
G8 force and motion
Quiz
•
Physics
•
8th Grade
•
Practice Problem
•
Medium
+1
Standards-aligned
Janine Feng
Used 7+ times
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26 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下面各要素中,不属于力的三要素的是( )
力的方向
力的大小
力的单位
力的作用点
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
跳水比赛时,运动员越靠近跳板的前端边缘,跳板的弯曲越明显。这说明力的作用效果与( )有关
力的大小
力的方向
力的作用点
上述三项无关
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
小强和大勇一起用力拉弹簧锻炼身体。比较甲、乙两图所示的情景,主要说明力的作用效果与力的三要素中的那个要素有关( )
作用点
大小
方向
以上因素均无关
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列现象不能说明物体具有惯性的是( )
射出枪膛的子弹,仍能在空中飞行
树上熟透的苹果,沿竖直方向落下
行驶的汽车紧急刹车后,还会向前滑行一段时间
站立在静止的汽车上的人,当车突然向前启动时,人会向前摔倒
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列情境中,处于平衡态的是( )
绕地球匀速运行的卫星
加速追赶猎物的猎豹
下落的苹果
匀速下降的跳伞运动员
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
一辆空载汽车停在水平路面上,下列属于一对平衡力的是( )
汽车的重力和路面对汽车的阻力
路面对汽车的支持力和汽车对路面的压力
汽车的重力和汽车对路面的压力
汽车的重力和路面对汽车的支持力
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
小红提着包站在水平地面上,下列各对力中属于平衡力的是( )
手对包的拉力与包的重力
小红的重力与地面对小红的支持力
手对包的拉力与包对手的拉力
小红的重力与小红对地面的压力
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