
國中自然2上ch1-2測量與估計
Authored by 翰林出版國中自然 翰林出版國中自然
Science
8th Grade
8 Questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
測量免不了要估計,因此就會有誤差,請問下列對於一個測量結果的敘述,何者正確?
估計值位數愈多,則測量結果愈準確
多次測量後,再取平均值,通常可以得到較準確的測量結果
選擇不同的測量工具,不會影響測量的結果
使用相同的測量工具,測量同一個物品,測量的結果必定相同
2.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
阿翰使用不同的尺,測量同一枝鉛筆的長度,測量情形如附圖所示。請問下列關於這兩次測量結果的敘述,何者錯誤?
甲的測量值為3.0cm
兩把尺的最小刻度不同
乙的測量值為3.0cm
使用乙尺可測得較準確的測量值
3.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
下列哪一個敘述不會有誤差?
書桌厚度為1.7公分
小新的體重為50公斤重
今日高溫為33℃
某國中有305人,其中170人為女生
4.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
有六位同學用相同的直尺,分別測量某一物體的長度,其結果如下:27.5公分、27.4公分、27.47公分、27.6公分、27.5公分、27.5公分,則下列敘述何者錯誤?
所用直尺的最小刻度為「公分」
每個人測量的結果都不同的主要是因為估計不同或看錯刻度或測量方法不正確
這個物體的長最接近「27.5公分」
測出「27.47公分」的那位同學測量最準確
5.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
試判斷下列三個長度的測量值所使用直尺的最小刻度為何?甲=1.201公尺;乙=58.2公分;丙=3.425×102毫米。
甲與乙相同
乙與丙相同
丙與甲相同
三者均不相同
6.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
四位同學用最小刻度為mm的直尺測量橡皮擦的長度,其結果如附表,則下列何者的紀錄正確?
小華
小佳
小薇
小強
7.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
如圖所示,有三位同學測量螺絲起子的長度,結果如附表,則紀錄正確的為何者?
喬巴
喬巴、薇薇
薇薇
娜美
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