
设计与工艺6年级
Quiz
•
Other
•
6th Grade
•
Practice Problem
•
Medium
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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1.设计的主要目的是为了
A. 让生活更复杂
B. 解决问题和创造新事物
C. 增加作业量
D. 随便画画
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
齿轮之间正确啮合时,它们的转动方向是
A. 相同
B. 不确定
C. 相反
D. 不会转动
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
齿轮的主要作用是什么?
A. 装饰机器用的
B. 增加机器的重量
C. 传递动力和改变运动方向
D. 让机器变得更安静
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪种结构组合不属于齿轮传动?
A. 齿轮和滑轮
B. 齿轮和链条
C. 齿轮和皮带
D. 齿轮和齿轮
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在一个学生设计的机械模型中,使用了3个齿轮。如果第一个齿轮顺时针转动,第三个齿轮会怎么转?
A. 顺时针
B. 逆时针
C. 不动
D. 无法确定
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如果你想让一个装置转得更有力但速度变慢,你应该怎么做?
A. 用大齿轮带动小齿轮
B. 增加润滑油
C. 用更小的齿轮
D. 用小齿轮带动大齿轮
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