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Unde Sonore.Unde Seismice.
10 Questions
|
By Angelareulet | Updated: May 10, 2020
| Attempts: 279
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1.
Notele muzicale corespund diferitelor frecvențe.
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Fals
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About This Quiz
Atenție maximă.
2.
What first name or nickname would you like us to use?
You may optionally provide this to label your report, leaderboard, or certificate.
2.
Un tsunami reprezintă o undă de adâncime, care transportă o energie foarte mare eliberată de un cutremur, cu viteze de propagare foarte mari.
Adevărat
Fals
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3.
Undele seismice se produc la alunecarea plăcilor tectonice.
Adevărat
Fals
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4.
Există două categorii de unde seismice – de adâncime și de suprafață.
Adevărat
Fals
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5.
Ultrasunete.
ν < 16 Hz
16 Hz ≤ ν ≤ 20 kHz
ν > 20 kHz
Submit
6.
Sunete
ν < 16 Hz
16 Hz ≤ ν ≤ 20 kHz
ν > 20 kHz
Submit
7.
Sunetul se propagă
Prin vid;
Numai într-un mediu elastic.
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8.
Un sunet este cu atât mai ascuțit cu cât:
Are frecvența mai mică;
Are frecvența mai mare.
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9.
Ecoul poate fi auzit numai dacă distanța până la obiect depășește 17 m.
Adevărat
Fals
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10.
Infrasunet
ν < 16 Hz
16 Hz ≤ ν ≤ 20 kHz
ν > 20 kHz
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Notele muzicale corespund diferitelor frecvențe.
Un tsunami reprezintă o undă de adâncime, care transportă o...
Undele seismice se produc la alunecarea plăcilor tectonice.
Există două categorii de unde seismice – de adâncime și...
Ultrasunete.
Sunete
Sunetul se propagă
Un sunet este cu atât mai ascuțit cu cât:
Ecoul poate fi auzit numai dacă distanța până la obiect...
Infrasunet
X
OK
X
OK
Cancel
X
OK
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