
六年级科学 单元六 力
Quiz
•
Science
•
6th Grade
•
Practice Problem
•
Medium
CHIA LIAN
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以上的动作涉及什么力?
拉力
推力
摩擦力
拉力和推力
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪项是摩擦力的好处?
使物体的表面磨损
可以使工作更费劲儿
让我们可以握紧物品
可以减轻物体移动的速度
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小华正在按门铃。以下哪项活动与小华所使用的力相同?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
图里显示两个学生正在进行的游戏。如果学生K的拉力比学生L的大,会有什么结果?
学生K会往前移动
学生L会往前移动
学生L会往后移动
学生K和学生L会保持不动
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪种表面与物体之间所产生的摩擦力最大?
面巾
木板
玻璃
砂纸
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
应用以下哪种物体可以增加摩擦力?
气垫
润滑油
光滑的表面
有花纹的表面
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪一种方法可以帮助图里的学生更容易拉动箱子?
增加箱子的重量
在箱子下安装轮子
使用更粗大的绳子
增加地面的粗糙度
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