
Hullámok
Quiz
•
Physics
•
8th Grade
•
Practice Problem
•
Medium
petra biro
Used 2+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mennyi a hang terjedési sebessége levegőben?
340 m/s
340 km/s
300 m/s
300 000 m/s
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Melyik a hamis állítás?
A hang is egy hullám.
Hullám bármely halmazállapotú anyagban létrejöhet.
A hang vákuumban is terjed.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Igaz vagy hamis?
Új anyagba lépéskor nem változik a hang sebessége.
igaz
hamis
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hogyan nevezzük a 20 Hz-nél kisebb frekvenciájú hangot?
ultrahang
infrahang
5.
MULTIPLE SELECT QUESTION
45 sec • 2 pts
Mely állatok használnak ultrahangot?
denevér
bálna
delfin
elefánt
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Melyik mennyiség mértékegysége a decibel?
frekvencia
hangerősség
hullámhossz
7.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Hogyan jelöljük a decibelt?
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