科学初二上册 第4章 大气的压强(测验卷)
Quiz
•
Science
•
8th Grade
•
Medium
WEE PENG GOW
Used 1K+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪个现象跟大气压无关?
用吸管喝饮料
紧贴在墙面上的吸盘
马德堡半球相互吸引
热气球升上天空
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
如图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加
大气压随高度增加而减小
流出少量大气压随高度增加而先增加后减小
大气压与高度无关
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
1 mmHg = ______Pa,标准大气压的数值为________mmHg,即 1.01 × 10 ^5 Pa。
133,760,1.01x105 Pa
133,76,1.01x104 Pa
133,76,1.01x105 Pa
133,760,1.01x104 Pa
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
下列哪个说明与右图是不正确的?
此家用的压力锅内的水的沸点可达到200摄氏度左右
此压力锅是利用液体的沸点随气压的增大而升高的原理制成
此锅的内测边缘有个橡胶圈,以保证它具有良好的密闭性
此压力锅可提高烧煮的速度,节省燃
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
在托里拆利测量大气压的实验中,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 SELECT QUESTION
30 sec • 1 pt
以下哪个机器的操纵原理跟气体压强没有任何的关系?
真空压缩袋
吸尘器
桶装石油气
验电器
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
右图显示了气泡从池塘底部冒出来再升到水表面的状况。试问什么会有如此的变化?
压强增大,体积增大
压强增大,体积减小
压强减小,体积增大
压强减小,体积减小
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