What corresponds to low and high loudness in terms of sound intensity?

The correct response is associated with the relationship between loudness and the intensity of sound. Loudness is a perceptual attribute of sound that is closely linked to the sound's intensity, which is the power carried by sound waves per unit area in a direction perpendicular to that area. As sound intensity increases, it typically results in a higher perceived loudness; lower intensities correspond to lower loudness.

In terms of sound intensity, low loudness corresponds to low intensity levels, meaning the sound energy is weaker, while high loudness corresponds to high intensity levels, where sound energy is stronger and more powerful. Thus, the correlation between loudness and intensity is essential for understanding how different levels of sound affect human perception.

Other options, while they may relate to aspects of sound perception, do not accurately reflect the relationship between loudness and intensity. For example, discomfort relates to the threshold at which sound becomes painful, echo pertains to the reflection of sound waves, and frequency concerns the pitch of the sound rather than its loudness. Therefore, the relationship of loudness to sound intensity is the most relevant and pertinent concept in this context.