Provjera znanja
Quiz
•
Science
•
9th Grade
•
Practice Problem
•
Hard
Ivana Gregurec
Used 5+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ukoliko se tijela nakon sudara gibaju zajedno, sudar je:
elastičan
neelastičan
nije sudar
necentralan
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Na slici je prikazana posuda s vodom. Kako se odnose hidrostatski tlakovi u pojedinim točkama posude A, B i C?
pA=pB=pc
pA=pB<pc
pA=pB>pc
pA<pB<pc
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Na slici je prikazana hidraulička preša. S koje strane preše tj. kojom silom moramo djelovati ako želimo podići teret velike mase?
F1
F2
svejedno je
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Olovna i aluminijska homogena kugla obješene su na vagu jednakih krakova kao na slici. Pritom je gustoća olova veća od gustoće aluminija. Ako cijeli sustav smjestimo pod stakleno zvono iz kojeg isišemo zrak što će se dogoditi?
Preteže aluminijska kugla.
Preteže olovna kugla.
Vaga će ostati u ravnoteži.
Ne može se odgovoriti jer ima premalo podataka.
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Voda protječe kroz cijev koja se na jednom kraju sužuje. Na koji način se odnose protok i brzina strujanja vode?
Protok i brzina strujanja su svugdje jednaki.
Protok i brzina strujanja su veći u užem dijelu cijevi.
Protok i brzina strujanja su veći u širem dijelu cijevi.
Protok je svugdje jednak, a brzina strujanja je veća u užem dijelu cijevi.
Protok je svugdje jednak, a brzina strujanja je veća u širem dijelu cijevi.
6.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Količina vode koja prostruji određenom cijevi u jedinici vremena nazivamo ________________.
7.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Tlak koji nastaje kao posljedica težine tekućine nazivamo ________________ tlak.
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