Sound Concept Map

Sound concept map for year 8

1. Sound
Target
To draw a concept map for the
topic
Monday 6 October 2008

2. Sound
Frequency
Amplitude
Volume
Loud sound
Quiet sound
High pitch
Low pitch
Hertz
Decibels
Human
range is
20 Hz to
20000Hz
Noise
pollution
Unwanted
sound
Vacuum
Solids
Gases
Vibrations
Speed of
sound
About 300
metres per
second
Caused by
But cannot be heard
in a
Waves per
second is-
Many waves
Few waves
Shown by
Measured
in
Fastest in
In air speed is
Too much
is
is
in
Slowest in