Question

Define the three properties of sound and comment how do they affect the characteristics of our voice.​

Answer 1

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Answer 2

Frequency, Amplitude and Waveform are the three characteristics of sound. Frequency affects the pitch of our voice, Amplitude affects loudness of our voice and waveform affects the tone of our voice.

Explanation:

• Sound is a mechanical wave.
• The propagation of sound wave happens through rarefaction and compression of the particles.

Frequency

• Frequency is the property of sound wave which is responsible for the pitch of our voice. Pitch is high when frequency is high.
• Frequency of wave is the number of total oscillations that a wave completes in a time period.

Amplitude

• Amplitude is the property of sound waveform which defines the loudness of voice. More the amplitude, higher is the loudness.
• Amplitude of wave is the maximum displacement of a particle from its original position.

Waveform

• Waveform of sound wave determines the timbre of voice. It describes the source of produced sound, whether it is a guitar note or a piano note.
• Different instruments produce different type of sound waveform.