What is the density of a medium?
the measure of how fast a sound wave can travel through the medium
the amount of mass in a given amount of space, or volume
the ability of the medium to bounce back after being disturbed
the amount of heat energy that can be absorbed by the medium
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The correct answer is: the amount of mass in a given amount of space, or volume. Density is defined as mass per unit of volume, expressed in kilograms per cubic meter (kg/m3) in the SI system. It is a physical property of matter that helps to describe how tightly packed the particles are within a substance. The denser a medium is, the slower sound waves can travel through it.
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