Question

the loudness of sound is determined by the ____ of sound waves. a recording b wavelength c frequency d intensity

Explanation:

• Option a: Recording is the act of capturing sound, not what determines its loudness.
• Option b: Wavelength is related to the distance between successive crests of a wave, not loudness.
• Option c: Frequency determines the pitch of a sound, not its loudness.
• Option d: Intensity of sound waves (which is related to the amplitude of the wave) determines the loudness of the sound. The higher the intensity (amplitude), the louder the sound.

Answer:

d. intensity