Question

difference between soft and loud sound

Answer 1

Dear student
Sound is produced by vibrating bodies. If energy is supplied is less to an object, then object vibrates with a feeble sound or soft sound.
on the other hand, if energy supplied to an object is more than the object vibrates more with greater amplitude and produces louder sound.
Conclusion:
1.Loudness of sound is a measure of the sound energy reaching the ear per second.
2. The loudness of sound depends upon the amplitude of sound wave
3. If a sound wave have a small amplitude, then the sound will be faint(soft).
4.If a sound wave have more amplitude, then sound will be loud.
 
Hope its clear.

Answer 2

Normally if we see the difference between sound and loud sound is the intensity of sound. If we look at its application the sound of a DJ may sound nice from a distance but when we go closer it becomes noise. The sound we enjoy becomes music, but that we do not enjoy becomes noise.

Technically speaking sound is a type of wave. Wave is measured by amplitude. Its measurement is done by decibel.   The more amplitude sound has it becomes louder. So we can say that higher amplitude makes a sound a loud sound.