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Quiz
•
Physics
•
12th Grade
•
Practice Problem
•
Hard
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25 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Um bloco de massa igual a 7 Kg é levantado a uma altura de 10 m. Calcule o trabalho realizado pela força peso sabendo que a gravidade no local é 10m/s2.
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Calcular o trabalho realizado por uma força de 28 N que desloca um objeto numa distância de 2 m na mesma direção e sentido da força.
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Uma mala é puxada sobre um plano horizontal por uma força de 50 N. Essa força forma ângulo de 37o com o deslocamento do corpo, que é de 4 m. Calcule o trabalho da força. Dado: cos 37o = 0,8.
100 J
160 J
140 J.
150 J.
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Calcule o trabalho que a força F realiza, no deslocamento de 0 a 6 m.
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A unidade de Trabalho no S.I é:
m/s²
Newton (N)
Newton x secunda (Nxs)
Joule
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quando aplicamos uma força em um objeto e provocamos um deslocamento, estamos realizando...
esforço
potência
energia'
traballho
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Qual o trablho realizado por uma força de 5N para mover um objeto em 2 metros?
10 newtons
7 newtons
10 joules
7 joules
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