Answer:
The pitch of a sound is directly related to its frequency.Correct answer is A) directly related to its frequency.The pitch of a sound is directly related to its frequency. In other words, higher frequency sounds are perceived as having a higher pitch, while lower frequency sounds are perceived as having a lower pitch.
Step-by-step explanation:
A) directly related to its frequency.
The pitch of a sound is directly related to its frequency and inversely related to its wavelength. Pitch is a perception that is linked to the frequency of the sound wave; higher frequency leads to higher pitch and vice versa.
Larger frequency oscillations involve higher pressure maxima and minima, signifying greater sound intensity, but this is related to volume, not pitch.
Likewise, the size of musical instruments often correlates with the pitch they produce, with smaller instruments typically making high-pitch, short-wavelength sounds, and large instruments making low-pitch, long-wavelength sounds.
The amplitude of a sound wave is not related to the speed of sound but rather to the loudness of the sound we perceive.
As amplitude increases, so does loudness.
The equation Uw = fa shows the relationship between the speed of sound (U), its frequency (f), and wavelength (λ), but it does not connect speed with amplitude.
Moreover, amplitude is independent of the speed of the wave.
The question of whether turning up the volume of your stereo will change the pitch has a clear answer: No, because pitch does not depend on intensity; increasing the volume increases the amplitude, thereby increasing loudness, not pitch.