Question

Characteristics of Sound Woves
1. Bxplain the effect of amplitude on sound
2. How does frequency of the quality of sound
3. How can noise pollution be reduced​

Answer 1

HI MATE,

HEAR IS YOUR ANSWER,

Sound wave can be described by five characteristics:

• Amplitude,
• Time-Period,
• Frequency
• Velocity
• Speed.
• Wavelength

       The effect of amplitude on sound,

1. Through amplitude you get to know the size of the Vibration.A greater amplitude will mean a louder sound and smaller will be a dim sound ( a very low amplitude can indicate silence), amplitude itself can not affect the sound, it is just a way of telling about the sound's loudness. By definition,it is the measurement of the degree of change in atmospheric pressure caused by sound waves.You might be thinking change in atmospheric pressure? Yes, in rarefaction and compression when air molecules space apart and come closer respectively there is a change in the volume that contributes to change in atmospheric pressure.  
2. For a large vibration that is a louder tone, you express a larger amplitude meaning there is a greater degree of change in atmospheric pressure and for the dim tone you express it with a smaller amplitude, showing the smaller change in atmospheric pressure.  
3. You might know amplitude as the maximum displacement of particles from the equilibrium position.  
4. That is absolutely right but it is impossible to measure displacement, since for typical sound waves, the maximum displacement of the molecules in the air is only a hundred or a thousand times larger than the molecules themselves — and what technologies are there for tracking individual molecules anyway?

• Pressure fluctuations caused by sound waves are much easier to measure , so for sound waves we define amplitude as an extent of change in atmospheric pressure caused by the sound waves.

• As far as your question is concerned, amplitude itself gets affected by other quantities and can influence sound intensity ( acoustic energy). If you are asked that how the amplitude affects the sound waves you just write what it expresses because it itself is the tool to measure sound's loudness not a factor affecting it!

         How does frequency effects the quality of sound,

1.          Frequency is the numbers of waves per second. Frequency is inversely proportional to amplitude. the frequency is more than the amplitude will be less and pitch is more which makes the sound sharper and less loud. While if the frequency is less than amplitude will be more making the sound louder.

         How can noise pollution be reduced​,

1. Turn off Appliances at Home and offices
2. Shut the Door when using noisy Machines
3. Use Earplugs
4. Lower the volume
5. Stay away from Noisy area
6. Control Noise level near sensitive areas
7. Go Green by planning trees
8. Follow the Limits of Noise level
9. Create Healthy noise to eliminate unwanted noise
10. Use Noise absorbents in noisy machineries
11. Use Proper Lubrication and Better maintenance
12. Notify Authorities about Disobedience of Noise Rules
13. Regularly check noise level

     HOPE IT  WILL HELP

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