
九上自然2.2牛頓第二運動定律10/18課後測驗
Quiz
•
Physics
•
9th Grade
•
Practice Problem
•
Medium
胡綱顯 胡綱顯
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5 questions
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1.
DROPDOWN QUESTION
1 min • 1 pt
當物體不受外力,或所受外力的合力為零時,適用 (a)
當物體所受外力的合力不為零時,適用 (b)
2.
DRAG AND DROP QUESTION
2 mins • 1 pt
牛頓第二運動定律說明,物體的加速度和外力的 (a) 成正比,和物體的 (b) 成反比。
公式為 (c) = (d) × (e)
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
公斤重(kgw)和牛頓(N)都是力量的單位,兩者間的關係是?
1 kgw = 1 N
1 kgw = 9.8 N
1 N = 9.8 kgw
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
要讓 10 kg 的物體產生 5 m/s2 的加速度,需要多大的合力?
2 N
2 kgw
50 N
50 kgw
15 N
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
60 N 的合力,可以使 20 kg 的物體產生多大的加速度?
80 m/s2
40 m/s2
120 m/s2
3 m/s2
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