Sound Waves - SS3 Physics Past Questions and Answers - page 1

The correct answer is C. Density.

Sound waves are characterized by properties such as wavelength, frequency, and amplitude, all of which describe the wave's spatial and temporal characteristics. Density, however, is a property of the medium through which the sound wave travels, not a direct characteristic of the sound wave itself. The speed of sound is affected by the density of the medium, but the sound wave itself is defined by its wavelength, frequency, and amplitude.

Sound waves are longitudinal mechanical waves that can be heard by the human ear.

It is a pattern of disturbance caused by the movement of energy travelling through a medium as it propagates away from the source of the sound.

The medium for sound waves includes air, water or any other liquid or solid matter.

Longitudinal mechanical waves are those in which particles of the medium (such as air, water, or solids) move parallel to the direction of the wave's propagation.