Sound Intensity

.............................is the rate of energy flow through a given area.

• Power

• Frequency

• Intensity

• Wavelength

Audibility of sound depends on ............................... and .................................................

• Frequency and speed of sound

• Frequency and intensity of sound

• Intenstity and wavelength of sound

• Frequency and energy

Unit of intensity is ...............................

• W

• W/m

• Hz

Soft sound that can be heard by human hear has frequency of .........................Hz

• 1000

• 0

• 100000

• 2000000

The softest sounds that can be heard by the average human ear occur at a an intensity of ...............................

The loudest sounds that the human ear can tolerate have an intensity of about ......................................

Relative intensity is measured in............................

• Watts

• Joules

• Decibels

• Hertz

The human ear is divided into ........................... sections

• 2

• 4

• 5

• 3

A thin ,flat piece if tissue in the outer ear is called ........................................

• ear drum

• anvil

• stirrup

• ear canal

The three bones inside the middle ear

• ear drum, anvil and hammer

• hammer ,anvil and stirrup

• hammer ,anvil and cochlea

• cochlea ,anvil and stirrup