Which of the following statements are TRUE of sound waves? Identify all that apply.
A sound wave is a mechanical wave.
A sound wave is a means of transporting energy without transporting matter.
Sound can travel through a vacuum.
A sound wave is a pressure wave; they can be thought of as fluctuations in pressure with respect to time.
A sound wave is a transverse wave.
To hear the sound of a tuning fork, the tines of the fork must move air from the fork to one's ear.
Most (but not all) sound waves are created by a vibrating object of some type.
To be heard, a sound wave must cause a relatively large displacement of air (for instance, at least a cm or more) around an observer's ear.