
Máquinas Simples - 7º Ano
Authored by Armando Vieira
Science, Physics
7th Grade
Used 20+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Uma máquina simples é capaz de:
Aumentar, diminuir ou alterar a direção e sentido de forças
Transformar energia térmica em energia de movimento
Somente diminuir forças
Somente mudar a direção de forças
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Assinale a alternativa que contém somente máquinas simples
Alavanca, polia e motor a combustão interna
Motor à vapor, plano inclinado e engrenagem
Engrenagem, polia e alavanca
Motor a combustão interna, motor a vapor e máquinas frigoríficas
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A imagem a seguir retrata que tipo de máquina simples?
Alavanca
Polia
Plano Inclinado
Engrenagem
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Para manter a alavanca da imagem equilibrada, qual deverá ser o valor da força F no lado esquerdo da alavanca?
20 N
10 N
40 N
120 N
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Qual é o nome da máquina simples representada pela imagem?
Alavanca
Polia
Plano Inclinado
Engrenagem
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Se o peso do objeto preso à polia 2 for de 500 N, qual deverá ser a força aplicada na corda para equilibrar esse objeto?
50 N
250 N
500 N
1000 N
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Qual o nome da máquina simples representada pela imagem?
Alavanca
Polia
Plano Inclinado
Engrenagem
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