
Oscilatii si Unde Quiz
Authored by Roman Rodica
Physics
3rd Grade

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care este definitia oscilatiilor armonice?
Miscari de-a lungul unei traiectorii cu amplitudine variabila
Miscari lente fara o frecventa constanta
Miscari aleatorii pe o traiectorie nedefinita
Miscari periodice de-a lungul unei traiectorii, caracterizate de o frecventa constanta si o amplitudine constanta.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce reprezinta amplitudinea oscilatiilor?
Frecventa de oscilatie a unui sistem
Energia cinetica a sistemului oscilant
Amplitudinea medie a oscilatiilor
Valoarea maxima a deviatiei de la pozitia de echilibru a unui sistem oscilant.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cum se calculeaza frecventa oscilatiilor?
f = 1 / T
f = T * 1
f = T - 1
f = T / 1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce masoara viteza undelor?
in litri pe minut (l/min)
in kilometri pe ora (km/h)
in centimetri pe secunda (cm/s)
in metri pe secunda (m/s)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce este interferenta undelor?
Interferenta undelor este un proces care implica doar o unda
Interferenta undelor este fenomenul fizic in care doua sau mai multe unde se intalnesc si se combina pentru a forma o unda rezultanta.
Interferenta undelor este un fenomen care nu poate fi observat in natura
Interferenta undelor este un concept matematic fara aplicabilitate practica
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cum se calculeaza perioada unei unde?
Perioada = Frecventa
Perioada = Frecventa ^ 2
Perioada = 2 * Frecventa
Perioada = 1 / Frecventa
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce este refractia undelor?
Refractia undelor este fenomenul prin care undele se propagă în același mediu cu o viteză constantă.
Refractia undelor este fenomenul prin care undele se schimbă direcția de propagare atunci când trec dintr-un mediu în altul cu o viteză diferită.
Refractia undelor este fenomenul prin care undele se opresc complet atunci când trec dintr-un mediu în altul.
Refractia undelor este fenomenul prin care undele se propagă doar în medii transparente.
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