Which of the following characteristics of sound depends on amplitude of vibration ?

Options

A. Speed
B. Pitch
C. Loudness
D. Quality

Answer

To determine which characteristic of sound depends on the amplitude of vibration, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Sound Waves**: Sound is produced by vibrations, which create waves that travel through a medium (like air). These waves have various characteristics, including frequency, wavelength, amplitude, and speed.

2. **Identifying Amplitude**: Amplitude refers to the maximum displacement of points on a wave from its rest position. In simpler terms, it is the height of the wave.

3. **Relationship Between Amplitude and Loudness**: The amplitude of a sound wave directly affects its loudness. Higher amplitude means the wave is taller, which corresponds to a louder sound. Conversely, lower amplitude means a quieter sound.

4. **Conclusion**: Therefore, the characteristic of sound that depends on the amplitude of vibration is **loudness**.

### Final Answer:
The characteristic of sound that depends on the amplitude of vibration is **loudness**.

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