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WorksheetsY8 U6 Reflection and refraction [Revision]
Total questions: 35
Worksheet time: 36mins
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?
When does the light is refracted?
When light travels in a straight line
When light is bounced
When light travels in two different mediums
When light cannot pass through an opaque object
What is the angle of reflection equal to?
The angle of refraction
The angle of incidence
The angle of absorption
The angle of light
Identify the following image as or refraction.
Refraction
Reflection
Why does the straw appear to be bent?
light is reflected
light is absorbed
light is turned
light is refracted
In the diagram, which letter represents the reflected ray?
A
B
C
D
What is the angle of reflection equal to?
The angle of refraction
The angle of incidence
The angle of absorption
The angle of light
What happens to light in a prism
The light is refracted.
The light is reflected
The light is absorbed
The light does not change at all.
light speed
Which of the following figures represents the refractoin of light in a rectangular glass block?
Which of the following figures represents a correct light refraction?
What is the cause of refraction of light?
Because the speed of light is different in different medium
Because light travels with same speed in any medium
Light travels with same velocity
All of the above
What is the angle of reflection (θr) in the image?
56o
90o
124o
34o
When does the light is refracted?
When light travels in a straight line
When light is bounced
When light travels in two different mediums
When light cannot pass through an opaque object
When the light passes out of the glass, back into the air
It bends away from the normal
It does not bend
It bends towards the normal
It continues to be the normal
Light travels in a _________ line.
wavy
curved
straight
low
A boy sees a fish in a lake. Which labelled path is taken by the light travelling from the fish to the boy’s eye?
A
B
C
D
A ray of light is reflected by two parallel plane mirrors X and Y. Which statement is correct?
The angle of incidence at mirror X is 30°.
The angle of incidence at mirror Y is 60°.
The angle of reflection at mirror X is 120°.
The angle of reflection at mirror Y is 0°.
What is the name of a line drawn at 900 to the surface of a material?
Boundary
Incident
Normal
Reflected
What is the law of reflection?
Angle of incidence= angle of reflection
Angle of incidence < angle of reflection
Angle of incidence > angle of reflection
A light ray passes from air into water at an angle of 300 . Which of these angles is likely to be the angle of refraction?
30 degrees
22 degrees
38 degrees
At the boundary, when light passes from air into glass
it always changes direction
It sometimes changes direction
It never changes direction
What happens to the speed of light when it passes from air into glass?
it increases
it does not change
it decreases
When a ray of light from air enters a block of glass at an angle, what change in direction will the ray take?
The ray will move towards the normal
The ray won't move at all
The ray will move away from the normal
What letters indicate angles of incidence?
B and F
A and E
A and P
What letters indicate angles of incidence?
B and F
A and E
A and P
What letters indicates angles of refraction?
E and U
P and T
B and Q
