Question

What is a sound wave? What information can you determine about the sound wave if you know it's amplitude? What about it's frequency? What factors affect the velocity of a sound a wave?

Answer 1

Soun wave is longitudional mechanical wave which transfer in terms of pressure difference and caused by vibration of particles.

By knowiny amplitude of sound wave we can find find intensity and then we can get its loudness.

where A is amplitude of sound wave.

Frequency of audiable sound is from 20 Hz to 20,000 Hz.

Sound frequency is equal to vibration frequency of sound creating object.

Pressure doesnot effect sound speed.

Density of medium affects sound speed. In humied medium sound speed is less than dry air.

with increase in temperature sound speed increases.

With increase in elasticity of medium sound speed increases.

velocity of sound is greater in solid and then liquid and less in air.

Thanks for asking.