A braking train emits a very loud, high-pitched sound.Explain whether the amplitude, frequency and wavelength of the sound waves are relatively high or low.

The loudness of a sound is determined by its amplitude. Therefore, if the train's braking sound is very loud, the amplitude of the sound waves is high.

The pitch of a sound is determined by its frequency. High-pitched sounds have high frequencies. Therefore, if the train's braking sound is high-pitched, the frequency of the sound waves is high.

The wavelength of a sound is inversely proportional to its frequency. This means that sounds with high frequencies have short wavelengths. Therefore, if the train's braking sound is high-pitched (and thus has a high frequency), the wavelength of the sound waves is relatively low.