
質量的測量練習題001_上皿天平的使用
Quiz
•
Science
•
7th Grade
•
Medium
鄭之偉 鄭之偉
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12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小德將一顆橘子放在已歸零上皿天平的左盤,以砝碼測得橘子的質量為98公克,如果將橘子改放在右盤,砝碼放在左盤,則測出的質量有何不同?
小於98公克
大於98公克
仍為98公克
無法測量
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
使用天平可以準確測量物體的質量,則下列有關上皿天平的構造與使用方法的敘述何者錯誤?
使用前必須先歸零
待測物體一般都放在左盤
歸零後,再將秤量紙放在秤盤上盛裝藥品測量
質量較大的砝碼,應置於秤盤的中央。
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
利用天平秤量物體時,應如何正確的取用砝碼?
直接用手拿取砝碼
以手隔著乾抹布拿取砝碼
用砝碼夾夾取砝碼
為防止砝碼生鏽,必須先將手擦乾再拿取砝碼。
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
怡璇使用砝碼和上皿天平測量物體質量,當天平平衡時,右盤上的砝碼為:50公克一個、20公克兩個、1公克三個;則此物體的質量應為多少公克?
71
71.0
93
93.0
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在一已歸零的上皿天平左端置一物體,而在右端置一標示為20公克的生鏽砝碼,若此時天平呈水平靜止,則物體質量大小與20公克比較應為何?
較大
較小
相同
資料不足,無法比較
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
克謙利用上皿天平測量一個玩具的質量,他在天平歸零後將玩具放置於左盤,砝碼放置在右盤,右盤中有10公克的砝碼一個,5公克的砝碼一個,2公克的砝碼3個,平衡時天平指針往左邊傾斜,可知玩具的質量為多少?
小於21公克
等於21公克
大於21公克
資料不足無法計算。
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小芳用天平測量一個小熊布娃娃的質量,當天平平衡時,右盤中有10公克砝碼兩個,2公克砝碼一個,則小熊的質量應為多少公克?
22
22.0
222
222.0
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