
Prova - Dilatação dos Sólidos
Authored by Ronaldo Avelino
Physics
2nd Grade

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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que é dilatação térmica?
Aumento de massa de um sólido
Aumento de tamanho de um sólido devido ao calor
Mudança de cor de um sólido
Diminuição de temperatura
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual dos fatores abaixo NÃO afeta a dilatação dos sólidos?
Tipo de material
Temperatura
Cor do sólido
Comprimento inicial
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A dilatação linear de um sólido pode ser calculada pela fórmula:
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A dilatação superficial é calculada por qual equação?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A dilatação volumétrica é calculada por:
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Por que as pontes possuem juntas de dilatação?
Para evitar que a ponte fique escorregadia
Para permitir a expansão e contração dos materiais
Para decorar a ponte
Para facilitar a pintura
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se um material tem alto coeficiente de dilatação, ele:
Dilata pouco quando aquecido
Não dilata
Dilata muito quando aquecido
Contrai muito quando aquecido
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