When you change the frequency of a wave, it impacts several important traits:

• Wavelength: This is connected to frequency in a special way. When the frequency (we call it $f$) goes up, the wavelength (which we call $\lambda$) gets shorter. You can figure this out with the formula: $\lambda = \frac{v}{f}$ Here, $v$ stands for the speed of the wave.

• Speed: The speed of a wave usually stays the same if it’s in the same material. This speed depends on what that material is like.

• Amplitude: Changing the frequency doesn’t directly change the amplitude. Amplitude is more about the energy of the wave.

For example, if you double the frequency, the wavelength will be half as long, but the speed will stay the same.