the water moves slowly, the ripples are big and spread out, that’s a larger wavelength. If the water moves quickly, the ripples are small and close together, that's a smaller wavelength.

So, when we say wavelength increases, it's like going from quick flicks to slow pushes, the waves get longer and more spaced out.