
7. klass-Helide maailma
Arts
7th Grade
Used 38+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Mis on infraheli?
Alla 16 Hz võnkuv madal heli
Üle 20 000 Hz võnkuv kõrge heli
Üle 130 dB tugev heli
Alla 16 dB kõlav heli
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Mis sagedusel võngub a-noot?
140 Hz
440 Hz
89 Hz
679 Hz
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Mis on dünaamika?
Helitugevus ja selle muutumine
Helide kooskõla
Tants
Heliteose esitamise kiirus
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Mis on helitugevuse tähis?
dB
Hz
cm
dl
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suurim helitugevus, mida inimene talub, ilma, et tema tervist kahjustataks?
34 000 dB
130 dB
24 dB
12 000 Hz
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kes kuuleb ultrahelisid ehk 20 000 Hz kõrgemaid helisid?
Rebased, sisalikud
Kaelkirjakud, kärbsed
Elevandid, ninasarvikud
Koerad, delfiinid, nahkhiired
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Mis on kammertoon?
Muusika instrument
Akord
Helihark
Keelpill
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