
fenomene mecanice 6
Authored by dragostina radulescu
Physics
6th - 7th Grade
Used 7+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Intre marimile fizice : volum ,masa si densitate ale unui corp, exista relatia
m= V/ p
m = p /V
m = p x V
p = V / m
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Masa unui metru cub de apa este :
1000 kg
1 kg
100 kg
0,01 t
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Marimea fizica care masoara taria unei interactiuni este :
masa
forta
greutatea
viteza
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Greutatea corpului este :
egala cu g
egala cu masa corpului
direct proportionala cu masa corpului
forta de atractie exercitata de Pamant ,asupra acelui corp
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Forta elastica care apare in corpurile deformate elastic si se opune fortei deformatoare
are aceeasi directie ,dar sens opus fortei deformatoare
are aceeasi directie si acelasi sens cu forta deformatoare
forta elastica are sensul indreptat de sus in jos
forta elastica nu depinde de directia si sensul in care actioneaza
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Forta elastica se poate calcula utilizand urmatoarea relatie matematica :
Fe = k / Dl
Fe = k . Dl
Fe = Dl / k
Fe = k + Dl
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Intensitatea campului gravitational (acceleratia gravitationala) se noteaza cu g si se calculeaza cu relatia :
g = G/ m
G =m / g
g = m x G
g = G+ m
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