Dźwięki kl.8

Quiz
•
Physics
•
8th Grade
•
Medium
andrzejszulgo@wp.pl andrzejszulgo@wp.pl
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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Fala akustyczna słyszalna przez człowieka to fala o częstotliwości :
20 kHz
20 Hz do 20 kHz
2 Hz do 20 Hz
do 20 Khz
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Fale akustyczne o częstotliwości poniżej 20 Hz to
ultradźwięki
infradźwięki
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Dźwięki powyżej 20 000 Hz to
ultradźwięki
infradźwięki
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Jeżeli usłyszymy odgłos burzy po 3 sekundach od zauważenia błysku, to znaczy, że burza jest oddalona od nas o około:
3 km
2 km
1 km
300 m
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
prędkość rozchodzenia się dźwięku w powietrzu wynosi
3000 km/h
300 000 km/s
340 m/s
340 km/h
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Dźwięk wysoki obrazuje wykres
niebieski
czerwony
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Dźwięk cichy i niski obrazuje wykres
1
2
3
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