Final answer:
Intensity is objective, loudness is subjective, frequency is objective, and pitch is subjective. Loudness is measured in phons and is related to intensity, but it is influenced by frequency and results in a subjective perception. Sound's frequency determines pitch, and timbre relates to the quality of sound.
Step-by-step explanation:
To classify each characteristic of sound waves:
- Intensity is an objective measurement as it refers to the energy per unit area carried by a wave, which can be quantified and measured objectively.
- Loudness is a subjective perception as it describes how humans perceive the intensity of a sound, which can vary based on individual hearing ability and the frequency of the sound.
- Frequency is an objective property of sound waves as it indicates the number of cycles a wave undergoes per second, which is independent of the listener and can be precisely measured.
- Pitch is a subjective perception as it relates to how humans perceive the frequency of a sound, and it may differ from person to person.
Sound intensity is measured in decibels, while loudness, perceived as volume, is measured in phons. The pitch of a sound is determined by its frequency, and the unique sound quality or color of a sound, influenced by both intensity and frequency, is termed timbre.