Densidade
Quiz
•
Chemistry, Science
•
7th Grade
•
Medium
Alexandra Pereira
Used 63+ times
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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A densidade do cobre, a 20 ºC, é 8,9 g/cm3. Isto significa que, a 20 ºC, ...
...1 g de cobre ocupa um volume de 8,9 cm3.
...1 cm3 de cobre tem de massa 8,9 g.
...8,9 cm3 de cobre tem de massa 8,9 g.
...nenhuma das anteriores está correta.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Um objeto feito de ouro maciço tem 500 g de massa e 25 cm³ de volume. Determine a densidade do objeto em g/cm³, e a massa volúmica do ouro em kg/m³.
20 kg/m³ ; 20.000 kg/m³
40 g/cm³ ; 40.000 kg/m³
85 g/cm³ ; 25.000 kg/m³
20 g/cm³ ; 20.000 kg/m³
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a massa de 50 cm³ de um líquido cuja densidade é igual a 2,0 g/cm³?
100 kg
100 g
100 g/ m³
25 g
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se a densidade do óleo é 0,92g/cm³, a massa contida em 2 litros de óleo é...
1,84 kg
1840 kg
18,04 kg
1,84 g
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Qual dos seguintes objetos é mais denso, admitindo que todos se encontram mergulhados em água?
amarelo
alaranjado
verde
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se a densidade de uma peça maciça de alumínio de 10 g é de 3,7 g/ cm3 , que densidade terá uma barra de alumínio de 5 kg, também maciça?
3,7 g / cm3
não é possível saber
maior que 3,7 g/ cm3
menor que 3,7 g/cm3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcula a densidade de um objeto com uma massa de 12 g e volume 4 cm3.
2 g/cm3.
3 g/cm3.
4 g/cm3.
5 g/cm3.
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