六年级科学 第6单元:力
Quiz
•
Science
•
6th Grade
•
Practice Problem
•
Medium
艾霓 Ai Nee
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
什么是力?
拉力施加在物体上
推力施加在物体上
推力和拉里施加在物体上
物体的移动而产生一种力量
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
根据上图,以下哪项说明是正确的?
力会改变物体的形状
力会使静止的物体移动
力会改变物体移动的速度
力会改变物体移动的方向
3.
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
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如果我要踩扁以上的铝罐,这涉及什么力?哪个才是施力的方向?
拉力,P方向
推力, R方向
拉力,Q方向
推力,Q方向
5.
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
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
什么是摩擦力?
一股推动物体移动的力
阻碍物体移动的力
增加物体质量的力
施加在物体的力
7.
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
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