HESI Entrance Practice Exam

The term "audible" is used to describe sounds that can be heard. It signifies that the sound is at a level of intensity or frequency that is within the range of human hearing. For a sound to be considered audible, it must fall within the typical frequency range of 20 Hz to 20,000 Hz, which is the standard hearing range for most humans. This concept is crucial in various fields, including acoustics and communication, where understanding the properties of sound is essential for effective interactions and sound design.

In contrast, "sonic" generally refers to sound that is characterized by its wave properties, often emphasizing speed or frequency rather than just the ability to hear it. "Noisy" describes sounds that are loud or disruptive but does not pertain to the specific quality of being heard. Meanwhile, "resonant" focuses on the ability of an object to vibrate in response to certain frequencies, rather than whether those vibrations produce a sound that is audible to the human ear.