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WorksheetsPhysics (Chapter 14.1-14.3)
Total questions: 18
Worksheet time: 19mins
Which of the following is a luminous object?
以下哪項是發光體？
Glass 玻璃
The Moon 月球
Burning candle 燃燒中的蠟燭
Mirror 鏡子
Which of the following ray diagrams shows an observer seeing a distant object?
以下哪幅光線圖顯示觀察者在看着遙遠的物體？
What is the angle of reflection? 反射角是多少？
30°
40°
50°
60°
A
B
C
D
John is sitting 3 m in front of a plane mirror. How far away is his image from him?
思勤坐在平面鏡前方3 m的位置，他的像距離他多遠？
1.5 m
3 m
6 m
12 m
The diagram below shows the image of a clock formed in a plane mirror. Which of the following shows the actual time at this instant? 下圖顯示時鐘在平面鏡形成的像。當時的時間是多少？
5:69
6:29
6:59
9:56
A light ray is travelling from air towards glass, as shown below. Which of the following light rays can be the possible refracted ray?
下圖中，一條光線由空氣射向玻璃。以下哪條有可能是折射線？
A
B
C
D
When a light ray travels from water to air, it bends away from the normal.
當光線由水進入空氣時，會偏離法線。
True
False
When a light ray travels from diamond to glass, it bends away from the normal.
當光線由鑽石進入玻璃時，會偏離法線。
True
False
The angle of incidence is always equal to the angle of refraction.
折射角相等於入射角。
True
False
The refractive index of vacuum is 1.
真空的折射率是1。
True
False
Reflection and refraction can occur at the same time.
反射及折射能同時發生。
True
False
If a light ray travels from air towards water along the normal, it won't bend.
假如光線沿着法線由空氣射向水，光線不會偏折。
True
False
Different media have different __________________, which lead to different degrees of bending of light as light travels from one medium to another.
不同介質各有不同的______________，因此光從一種介質進入另一種介質時的偏折幅度不同。
(a)
Choose non-luminous object (You can choose more than one)
選擇非發光體（你可以選多過一個）
Stars
The Moon
Wood
The Sun
Mirror
A
B
C
D
When we look at a fish in the water at the shore, it appears to be
當我們在岸邊觀看水中的魚時，它看起來會
higher than its actual position.比實質的位置高。
lower than its actual position.比實質的位置低。
bent.折曲了。
inverted.倒置了。
