
Evaluare sumativă
Quiz
•
Physics
•
7th Grade
•
Practice Problem
•
Hard
dumitru ieseanu
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Urmărind formarea umbrei și a penumbrei unui obiect se variază distanța dintre un bec folosit ca sursă și un perete, utilizat ca ecran. Când este penumbra mai mare?
Penumbra este mai mare atunci când obiectul este mai aproape de sursă.
Penumbra este mai mare atunci când obiectul este mai departe de sursă.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Luna este un corp luminat.
Adevărat
Fals
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Stratul de apă la o grosime de câteva sute de metri este ____
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Transparenţa unor corpuri depinde de
grosimea lui
lățimea lui
înălțimea lui
lungimea lui
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fasciculul ca se se îngustă pe măsura ce lumina se propaga tot mai departe de sursa de lumina se numește
convengert
divergent
congruient
convex
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Umbra unei umbrele deschise are aceeași formă la diferite ore ale zilei?
Nu
Da
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Meteorii ,stelele sunt surse...
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Într-un mediu omogen, lumina se propagă
rectiliniu
concomitent
neuniform
continu
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