Here's what it means:

* Frequency is the number of wave cycles (one complete up and down motion) that pass a fixed point in a given amount of time.

* Higher frequency means more cycles occur in the same amount of time. This means the wave is oscillating or vibrating more rapidly.

Think of it like this:

* Low frequency: A slow, relaxed, and stretched-out wave.

* High frequency: A quick, tight, and compressed wave.

Here are some important points to remember:

* Wavelength: High frequency waves have shorter wavelengths (the distance between two crests or troughs).

* Energy: Higher frequency waves carry more energy.

* Examples:

* Sound: High frequency sounds are higher pitched (like a whistle).

* Light: High frequency light is more energetic, appearing as blue or ultraviolet light.

Let me know if you'd like more details on any of these aspects!