Final answer:
Our listening level (amplitude) affects how well we hear certain frequencies compared to others. Low-frequency sounds are lower pitched, and high-frequency sounds are higher pitched. We are generally more sensitive to frequencies between 1000 and 5000 Hz.
Step-by-step explanation:
The human ear is more sensitive to some frequencies than to others, which means that our listening level (amplitude) affects how well we hear certain frequencies compared to others. The volume we perceive depends on both the amplitude of a sound wave and whether its frequency lies in a region where the ear is more or less sensitive.
For example, low-frequency sounds are lower pitched and high-frequency sounds are higher pitched. In general, our perception of loudness is influenced by both the amplitude and frequency of a sound wave. A 10 Hz sound wave is inaudible regardless of its amplitude, while a 1000 Hz sound wave would vary in perceived loudness as the amplitude increases.
Regarding which frequencies are affected the most by our listening level, this depends on individual differences in sensitivity. However, within the audible range, we are generally more sensitive to frequencies between 1000 and 5000 Hz, with our sensitivity decreasing for frequencies below 1000 Hz or above 5000 Hz.