Includes activity sheets with 27 achievable experiments.

Topics covered

Hearing
When we hear a sound
-The oscillations
-The period of oscillations
-The frequency of oscillations
-The graphical representation of the oscillations
Because we hear sounds.
Acoustic waves
How are acoustic waves transformed into sounds?
The ear: a receiver of acoustic waves.
The ear-brain system
-The limits of audibility
-The sensitivity of the auditory system
How to enhance hearing sensitivity
-The distinctive characteristics of sound
The stereo
-The reflection of acoustic waves
-The interference of acoustic waves
-The heartbeats
-Sound level meter: sound level meter
-Resonance
Stringed musical instruments
Wind musical instruments
Hearing aid care