Corpurile care produc și emit lumină se numesc

Fenomene optice

Quiz
•
Physics
•
6th Grade
•
Hard
PINTEA MARIA
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
surse de lumina
corpuri luminate
soarele
becul
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Becul electric este o sursă ………………… de lumină, deoarece el emite lumină doar când este pus înfuncţiune de către om.
naturala
artificiala
normala si artificiala
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Corpurile translucide permit trecerea luminii parţial şi observarea neclară a obiectelor din spatele lor
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Lumina se propaga in linie
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
In care dintre imagini este reprezentata o eclipsa de soare?
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A II-a lege a reflexiei este:
7.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Ce distanță parcurge lumina în aer în 2 minute? Se consideră viteza luminii
300 000 km/s?
600.000km
36.000.000km
150.000km
8.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
In care dintre imagini este eclipsa partiala de luna?
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