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Heli

Authored by Kaidi Rannaäär

Physics

8th Grade

Used 5+ times

Heli
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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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