The term used for sounds that can be perceived by humans is which?

The term used for sounds that can be perceived by humans is which?

• A. Sonics
• B. Sound
• C. Ultrasound
• D. Infrasound

Answer: (A)

Sounds within the range humans can hear fall into the audible category. Humans typically perceive frequencies from about 20 Hz up to 20 kHz, and terms used to describe what falls in that range include “sonics.” Ultrasound refers to frequencies higher than the audible range, while infrasound refers to frequencies lower than what we can hear. The word “sound” is general and can mean any vibration that travels as a wave, not specifically limited to what people can perceive. So, the term that best fits sounds perceptible by humans is sonic sounds, distinguishing them from ultrasound and infrasound.

Sounds within the range humans can hear fall into the audible category. Humans typically perceive frequencies from about 20 Hz up to 20 kHz, and terms used to describe what falls in that range include “sonics.” Ultrasound refers to frequencies higher than the audible range, while infrasound refers to frequencies lower than what we can hear. The word “sound” is general and can mean any vibration that travels as a wave, not specifically limited to what people can perceive. So, the term that best fits sounds perceptible by humans is sonic sounds, distinguishing them from ultrasound and infrasound.