同一时间,阳光下不同物体的影子

科学百科知识竞赛

Quiz
•
Science
•
5th Grade
•
Medium

Yixin Chen
Used 4+ times
FREE Resource
33 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
形状相同
方向相同
长短相同
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1769年,_____成功改良蒸汽机,提高它的效率,取代过去人们常用的动力,例如水力、畜力等。
富尔敦
史蒂芬逊
达尔文
瓦特
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
日心说是谁创立的
哥白尼
伽利略
达尔文
马克思
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
电灯是谁发明的?
詹天佑
贝尔
瓦特
爱迪生
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
镜面能够反光,镜面的这种性质称为
直射
反射
折射
反
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
地球的卫星是
火星
太阳
月亮
木星
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
地球上的能量绝大多数来自
太阳
水
地壳
空气
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