
第四章大气压强随堂网测
Quiz
•
Science
•
1st Grade - Professional Development
•
Medium
陈淑娟Tan Kuan
Used 160+ times
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
下列现象中与大气压强有关的是( )?
气球漂浮在空中
温度计内水银柱上升
吸盘贴在光滑墙壁上
用注射器将药液注入肌肉
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
显婷同学在玻璃杯中盛满水,杯口盖上一张硬纸(不留空隙),先用手按住纸片,并将杯子倒置或倾斜,放开手发现水并没有流出来。对整个探究活动的分析正确的是( )。
探究问题:大气压强有多大
探究假设:大气对各个方向都有压强
探究目的:研究水的重力和大气压的关系
探究结论:大气向各个方向的压强相等
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
栋进同学将烧热的铝质可乐罐扣朝下放入水中,观察到的现象是( )。
可乐罐的体积变大
可乐罐被压扁,体积变小
水进入可乐罐,使可乐罐裂开
水沸腾,可乐罐体积维持不变
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
屋顶承受着巨大的大气压,但并没有把屋顶压垮,这是因为( )。
屋顶四周有坚固的墙支撑着
屋顶承受压强大于大气压
屋内空气对屋顶也有着同样的大气压
屋顶的面积大,大气压的效果被分散了
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
在托里拆利测量大气压的实验当中,若真空的试管内进入少量空气,则水银柱的高度将( )。
上升
下降
不变
无法确定
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
如图4-1所示为从不同高度测得的大气压值,从中可知( )。
大气压随高度增加而增大
大气压随高度增加而减小
大气压随高度增加而先增加后减小
大气压与高度无关
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
飞机在高空中飞行时,机舱内需要( )。
增压
降压
不改变气压
都有可能
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