Valovi i svjetlost

Quiz
•
Physics, Science
•
8th Grade
•
Hard
Ana Canjuga
Used 8+ times
FREE Resource
20 questions
Show all answers
1.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
_________________ val je val kod kojeg se čestice sredstva gibaju okomito na smjer širenja vala.
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Kako zovemo mjesto iz kojeg se val počinje širiti?
Izvor vala
Valna fronta
Valna zraka
Početak vala
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Broj titraja vala u jednoj sekundi nazivamo:
amplituda
period
frekvencija
valna duljina
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Zvuk frekvencije veće od 20 000 Hz nazivamo:
infrazvuk
ultrazvuk
nije moguć takav zvuk.
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Što je prikazano crvenim strelicama na slici?
Valna zraka
Valna fronta
Izvor vala
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Brzina vala jednaka je:
količniku frekvencije i perioda
umnošku valne duljine i frekvencije
umnošku perioda i valne duljine
količniku valne duljine i frekvencije
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Kakva slika je nastala na priloženom primjeru?
Umanjena, uspravna, realna
umanjena, obrnuta, virtualna
uvećana, obrnuta, realna
umanjena, obrnuta, realna
uvećana, uspravna, realna
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