Unde mecanice. Sunetul
Authored by Victor Ilaş
Physics
7th Grade
Used 12+ times
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10 questions
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1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Dacă forța care determină revenirea sistemului în poziția de echilibru este o forță ... atunci mișcarea sistemului va fi periodică și va avea loc în jurul poziției de echilibru,
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Distanța la care se află centrul de greutate al sistemului oscilant față de poziția de echilibru se numește ...
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Câte mărimi caracteristice ale undei
există?
2
4
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Ce este lungimea de undă?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Urechea umană percepe, în general sunete cuprinse în intervalul de:
40Hz - 100Hz
20Hz - 10kHz
20Hz - 20kHz
10hz-10kHz
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Unda reprezintă o formă de transfer de ... oscilatorie fară transfer de ...
energie, substanță
substanță, energie
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sunetele se pot auzi mai tare sau mai încet, prin modificarea amplitudinii de oscilație a mediului respectiv.
Fals
Adevărat
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