Physics - Sound Wave Question with Solution | TestHub

Loudness is the physiological sensation of sound which is directly related to the intensity of the sound wave. A higher intensity sound is perceived as louder.

Pitch is the characteristic of sound that determines its shrillness or flatness, and it is directly related to the frequency of the sound wave. A higher frequency sound is perceived as having a higher pitch.

Therefore, loudness and pitch are the human perceptions of the intensity of sound and the frequency of sound, respectively.

Answer: intensity of sound and frequency of sound.