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中三溫習小測驗

Authored by CHU (CWT)

Physics

9th Grade

Used 11+ times

中三溫習小測驗
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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

Media Image

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

Media Image

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

Media Image

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

Media Image

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

Media Image

Which of the following diagrams is/are correct?

(1) only

(3) only

(1) and (2) only

(1) and (3) only

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