

Optica: Imagini și Refracție
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Hard
FLORINA ANDREI
FREE Resource
Student preview

10 questions
Show all answers
1.
FLASHCARD QUESTION
Front
Ce este lumina?
Back
O formă de energie care ne permite să vedem.
2.
FLASHCARD QUESTION
Front
Cum se deplasează lumina?
Back
În linii drepte.
3.
FLASHCARD QUESTION
Front
Ce se întâmplă când lumina lovește o suprafață reflectorizantă?
Back
Se reflectă, iar unghiul de incidență este egal cu unghiul de reflexie.
4.
FLASHCARD QUESTION
Front
Refracția
Back
Fenomenul prin care undele luminoase își schimbă direcția la interfața dintre două medii.
5.
FLASHCARD QUESTION
Front
Care este diferența dintre o imagine reală și o imagine virtuală?
Back
O imagine reală poate fi proiectată pe un ecran, în timp ce o imagine virtuală nu.
6.
FLASHCARD QUESTION
Front
Ce se întâmplă cu razele de lumină paralele care trec printr-o lentilă convexă?
Back
Converg într-un singur punct focal.
7.
FLASHCARD QUESTION
Front
Cum poate o lupă (lentilă convexă) să concentreze razele soarelui într-un punct fierbinte?
Back
Prin focalizarea razelor paralele într-un punct focal.
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