
初一物理线上测试-上册第7章-认识物质
Quiz
•
Physics
•
7th Grade
•
Medium
KHOO XUEMEY
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
物体是由物质构成的。下列选项中,对应错误的是
铅笔 - 石墨
玻璃杯 - 玻璃
氢气球 - 空气
锅 - 铁
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪项不是液体的特征?
流动性
有一定的体积
有一定的形状
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪项有关物质的性质的叙述是正确的?
糖水具有一定的体积和形状
冰糖具有稳固性和流动性
二氧化碳具有弥散性
空气具有一定的形状,但没有一定的体积
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下关于布朗运动的说明,正确的是
布朗运动是液体分子的无规则运动。
布朗运动不会被温度影响。
布朗运动是证明颗粒会浮的运动。
布朗运动是悬浮颗粒的无规则运动。
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪一项说明是错误的?
充有气体的气球比没有充气的气球重,证明了气体具有质量。
吃饱饭后体重增加了,证明气体具有质量。
一个杯子装太多水会溢出,证明了液体占据空间。
无法将充满气的气球放进眼睛盒子里,证明气体占据空间。
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
热胀冷缩会造成路面的开裂或拱起。因此,在筑路时应该
加厚路面。
留出伸缩缝。
放干冰在路面下。
放润滑剂。
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列有关热胀冷缩的例子,错误的是
密封物件需留些空间,让里面液体热胀时有一定空间
汽车中的塑料容器为冷却剂热胀提供而外的空间
补牙的材料与牙齿热胀冷缩相近
输送蒸汽的管道做成L形,以免热胀冷缩的破坏
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