
legile frecării
Authored by Anisia Alexandrescu
Physics
9th Grade
Used 1+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
FORȚA DE FRECARE LA ALUNCEARE NU DEPINDE DE
Masa corpului
aria suprafeței de contact
coeficientul de frecare
gradul de prelucrare al supraf de contact
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
FORȚA DE FRECARE LA ALUNECARE DINTRE UN CORP ȘI PLANUL PE CARE SE MIȘCĂ ESTE DEPENDENTA DE
FORȚA DE TRACȚIUNE CE ACTIONEAZA ASUPRA CORPULUI
SUORAFAȚA DE CONTACT DINTRE CORP SI PLAN
VITEZA CORPULUI
gradul de prelucrare al supraf de contact
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O CUTIE GOALA DE LEMN ESTE TRASA PE PODEA. DACA SE UMPLE CUTIA COEFICIENTUL DE FRECARE DINTRE CUTIE SI PODEA:
creste
scade
ramane acelasi
creste si apoi scade
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
IN CARE DINTRE SITUATII FRECAREA ESTE UN IMPEDIMENT
MERS
PATINAT
MUTAT
DE DULAP
ZBURAT
SCRIS
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
UN PARALELIPIPED DIN LEMN ARE FEȚELE PRELUCRATE DIFERIT. FRECAREA ESTE MAI MARE PE FAȚA:
cea mai bine șlefuită
cea șlefuită intermediar
Cea mai rugoasă
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