WorksheetsIS_Section Quiz_14.1-14.2_e
Total questions: 20
Worksheet time: 10mins
A candle flame is a luminous object.
True
False
We can see non-luminous objects when light passes through them.
True
False
We can use a ray diagram to show how we see an object.
True
False
Reflection of light only occurs at plane mirrors.
True
False
A periscope is an application of reflection of light.
True
False
A firefly can be a luminous object.
True
False
When the light shining on an object is blocked, a shadow is formed.
True
False
A light ray striking a rough surface will not follow the laws of reflection.
True
False
The image formed by a plane mirror is located on the surface of the mirror.
True
False
Periscopes can be used to see over obstacles.
True
False
Which of the following are luminous object(s)?
(1) The monitor of a tablet that is working
(2) A meteor (流星)
(3) Fireworks
A. (1) and (2) only
B. (1) and (3) only
C. (2) and (3) only
D. (1), (2) and (3)
Which property of light can we prove from the experimental set-up?
A. Light travels in a straight line.
B. Light travels in different directions.
C. Light can pass through white objects.
D. Light can be absorbed by white objects.
What is the angle of reflection of the light ray?
A. 30°
B. 35°
C. 55°
D. 75°
Which of the following statements about the images formed by a plane mirror is INCORRECT?
A. The images formed must be laterally inverted.
B. The images formed must be larger than the objects.
C. The image formed is always located behind the mirror.
D. The images formed must be erect.
Which of the following is/are application(s) of reflection of light?
(1) Daylighting
(2) A kaleidoscope (萬花筒)
(3) Magnifying glass
A. (1) only
B. (3) only
C. (1) and (2) only
D. (2) and (3) only
Which of the following are non-luminous object(s)?
(1) Diamond
(2) The Moon
(3) An LED lamp that is working
A. (1) and (2) only
B. (1) and (3) only
C. (2) and (3) only
D. (1), (2) and (3)
A light ray is reflected by a plane mirror as shown. Which of the following equations must be correct?
(1) p = r
(2) q = r
(3) p = s
A. (2) only
B. (1) and (3) only
C. (2) and (3) only
D. (1), (2) and (3)
If the word ‘SCIENCE’ is placed in front of a plane mirror, how many letters will appear the same as their images?
A. 1
B. 2
C. 3
D. 4
A watch is placed in front of a plane mirror as shown. What is the time shown on the watch?
A. 2:00
B. 4:00
C. 8:00
D. 10:00
Which of the following are uses of plane mirrors?
(1) Extending the field of view
(2) Reflecting sunlight
(3) For interior design and producing lighting effects
A. (1) and (2) only
B. (1) and (3) only
C. (2) and (3) only
D. (1), (2) and (3)
