
Sila trenja
Authored by Kristina Ferenčić
Physics
7th Grade
Used 173+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Kako se zove sila koja sprječava klizanje tijela?
sila teža
sila trenja
težina
elastična sila
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
O čemu ovisi sila trenja?
o težini tijela i veličini dodirnih ploha
o težini tijela i vrsti dodirnih ploha
o veličini i vrsti dodirnih ploha
3.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Koeficijent trenja označavamo slovom
Ftr
g
μ
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Ako se pritisna sila poveća tri puta, onda će se sila trenja
smanjiti tri puta
povećati tri puta
neće se promijeniti
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
U kojem od navedenih sportova je trenje korisno?
brzo klizanje na ledu
gimnastika
skijanje
plivanje
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
U kojem primjeru je trenje štetno?
hodanje
zaustavljanje automobila
guranje tereta po podlozi
zabijanje čavla u zid
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
U kakvoj su vezi vučna sila i sila trenja ako se tijelo giba jednoliko?
jednake su po iznosu i usmjerenju
jednake su po usmjerenju, ali suprotne po iznosu
jednake su po iznosu, suprotno usmjerene
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