Elektromagnetski valovi
Quiz
•
Physics
•
6th - 8th Grade
•
Hard
Sandra Zupanovic
Used 4+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kolika je brzina elektromagnetnih valova u vakuumu?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Koje zračenje ima frekvencije manje od frekvencije vidljive svjetlosti?
ultraljubičasto zračenje
infracrveno zračenje
rentgensko zračenje
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ako iz spektra bijele svjetlosti izdvojimo frekvenciju crvene svjetlosti, koju boju svjetlosti daju preostale frekvencije zajedno?
crvenu
plavu
zelenu
ljubičastu
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Što je izvor rendgenskog zračenja?
antena
atomska jezgra
atom
usporeni elektroni
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Mikrovalovi pogodni su za grijanje hrane zato što ______________ .
zrače toplinu
imaju frekvenciju rezonantnu frekvenciji molekula vode u hrani
imaju frekvenciju puno veću od frekvencije molekula vode
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Elektromagnetskim valovima nije potrebno sredstvo za njihovo širenje.
točno
netočno
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Elektromagnetski valovi su
transverzalni valovi
longitudinalni valovi
logaritamski valovi
eksponencijalni valovi
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