properties of sound
INTENSITY
- IF A SOUND IS LOUD OR QUIET
IN THE MINUTE 0:30 IS A CRETCHENDO FROM MEZZOFORTE TO FORTÍSIMO
DURATION
- IF A SOUND IS LONG OR SHORT
SOUND POLLUTION
1. Read the explanation about noise pollution and watch the related video.
a) List the different types of noise pollution mentioned in the video.
b) What decibel level does the World Health Organization define as noise pollution? Is it the same for all cities and all public places?
c) Describe four negative effects of noise pollution that have an impact on people’s health.
2. complete these sentences with words related to sound qualities:
a) The property or parameter relating to time is .
b) A loud or soft sound tells us about its .
c) That voice sounds familiar; I recognise its .
d) His voice was so that I could hardly hear it.
e) That siren was emitting a sound that was very .
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