formules Flashcards

(suite du chap-1)

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1
Q

Calculer la fréquence

A

f (Hz) = 1 / T (seconde)

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2
Q

Qu’es-ce que le T ?

A

La période (en s)

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3
Q

Calculer la période

A

T = 1 / f

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4
Q

Calculer l’intensité sonore (I)

A

I = P / S

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5
Q

Calculer la période

A

p = I x S

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6
Q

Qu’es-ce que “I”

A

Intensité sonore (watts par mètre carré) = W.m-2

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7
Q

Qu’es-ce que “P”

A

Puissance sonore (w)

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8
Q

Qu’es-ce que “S”

A

Surface (m2)

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9
Q

Calculer le niveau sonore

A

L = 10 log (I / Io)

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10
Q

Qu’es-ce que “L”

A

Niveau sonore (dB)

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11
Q

Qu’es-ce que “Io”

A

Intensité sonore de référence (1.10-12W.m-2)

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