科学模拟考卷
Authored by 余文馨Wendy Yii
Science
7th - 8th Grade
Used 9+ times
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16 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列介质中，传声最快的是
A.水
B. 真空
C.铜
D.空气
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
用较厚的刻度尺测量一物体长度，如图，正确的是
A
B
C
D
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
如图所示，把一块厚玻璃放在钢笔的前面，笔杆看起来好像“错位”了，该图反应的物理规律是
光的折射
光的反射
光沿直线传播
光的色散
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列图示实验操作中，正确的是
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如图放置相同的砖，对地面的压强关系为
p甲＞p乙＞p丙
p甲=p乙＜p丙
p甲＜p乙＜p丙
p甲＜p乙=p丙
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
四种物质中，既有可燃性又有还原性的化合物是
C
H2
CO
CO2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下所示科学家的探究过程，请指出正确的排列顺序。
I. 确定涉及的变数 II. 提出假设 III. 设计探究问题 IV. 设计探究方法
I, II, III, IV
II, III, IV, I
III, I, II, IV
IV, I, III, II
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