Statica fluidelor

Quiz
•
Physics
•
7th Grade
•
Hard

ELISABETA DRĂGUȘ
Used 12+ times
FREE Resource
9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
I.Alege raspunsurile pe care le consideri corecte
1.Un corp pluteste la suprafata unui lichid deoarece forta arhimedica este egala cu greutatea sa .
2.Un corp se scufunda intr-un lichid deoarece asupra lui nu actioneaza forta arhimedica.
1.A-A;
2.A-F.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
II.Asociaza elementele din coloana A,care spun ce se intampla cu un corp scufundat intr-un lichid ,litera din coloana B care se refera la conditiile ce determina respectivul comportament.
A
1.Pluteste in orice loc
2.Se scufunda
3.Se ridica
B
a.FA <G
c.FA G
d.FA G
1c; 2a; 2d;
1a;2a; 3b;
1d; 2b; 3a
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
III. Alege afirmatia corecta despre presiunea hidrostatica :
a. Presiunea hidrostatica la un anumit nivel este aceeasi in toate directiile.
b. Presiunea hidristatica la un anumit nivel scade cu cresterea adancimii.
c. Presiunea hidrostatica nu depinde de densitatea lichidului.
a
b
c
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
IV. Competeaza spatiile libere din urmatorul text :
Legea lui Pascal afirma ca,variatia de presiune produsa intr-un punct ......................................aflat in echilibru se transmite ............................in orice punct din volumul lichidului .
5.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
V.Legea lui Pascal are numeroase aplicatii practice .
1. Care sunt aplicatiile in mecanica ?
6.
OPEN ENDED QUESTION
3 mins • 1 pt
VI.Descrieti principiul de functionare al franei hidraulice .
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7.
FILL IN THE BLANK QUESTION
10 sec • 1 pt
VII.Numiti unitatea de masura a presiunii in Sistemul International.
8.
OPEN ENDED QUESTION
10 mins • 1 pt
VII.Pentru determinarea densitatii saramurii,in gospodarie se foloseste un ou cu masa m=52,5 g si volumul V=50 l .Cand oul se introduce in saramura,10 % de volumul sau se afla deasupra apei.Care este densitatea apei ?
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9.
OPEN ENDED QUESTION
15 mins • 1 pt
IX. Alcatuiti un eseu cu tema :Aplicatiile practice ale legii lui Arhimede precizand urmatoarele :
-definirea legii ;
-cazurile particulare de actiune a fortei arhimedice ;
-aplicatii navale ;
-aplicatii medicale ;
-aplicatii in industria alimentara ;
-aplicatii in meteorologie si navigatie aeriana .
Evaluate responses using AI:
OFF
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