
九上理化1.4
Interactive Video
•
Science
•
9th Grade
•
Practice Problem
•
Medium
錦松 高
Used 2+ times
FREE Resource
9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
打點計時器的頻率為50赫茲時,相鄰兩點之間的時間間隔是多少?
0.01 秒
0.02 秒
0.05 秒
0.1 秒
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪種打點紙帶表示物體正在做加速運動(速度漸快)?(假設運動方向由左至右)
點與點之間距離相等
點與點之間距離由左至右逐漸縮小
點與點之間距離由左至右逐漸增大
所有點都重疊在一起
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪種打點紙帶表示物體處於靜止狀態?
點與點之間距離相等
點與點之間距離由左至右逐漸縮小
點與點之間距離由左至右逐漸增大
所有點都重疊在一起
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
當物體的加速度方向與速度方向相同時,物體的運動狀態會如何?
物體速度會變快
物體速度會變慢
物體速度保持不變
物體運動方向會改變
5.
MULTIPLE CHOICE QUESTION
30 sec • Ungraded
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6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
關於甲車與乙車的運動,下列敘述何者正確?
甲車的加速度為負值。
乙車的加速度為正值。
甲車與乙車皆為等加速度運動。
甲車的速度隨時間減少。
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
根據v-t圖,物體從何時開始做反向運動?
0秒時
5秒時
10秒時
15秒時
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