Forces i pressions
Quiz
•
Physics
•
8th - 12th Grade
•
Practice Problem
•
Medium
Alba Payes
Used 13+ times
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16 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Quina és la fòrmula de la pressió?
p = S/F
p = s*F
p = F/S
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
En quines unitats expressem la pressió (al Sistema Internacional)?
N
kg
m/s2
Pa
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Quina pressió exerceix un clau, la punta del qual té una superfície 0,015 mm², quan fa una força de 3 N contra una peça de fusta?
200.000.000 Pa
2.000.000 Pa
200 Pa
20.000 Pa
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Què mesura un dinamòmetre?
La pressió
La temperatura
La força
La massa
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Quines de les forces següents actuen sempre a distància?
La força pes
La força d’un imant.
La tensió
La força muscular que estira un objecte
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Amb quina unitat es mesura la força?
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Què vol dir que les forces siguin magnituds vectorials?
Que es mesuren en Pascals
Que tenen valor, sentit i direcció
Que tenen valor i sentit.
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