以下哪一項是發光體?
(1) 燈泡
(2) 木材
(3) 月亮
中三溫習小測驗
Quiz
•
Physics
•
9th Grade
•
Medium
CHU (CWT)
Used 11+ times
FREE Resource
17 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪一項是發光體?
(1) 燈泡
(2) 木材
(3) 月亮
只有 (1) 和 (2)
只有 (1) 和 (3)
只有 (2) 和 (3)
(1)、(2) 和 (3)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
上圖顯示一塊安裝在屋頂的反光板,用來反射陽光進室內。一條與水平成 30° 的光線射到反光板上,然後垂直地反射進室內。試求反光板與水平線間的夾角。
30°
45°
60°
75°
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列各項關於漫反射的敍述中,哪些是正確的?
(1) 漫反射並不遵循反射定律。
(2) 光投射在粗糙的表面上時會發生漫反射,所以不能形成清晰的像。
(3) 由於漫反射的緣故,我們才能看到不發光體。
只有 (1) 和 (2)
只有 (1) 和 (3)
只有 (2) 和 (3)
(1)、(2) 和 (3)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖所示,一塊平面鏡反射一條光線從 X 而來的光線到觀察者的眼睛。成像會位於哪一點?
P
Q
R
S
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖所示,志強站於平面鏡前 4 m,一落地燈剛好位於他與平面鏡的中間。假如志強需替平面鏡中落地燈的像拍攝一幅清晰的照片,他應對焦在離他多遠的位置?
2 m
4 m
6 m
8 m
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一名女孩剛好坐在電視機與平面鏡的中間。假如電視機與平面鏡的距離為 6 m,試求女孩與電視機的像之間的距離。
3 m
6 m
9 m
12 m
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following diagrams is/are correct?
(1) only
(3) only
(1) and (2) only
(1) and (3) only
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