時間與計時工具
Quiz
•
Science
•
5th Grade
•
Practice Problem
•
Medium
Used 9+ times
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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
當單擺的擺長從20公分縮短為10公分,其他條件不變時,擺動10次所需的時間會有什麼變化?
變長
變短
不變
變得不規律
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
進行單擺擺動試驗時,單擺的擺錘去時算一次,回時也算一次,所以單擺去回擺動,一共應計兩次。
對
錯
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
使用同一個單擺測量時,當單擺擺動時間加倍,擺動的次數也會加倍。
對
錯
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
發現單擺具有規律性的科學家是誰?
伽利略
牛頓
惠更斯
李白
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小敏利用一個金屬片和棉線做成擺錘,進行單擺試驗,他發現單擺擺動20次時,所需時間為20秒。如果小敏將金屬片的數量增加到四個,而擺長維持不變,再次進行試驗,當單擺擺動20次,所需的時間會最接近下列哪一個?
10秒
20秒
30秒
40秒
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
從單擺試驗結果,可以得到什麼結論?
單擺擺動時間和次數具有規律性
用單擺計時比馬錶來得準確
單擺擺錘的材質會影響單擺試驗的結果
單擺的擺動次數和擺動時間無關
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一年有60天,一個世紀有60年。
對
錯
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