By How Many Decibels Does the Intensity Level of a Sound

question 113

Multiple Choice

By how many decibels does the intensity level of a sound increase when you triple the intensity of a source of sound?

• A)9.5 dB
• B)4.8 dB
• C)6.0 dB
• D)3.0 dB
• E)12 dB

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Definitions:

Thoracic Cage

The bony and cartilaginous structure forming the skeleton of the thorax, protecting vital organs and assisting in respiration.

Costal Cartilages

Bars of hyaline cartilage that extend from the ends of the ribs to the sternum, contributing to the elasticity and expansion capability of the rib cage.

Vertebral Foramina

The holes in the vertebrae through which the spinal cord passes, forming the vertebral or spinal canal.

Lumbar Vertebrae

The five vertebrae between the rib cage and the pelvis, forming the lower part of the back.