
J2上Chap4
Authored by 曼妮 李
Science
8th Grade

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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在试管内装满水,用塞子塞紧管口,把试管倒立在水中,拔除塞子后,管内的水不会流出来。这是因为。
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪个现象跟大气压无关?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
把装满水的瓶子口朝下浸入水中 (如图所示) ,用手抓住瓶底慢慢向上提,在瓶口离开水面之前, 瓶子中水的情况是。
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在海拔 2000m 的范围内,每升高 9m, 大气压降低 100Pa。某山脚的大气压强为 1.01x10⁵Pa,山顶的大气压强为 1x10⁴Pa,此山的高度约为()。
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪个说明与图一的压力锅是无关的?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如图二所示,小明想把瓶子上的鸡蛋完整无缺的逼入瓶子内。试问他可采取什么行动?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
屋顶承受巨大的大气压,但并没有把屋顶压垮,这是因为()。
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