TTO 1 Chapter 5.3 Sound: Loudness and Decibel
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Slide 1 - Diapositive
Slide 2 - Diapositive
Slide 3 - Diapositive
Slide 4 - Diapositive
Using the sound meter app measure 5 different sounds. Write them down and there loudness in decibel
Slide 5 - Question ouverte
Slide 6 - Diapositive
Slide 7 - Diapositive
Slide 8 - Diapositive
Slide 9 - Diapositive
Slide 10 - Diapositive
In a football stadium the loudness is measured at the centre of the pitch. If 1000 people cheer the loudness is 80 dB. What will the loudness be if 2000 people cheer?
Slide 11 - Question ouverte
In a football stadium the loudness is measured at the centre of the pitch. If 1000 people cheer the loudness is 80 dB. What will the loudness be if 100.000 people cheer?
Slide 12 - Question ouverte
Slide 13 - Diapositive
If the loudness is 20 dB and the frequency is 50 Hz can you hear the sound?
A
Yes
B
No
Slide 14 - Quiz
If the loudness is 100 dB and the frequency is 1 kHz (1000 Hz) can you hear the sound?
A
YES
B
NO
Slide 15 - Quiz
Slide 16 - Diapositive
How do we measure sound intensity or loudness
Slide 17 - Question ouverte
Describe some of the risks of loud sounds and how to reduce the risks
