Extra stof 5.3
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Éléments de cette leçon
Slide 1 - Diapositive
Slide 2 - Diapositive
Slide 3 - Diapositive
Slide 4 - Diapositive
If the loudness is 20 dB and the frequency is 50 Hz can you hear the sound?
A
Yes
B
No
Slide 5 - 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 6 - Quiz
Slide 7 - Diapositive
Using the sound meter app measure 5 different sounds. Write them down and there loudness in decibel
Slide 8 - 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 2000 people cheer?
Slide 9 - 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?
