Heli
Authored by Kaidi Rannaäär
Physics
8th Grade
Used 4+ times
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24 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Õhus levib heli .....
pikilainena
ristlainena
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Helivaljuse ühik on ......
herts
detsibell
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Infraheli sagedus on ........
väiksem kui 16 Hz
suurem kui 20 kHz
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Heli kõrgus sõltub ......
võnkesagedusest
võnke amplituudist
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Heli kiirus ............ keskkonnast.
sõltub
ei sõltu
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Kõige nõrgem heli, mida inimene veel kuuleb .......
0 dB
10 dB
16 db
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Tõkkelt peegeldunud heli, mis on kuuldav alghelist lahus on ......
müra
hääl
kaja
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