Why Does the Intensity of Waves from a Small Source

question 117

Multiple Choice

Why does the intensity of waves from a small source decrease with the square of the distance from the source?

• A)The waves run out of energy as they travel.
• B)The waves spread out as they travel.
• C)The medium through which the waves travel absorbs the energy of the waves.
• D)The waves slow down as they travel away from the source.
• E)The frequency of the waves decreases as they get farther from the source.

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Definitions:

Carboxylic Acid

Organic acids featuring a carboxyl group (-COOH), which consists of a carbon atom double-bonded to an oxygen atom and single-bonded to a hydroxyl group.

OCO Bond Angle

The angle formed between the oxygen-carbon-oxygen atoms in a molecule, usually referring to the angles in carboxylic acids or esters.

Major Organic Product

The primary substance formed in the largest amount during a chemical reaction involving organic compounds.

Major Organic Product

In an organic chemical process, the predominant product yielded in the highest volume.