Page 127 - Primary Six Notes

&
l

; at

I ' mr

— y * - -
/
ifr;.
r -—r-. , : µ 1
• : - .
=£»
(i
»-
µJ WD J '
v »( A .

µ
µ . - " .-. '..’’*
r ' 7 V I
'Ft.felli I
5
11 aim •

Sound is used for:

 communication

 Entertainment

 Protection—some animals use certain sounds to scare away
other animals

 Promotion of culture e.g. traditional folk songs and folk ta-

les.

How is sound produced

Sound is produced when an object vibrates. Vibration is a to

and fro motion which is continuously repeated.