138k views
1 vote
Which evidence statement below best supports the claim: "As the vibrations/oscillations increase in the speaker, so does the level of sound emitted"?

A. Evidence that supports this claim is when energy increases the vibrations in the speaker decrease and sound coming from the speaker also decreases. I know this because when I increase the volume dial/button sound becomes quieter and the speaker moves less.
B. Evidence that supports this claim is when energy increases so does the vibrations in the speaker and sound coming from the speaker. I know this because when I increase the volume dial/button sound becomes louder and the speaker moves more.

1 Answer

2 votes

Final answer:

The correct evidence statement supporting the claim that increased vibrations in a speaker lead to louder sound is statement B, which aligns with the principles of sound wave amplitude affecting volume. A larger amplitude results in a louder sound due to stronger pressure variations in the sound wave, and the energy of the sound wave is proportional to its amplitude squared.

Step-by-step explanation:

The correct evidence statement that best supports the claim "As the vibrations/oscillations increase in the speaker, so does the level of sound emitted" is: B. Evidence that supports this claim is when energy increases so does the vibrations in the speaker and sound coming from the speaker. This statement is consistent with the principles of sound waves and how they interact with the surrounding environment. When the volume dial/button is increased, the sound becomes louder and the speaker moves more, indicating that more energy is causing greater vibrations.

This can be understood by recognizing that the amplitude of a sound wave determines its loudness or volume. A larger amplitude means a louder sound, as it indicates stronger pressure variations in the sound wave. The vibration of a source, like a speaker, sets the amplitude of a wave. An increased amplitude corresponds to more energetic vibration, which in turn means that the molecules in the medium move back and forth more vigorously, creating a louder sound.

Moreover, it's important to note that the energy of a sound wave is also proportional to amplitude squared, reaffirming that as vibrations in the speaker increase, so does the sound intensity. The intensity of a sound, which relates to our perception of loudness, is thus higher with larger-amplitude vibrations.

User Habib Zare
by
7.8k points