[Physik] Formeln Wellen & Schwingungen

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8 Terms

1

Wellen

Eine Welle ist eine rĂ€umliche und zeitliche ZustandsĂ€nderung physikalischer GrĂ¶ĂŸen, die meist nach bestimmten periodischen GesetzmĂ€ĂŸigkeiten erfolgt.

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2

Schwingungen

Eine Schwingung liegt vor, wenn sich eine physikalische ZustandsgrĂ¶ĂŸe periodisch mit der Zeit um einen Mittelwert Ă€ndert.

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3

Amplitude A

Die Amplitude ist die maximale Auslenkung einer harmonischen Schwingung aus der Lage des arithmetischen Mittelwert.

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4

Frequenz f

Die Frequenz beschreibt, wie viele Schwingungen ein Vorgang pro Sekunde hat. Dabei hÀngt diese von der Periodendauer ab. Die Einheit ist 1 Hz = 1/s.

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5

WellenlÀnge

Die WellenlĂ€nge Lambda einer sich gleichmĂ€ĂŸig ausbreitenden Welle, ist der minimale Abstand von zwei Punkten in einer Phase. In dieser Phase haben die Punkte die gleiche Amplitude und Bewegungsrichtung.

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6

FederhÀrte D

Die FederhÀrte beschreibt das VerhÀltnis der auf eine Feder wirkenden Kraft und der dadurch bedingten LÀngenÀnderung der Feder.

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7

Formel Federpendel

T = 2π√(m/D)

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8

Formel Fadenpendel

T = 2π√(L/g)

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