The changed pitch of the doppler effect is due to changes in what?

Wave frequency.

The changed pitch of the Doppler effect is due to changes in the frequency of sound waves. The frequency of a sound wave refers to the number of cycles per second, or vibrations, that the sound wave produces. It determines the pitch of the sound.

To understand how the Doppler effect affects pitch, let's first explain what the Doppler effect is. The Doppler effect is a phenomenon that occurs when there is relative motion between a source of sound and an observer. As the source of the sound moves closer to the observer, the wavelength of the sound waves is compressed, resulting in a higher frequency, and therefore, a higher pitch. On the other hand, if the source of the sound moves away from the observer, the wavelength is stretched, resulting in a lower frequency and a lower pitch.

So, in summary, changes in the pitch of the Doppler effect are due to changes in the frequency of sound waves caused by the relative motion between the source of the sound and the observer.

The changed pitch of the Doppler effect is due to changes in the frequency of the sound waves.