Helide maailm.
Quiz
•
Arts
•
7th Grade
•
Practice Problem
•
Medium
Sirle Sikk
Used 58+ times
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9 questions
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1.
OPEN ENDED QUESTION
30 sec • Ungraded
Heli tekitamiseks on tarvis
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2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ühtlaste helilainete puhul kuuleme
puhast heli
kriuksatusi
raginat
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Heli omadused on
kõrgus
tugevus
kestus
tämber
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Kammertoon on
helihark, millega saame häält anda.
eriline kõrgus, mida suudab ainult üks vahend tekitada.
vahend, millega määratakse 1.oktavi "a" noot, mille võnkesagedus on 440 hZ.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Heli ei saa tekkida
väga väikeses ruumis.
pimedas koopas.
vaakumis e. keskkonnas, kus pole õhku.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Õhuvõngete sagedust mõõdetakse
detsibellides (dB)
grammides (g)
hertsides (Hz)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Valulävi on
väikseim helitugevus, mida inimene kuuleb.
see, kui heli põrkub mingi teise pinna vastu.
suurim helitugevus, mida inimene talub, ilma, et see tema tervist kahjustaks (130 dB).
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