
z自然6-2
Quiz
•
English
•
8th Grade
•
Practice Problem
•
Medium

林愛羣 林愛羣
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19 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(甲)物體產生形變的程度;(乙)物體密度的變化程度;(丙)物體運動狀態改變的程度;(丁)物體吸收熱量後溫度變化的程度。在理化中,我們可以藉由前述哪些現象來測量力的大小?
僅甲乙
僅甲丙
僅甲乙丁
甲乙丙丁
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
在地球上,一彈簧掛 1 公斤重的物體時伸長 2 公分,若在月球上將同一彈簧用手拉長 2 公分,此時對彈簧的拉力為何?
略小於 1 公斤重
等於 1 公斤重
略大於 1 公斤重
無法確定
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
在彈性限度內,若地球上 20 公克重的外力可使某彈簧伸長 6 公分,則月球上 20 公克重的外力可使同一彈簧伸長多少公分?
1
6
12
36
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
彈簧下端懸掛 1 仟克重的物體,彈簧伸長 2 公分,掛 2 仟克重物體則伸長 4 公分;改用手拉使彈簧伸長 3 公分,則需施力多少?
3 公斤重
1.5 公斤重
3 仟克重
以上皆非
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
F1、F2 兩力之合力為 R,若 F1>F2,則 F1、F2、R 三者大小之關係必為下列何者?
R≧(F1+F2)
R≦(F1-F2)
F1<F2<R
(F1+F2)≧R≧(F1-F2)
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
若 F1、F2 兩力之合力為 F3,則 F3 之大小為何?
必大於 F1或 F2
必小於 F1 或 F2
必等於 F1 和 F2 之和
隨 F1、F2 兩力之夾角而定
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
兩力之合力為 10 kgw,則此兩力可能為下列何者?(甲) 3 kgw、7 kgw;(乙) 6 kgw、8 kgw;(丙) 4 kgw、5 kgw;(丁) 2 kgw、5 kgw。
甲
甲乙
甲乙丙
甲乙丁
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