The __________ in ear senses the vibrations of sound, it sends the signals to the brain.
Larynx
Eardrum
Voice box
None of these
The eardrum in ear senses the vibrations of sound, it sends the signals to the brain. This process is called hearing.
Statement 1: Sound vibrations make the ear drum vibrate, the ear drum sends a vibration to the inner ear, from there the signal goes to the brain. Statement 2: Ear drum is a thin stretched membrane.
(a) What is the name of the strings in the human voice box which vibrate to produce sound?
(b) What makes these strings vibrate?
Fill in the following blanks with suitable words:
(a) Sounds are produced by ___objects.
(b) The human voice box is called___
(c) Sound cannot travel in___
(d) A set of three ___tiny in the middle part of ear passes on sound vibrations from the eardrum to the liquid in cochlea.
(e) The unit of frequency is___
(f) The timet taken by an object to complete one oscillation is called ___
(g) The shrillness of a sound is determined by the___ of vibration.
(h) Unpleasant sound is called___
(i) Sound which is pleasing to the era is called___ sound
(j) A person having partial hearing loss can hear properly by wearing a device called hearing___ on the ear.