sound

3. Drum
Tabla
Violine
Veena
Flute

5.  drum
 flute
 violin
 veena
 tabla
 Stretched membrane
 Air column
 Stretched string
 Stretched string
 Stretched membrane
MUSICAL INSTRUMENT
VIBRATING PART
PRODUCING SOUND

6. Turning fork is
invented by
british musician
John Shore.
Turning forks
vibrate when strike
it against a surface
or with an
object.different
turning forks have
different
frequencies.

10. The intensity of sound is
proportional to the amplitude of the
sound. The intensity of the sound is the
amount of energy passing through unit
area per second perpendicular to the
direction of propagation. Its unit is
W/m^2

11. o Loudness is the measure of audibility
produced by sound in a person.
o It depends on
Intensity
Frequency
Efficiency
o Unit is Decibel(db)

12.  Amplitude.
 Surface area.
 Distance between source and listener.
 Density of the medium.

13.  Normal breathing
 Soft whisper
 Normal conversation
 Busy traffic
 Average factory
 10db
 30db
 60db
 80db
 90db

15.  Chriping of crickets
 Whistles
 Birds sound
 Voice of women
 Cow
 Drum
 Lion,crow,duck
 Voice of man