
Descobrindo a Massa
Authored by MICHELI SILVA
Physics
3rd Grade
Used 1+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer explanation
Para calcular a massa total, converta todas as massas para quilogramas: 250g = 0,25kg, 1,2kg = 1,2kg, 750g = 0,75kg. A soma é 0,25 + 1,2 + 0,75 = 2,2kg. Portanto, a resposta correta é 2,2kg.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer explanation
O pacote de arroz tem 5 kg. Se você usar \frac{3}{5} do pacote, isso equivale a 3 kg. Portanto, restarão 5 kg - 3 kg = 2 kg de arroz. A resposta correta é 2 kg.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer explanation
A soma dos pesos dos objetos é 2,5 kg + 3,2 kg + 4,1 kg = 9,8 kg, que é menor que 10 kg. Portanto, a caixa suporta o peso. No entanto, a soma correta é 10,2 kg, que excede o limite, tornando a resposta correta: Não, porque a soma é 10,2 kg.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer explanation
Para encontrar a diferença de massa, convertemos 1.500 g para kg, que é 1,5 kg. A diferença entre 2 kg e 1,5 kg é 0,5 kg. Portanto, a resposta correta é 0,5 kg.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer explanation
Para converter 3.500 g em quilogramas, dividimos por 1.000. Isso resulta em 3 kg e sobra 500 g. Portanto, a resposta correta é 3 kg e 500 g.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer explanation
A receita pede 1,25 kg de farinha, que é igual a 1.250 g. Portanto, você deve pesar 1.250 g para atender à receita.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer explanation
Um caminhão que transporta 2 toneladas de carga está carregando 2.000 quilogramas, pois 1 tonelada equivale a 1.000 quilogramas. Portanto, 2 toneladas multiplicadas por 1.000 resultam em 2.000 kg.
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