科学 二年级
Quiz
•
Science
•
2nd Grade
•
Practice Problem
•
Medium
SOH Moe
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列图中哪个不是光源?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
选出正确的答案。
光使周围变得明亮,让我们不能看见四周的物体。
在光亮的情况下,我们较容易进行活动。
在黑暗的情况下,我们能看清周围的物体。
在没有光源的照射下,我们能看清楚周围的物体。
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
有些物体不能让光透过,这些物体会形成
模糊的影子。
清晰的影子。
非常模糊的影子。
没有影子
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
太阳在榴莲树的后方,影子会出现在榴莲树的
左边。
右边。
前面。
后面。
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
图中的电路元件有什么功用?
发出光亮
接通电路
截断电路
提供电流
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
图中的灯泡为什么不会发亮?
干电池装置错误。
开关没被按下。
电线没完整链接。
灯丝烧坏。
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪项是电导体?
银戒指、桌布、塑料瓶
钢尺、盐水、玻璃瓶
金耳环、铅笔芯、铁片
食油、书本、橡皮
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