
2-4圓週運動
Quiz
•
Physics
•
9th Grade
•
Practice Problem
•
Medium
夏志鍊 夏
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10 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
物體作圓週運動時
速度的大小一定改變
速度的方向一定改變
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
若物體作圓周運動時,
速度大小固定不變
則
可以說是等速度運動
可以說是等速率運動
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
若物體作圓周運動時,
因為速度的XX會改變
所以稱為變速度運動
XX是指大小
XX是指方向
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
若物體作圓周運動時,
必定有加速度
則
加速度方向一直指向圓心,
所以加速度的方向不變
加速度方向一直指向圓心,
所以加速度的方向一直改變
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
若物體作圓周運動時,
必定有受到向心力
這是根據
牛頓第一運動定律的推理
牛頓第二運動定律的推理
牛頓第三運動定律的推理
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
綠球作順時針運動,
則行經的各點的順序
A→B→C→D
A→D→C→B
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
承上題,順時針運動過程中~
經過各點時的速度方向(複選二個)
D點時向上
C點時向左
B點時向上
A點時向下
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