把以下物體分類。

F3 IS Exam 2 Revision 2023-24

Quiz
•
Science
•
9th Grade
•
Easy
Sin Yi Tsang
Used 1+ times
FREE Resource
46 questions
Show all answers
1.
CLASSIFICATION QUESTION
3 mins • 1 pt
Groups:
(a) 發光體
,
(b) 非發光體
光纖
太陽
紙張
燭光
滿月
手提電話
白板
2.
DROPDOWN QUESTION
1 min • 1 pt
假設一支筆放在近處,來自筆上某一點的光線是 (a) 的,而來自遠處高樓上某一點的光線則是 (b) 的。
3.
DRAG AND DROP QUESTION
1 min • 1 pt
(a) 是與平面鏡 (b) 的假想線。
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
下圖中,光線p射向平面鏡,產生反射線r。虛線q和鏡面互相垂直。
以下哪項(些)敍述必定正確?
線p、q和r都在同一平面上。
x = y
w = y
5.
DRAG AND DROP QUESTION
1 min • 1 pt
入射線: (a)
反射線: (b)
入射角: (c)
反射角: (d)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
當一條光線射向平面鏡時,如果平面鏡與入射線的夾角為20°,反射角是多少?
20°
40°
60°
80°
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
平面鏡形成的像和物體__相同。
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