
4-1~4-3
Authored by Naijun Wang
Science
8th Grade
Used 1+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
夏日中午在榕樹底的地面,時常可看見好多個圓形的、明亮的、大小相當一致的光亮區域,則此光高圓盤是何物的影子或像?
太陽的像
樹葉的像
太陽的影子
樹葉的影子
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
夏天太陽由早上到黃昏前,升旗桿影子的移動方向及其大小如何變化?
向西移,逐漸變小
向東移,逐漸變大
向東移,先變小後變大
向西移,先變大後變小
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A
B
C
D
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
有關「光的反射」的敍述,下列何者錯誤?
光反射時,其入射角等於反射角
光的反射是光在兩界面間反射回原介質的現象
光反射時,入射線與反射線不一定要在同一平面上
無論反射面是否為平面,光的反射都遵守反射定律
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖,甲、乙、丙是三條入射平面鏡的光線,則此三條入射光線的反射角大小關係為何?
甲>乙>丙
甲=乙=丙
丙>乙>甲
乙>丙>甲
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
琳琳站在直立的平面鏡前5公尺處,若將鏡子向琳琳平移2公尺,則琳琳和像之間的距離會變成多少公尺?
3
4.5
6
9
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖所示,對著湯匙的凸面可看到自己的影像在湯匙內出現,所看到成像的性質為下列何者?
縮小虛像
縮小實像
放大虛像
放大實像
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