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WorksheetsHomework 7: Light
Total questions: 18
Worksheet time: 3hrs 0mins
In the illustration, the light ray striking the object is-
If a capital letter R is seen in an ordinary mirror, what does it look like?
A
B
C
D
What is the name given to a ray of light directed at a mirror?
The incident ray
The normal
The reflected ray
A light ray strikes a mirror at an angle of 60°. What is the angle of reflection?
30°
60°
120°
A light ray strikes a mirror at an angle of 40°. What is the angle of reflection?
40°
50°
80°
Which answer explains why no sunlight gets into the cave chamber?
A. it is night time
B. the cave is underground
C. the light cannot get around the wiggles in the tunnel
D. the caver’s lamp is brighter than the sunlight
The following diagram shows the ray diagram when a torch light is torched towards a mirror. Which of the following is the correct reflected ray?
The following diagram shows a driver who could see the image of a vehicle behind him without turning his back.
Why?
Light travels in a straight line
Light is refracted
Light is reflected
Light travels in two different mediums
Tick the correct of TWO devices which use the principle of light reflection in our daily lives.
Ariff is watching a cat on a wall using a periscope. Which of the following is the correct reflected ray diagram in the periscope? Tick the correct answer.
Which of the following shows that light travels in a straight line? Tick the correct answers.
A
B
C
D
E
Which of the following shows the principle of light reflection? Tick the correct answers.
A
B
D
E
F
What is the object helps navy personnel in a submarine to see an object at the surface at the sea?
periscope
hand held mirror
plane mirror
dental mirror
Why doesn’t the surface of a wooden boat reflect light as the surface of the water does?
Because the boat's surface is rough and dull.
Because the surface of the boat is red, not blue.
Because the boat is not a natural object like the water is.
Because the boat is on top of the water's surface.
From the diagram, which of the following is correct?
The angle of reflection is bigger than the Angle of incidence
The angle of reflection is smaller than the Angle of incidence
The angle of reflection is equal to the Angle of incidence
The angle of reflection is sometimes bigger than the Angle of incidence
Which is the correct mirror image of the word SCIENCE?
Ƨ Ɔ I Ǝ И Ɔ Ǝ
Ǝ Ɔ И Ǝ I Ɔ Ƨ
