Lucrul,puterea si energia
Quiz
•
Physics
•
2nd Grade
•
Medium
Roman Rodica
Used 43+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Energia de mișcare a corpului se numește energie potențială
Adevărat
Fals
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Forţa care menţine starea de mișcare a corpului se numește ...
Forță de schimbare
Forță de tracțiune
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Energia mecanică a unui sistem izolat de corpuri
se modifică
rămâne constantă
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Energia pe care o posedă corpul datorită poziţiei sale faţă de pământ se numește
Energie a pământului
Energie potențială
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dacă forța ce acționează asupra unui corp creste ,lucrul mecanic efectuat de ea la deplasarea pe aceiaș distanță...
se mărește
se micșorează
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Valoarea energiei cinetice a corpului este direct proporţională cu
masa
timpul
temperatura
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La ridicarea ascensorului energia sa potenţială se
micșorează
mărește
nu se schimbă
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