Notação científica
Quiz
•
Mathematics
•
12th Grade
•
Practice Problem
•
Medium
adrien bento
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7 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Considera os seguintes números:
a=1,3\times10^{23}\ \ ;\ \ b=1,5\times10^{22}
a=1,3×1023
; b=1,5×1022
c=1,1\times10^{23}\ \ \ ;\ \ \ \ d=1,9\times10^{-25}
c=1,1×1023
; d=1,9×10−25
Qual destes números é o maior?
A
B
C
D
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Uma célula do sangue tem aproximadamente 7,8 x 10-6 metros de diâmetro. Isso equivale a:
0,000 007 8 metros
0,000 078 metros
7 800 000 metros
780 000 metros
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A notação científica tem sempre uma potência de base..
20
32
10
21
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A distância entre o Sol e a Terra é de 149 600 000 km. Como se escreve este número em notação científica?
1,5×108
1,496×10-8
1,496×108
0,1496×109
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual q ordem de grandeza do número 1,25\times10^7
1,25×107 ?
10-7
7
107
10
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
O número 0,000357 pode ser escrito de várias formas, mas apenas uma está na forma de notação científica. Qual?
357×10-6
35,7×10-5
3,57×10-4
0,357×10-3
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Qual dos itens registados na tabela tem maior massa?
Átomo de hidrogénio
Molécula de água
Célula humana
Grão de areia
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