
Fizica plutirii
Quiz
•
Physics
•
7th Grade
•
Practice Problem
•
Medium
Iriza Cristina
Used 1+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce forță face ca un obiect să plutească într-un lichid?
Gravitația
Frecarea
Forța de împingere
Forța magnetică
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un obiect plutește în apă dacă:
Densitatea lui este mai mică decât a apei
Este mai greu decât apa
Este plat
Are volum mare
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Principiul care explică flotabilitatea este:
Principiul lui Pascal
Principiul lui Bernoulli
Principiul lui Arhimede
Legea lui Ohm
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce se întâmplă cu forța de împingere dacă un obiect este complet scufundat, dar nu își schimbă volumul?
Scade
Crește
Rămâne constantă
Dispare
5.
OPEN ENDED QUESTION
3 mins • 1 pt
Gheața plutește în apă pentru că are densitate mai mare.
Evaluate responses using AI:
OFF
6.
OPEN ENDED QUESTION
3 mins • 1 pt
Forța de împingere acționează în sus, opus gravitației.
Evaluate responses using AI:
OFF
7.
OPEN ENDED QUESTION
3 mins • 1 pt
Dacă un obiect plutește, înseamnă că nu are greutate.
Evaluate responses using AI:
OFF
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