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Fizica > (1) Descrierea miscarii > Flashcards

(1) Descrierea miscarii Flashcards

1
Q

△r

A

Variatia pozitiei

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2
Q

Ce este traiectoria miscarii?

A

Este curba descrisa in timpul miscarii

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3
Q

r1, r2

A

Vectori de pozitie

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4
Q

△t

A

Variatia timpului

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5
Q

t1, t2

A

Momentele miscarii

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6
Q

Intervalul de timp necesar miscarii

A

△t = t2 - t1

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7
Q

Viteza medie a miscarii reprezinta

A

Marimea vectoriala exprimata ca raport intre vectorul deplasare si intervalul de timp necesar acestei deplasari

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8
Q

Viteza momentana este egala cu

A

Limita vitezei medii cand intervalul de timp tinde spre 0

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9
Q

Care este pozitia vectorului viteza fata de traiectorie

A

Tangent la traiectorie in punctul de reprezentare si sensul acelasi cu cel de parcurgere al traiectoriei

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10
Q

Acceleratia medie reprezinta raportul dintre

A

Vectorul viteza si intervalul de timp

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11
Q

Acceleratia momentana este egala cu

A

Limita vectorului viteza si intervalul de timp care tinde spre 0

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Fizica (4 decks)

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