
1-1時間測量
Authored by 葉 進坤
Science
8th Grade
Used 3+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
怡晴、怡欣、怡汝三人各用長100公分之繩子作單擺實驗,其所用之擺錘質量各重20克、30克、40克,且所測之週期各為T1、T2、T3,則三者之大小關係為何?
)T1>T2>T3
T1<T2<T3
T1=T2=T3
不能比較
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
當單擺擺角小於10°,單擺來回擺動一次的時間幾乎相同,故稱單擺具有什麼性質?
同質性
可逆性
等時性
對稱性
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
體重較重的奇璋和體重較輕的明順分別玩相同的秋千,若兩人擺動幅度皆不超過10°,則何人擺動一次所需時間應該較短?
奇璋
明順
兩者相同
不一定
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列有關太陽日的敘述,何者錯誤?
太陽連續兩次在天空中高度角最大的位置時,所經歷的時間為一個太陽日
一年中各個太陽日的平均值為一個平均太陽日
在同一年中,各個太陽日的長短均相同
一個平均太陽日等於86400秒
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
一單擺擺長25 cm,擺錘質量25 g,來回30次時需時30秒,若擺長不變,擺錘質量改為50 g,振動20次時需時多少?
10秒
20秒
5秒
資料不足,無法預測
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
子恆研究單擺之週期,其實驗數據如附表所示,由附表之資料可以推論:
單擺的週期與擺長無關
單擺的週期與擺錘質量無關
單擺的週期與擺角無關
單擺的週期與擺長、擺錘質量及擺角皆無關
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
附圖為擺長20公分單擺之擺動次數與時間關係圖,由圖知:
此單擺之週期為2秒
擺動5次需時6秒
擺動次數與時間成正比
若擺長增長,則週期變大
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