
B5C1_直線運動
Interactive Video
•
Science
•
9th Grade
•
Practice Problem
•
Hard
chungtsenchen01 chungtsenchen01
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
單擺的等時性原理是什麼?
擺動時間與擺錘的顏色有關
擺動時間只與繩子的長度有關
擺動時間與擺錘的形狀有關
擺錘的重量決定擺動時間
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
路徑長和位移的主要區別是什麼?
路徑長和位移都有方向
路徑長和位移都沒有方向
位移有方向,路徑長沒有
路徑長有方向,位移沒有
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
加速度描述的是什麼?
物體的速度變化率
物體的形狀變化
物體的顏色變化
物體的溫度變化
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
伽利略的實驗證明了什麼?
重物比輕物下落快
輕物比重物下落快
在理想狀況下,所有物體的下落加速度相同
物體的下落速度與顏色有關
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
為什麼在現實中羽毛和石頭下落的方式不同?
因為石頭比羽毛重
因為羽毛比石頭輕
因為空氣阻力的影響
因為地球的重力不同
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