
Metali
Authored by stefica debogovic
Physical Ed
7th Grade
Used 53+ times

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21 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Svi su metali uglavnom na sobnoj temperaturi:
u čvrstom stanju
dobri vodiči električne struje
dobri vodiči topline
u plinovitom stanju
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Metali su u prirodi rijetko samorodni, ne nalaze se u čistom stanju, već se dobiju preradom iz ______________ .
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Prirodne smjese metala i nemetala nazivaju se ____________ .
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Radi poboljšanja svojstava, metali se u rastaljenom stanju miješaju s drugim metalima ili nemetalima pa tako nastaju
legure ili slitine
kovine
rude
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Legure ili slitine su:
čelik
mjed
bronca
bakar
legura za meko lemljenje
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Čelik je
smjesa bakra i kositra
željezo sa smanjenom količinom ugljika ispod 2 %
smjesa bakra i cinka
smjesa olova i kositra
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bronca je
smjesa bakra i kositra
željezo sa smanjenom količinom ugljika ispod 2 %
smjesa bakra i cinka
smjesa olova i kositra
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