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A student views a table of the speed of sound waves in three different materials.



Material
Speed

(meters/second)

Density

(kg/m3)

air 330 1.20
water 1,500 1000
glass 5,100 2,500


Which conclusion can be drawn based on the information in the table?
A.
Sound travels faster in glass because it has a lower density than the other materials.

B.
Sound travels faster in glass because it has a higher density than the other materials.

C.
Sound travels slower in water because it has a lower density than the other materials.

D.
Sound travels slower in air because it has a higher density than the other materials.

1 answer

The correct conclusion based on the information in the table is:

B. Sound travels faster in glass because it has a higher density than the other materials.

This conclusion reflects the relationship between the speed of sound and the density of the medium. Although sound generally travels faster in denser materials, it is important to note that other factors, such as elastic properties, also affect the speed of sound. In this specific case, glass has a higher density compared to air and water, and indeed, the speed of sound is higher in glass than in the other materials listed.