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PRESENTACIÓN del sonido
dariorayahidalgo08
Created on November 26, 2024
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Transcript
sound and noise pollution
JOSÉ dAVId rAYA hIDALGO
Index
Sound and Noise
Noise Pollution
Activities that produce more than 65dB
Sonometer
Effects of noise pollution
Sound and Noise
How is sound produced ?
The sound is generated when particles move through a medium (air, water and metals) leaving their state of rest like waves.
What kind of matters can sound waves travel through?
Which matter can sound wave travel faster through?
The sound can travel through several ways; which can be solid, liquid, or gaseous (air). It travels faster through the iron than others matters.
Two differences between sound and noise: Draw sound waves and noise waves
Sound waves are regular and tidy
Noise waves are irregular and untidy
Noise pollution
What is Noise Pollution ?
Noise pollution is the presence of sound or vibrations in the environment that exceed 65 decibels
Activities for reduce noise pollution
use Soft lights
Dont`t slam door
use public transport
respect night silence
don´t shout
Activities that produce more than 65 DB
industry
traffic
WORKS IN THE sTREET
air traffic
animals
SONOMETER
What is a sonometer ? How does it work?
It´s an instrument that use for measure the intensity of noise. The noise level is measured in decibels.
Measure the decibels in....
A busy street
75 dB
Watching TV
55 dB
62.5 dB
Listening to music
29 dB
Being total silence in your room
93.5 dB
Having a shower