
南一國中自然7上ch1-跨科
Quiz
•
Science
•
7th Grade
•
Practice Problem
•
Hard
南一 自然
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
細胞為生物的基本構造,細胞內所含的主要物質為水與含有碳、氫、氧、氮等原子構成的物質,而水的組成有氫原子及氧原子。由上述推斷下列物質的大小順序何者正確?
細胞>水>氫原子
水>氫原子>細胞
氫原子>水>細胞
細胞>氫原子>水
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
已知光學顯微鏡可觀察範圍為10nm~1cm,下列何者必須使用光學顯微鏡才能進行觀察?
葉綠體的長度大約為5um
蛋白質大小為4nm
鴕鳥蛋長18cm
碳原子的半徑大約7nm
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
科學記數法又稱為科學記號,是一種數字的表示法,以a×10n表示,1≦a<10。若小明的註冊費為2530元,以科學記號表示,應記為多少元?
2.53×102
2.53×103
25.3×102
2.53×104
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
人體的紅血球直徑大約為0.000006公尺,下列何者是錯誤的記錄結果?
6×10-6公尺
6×1/106公尺
6×1/10-6公尺
6微米
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
尼羅河為世界上最長的河流,長度約為6670km,等於多少cm?
6.67×103
6.67×107
6.67×108
6.67×109
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
已知地球直徑約為1.2萬公里,土星直徑約為12萬公里。小明想知道各行星的大小比例,若以半徑1公分畫圓,代表地球,則代表土星的圓,半徑應為多少公分?
0.5
5
10
20
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
藍鯨是地球上現存體型最大的動物,身長約25公尺,若藍鯨一個細胞的平均長度約為10微米,則藍鯨的身長約為多少個細胞連結而成?
2.5×103
2.5×104
2.5×105
2.5×106
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