What two properties of a material affect the speed of sound in the material?
A) Buoyant force and density.
B) Specific heat and density.
C) Density and volume.
D) Density and stiffness.

Question

Quizplus · Accepted Answer

The speed of sound in a material is primarily affected by its density and stiffness. A lower density and higher stiffness generally allow sound to travel faster. Stiffness relates to the material's ability to resist deformation, directly influencing how sound waves propagate through it.

What Two Properties of a Material Affect the Speed of Sound