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Worksheetsrefraction of light science year 4
Total questions: 40
Worksheet time: 1hrs 20mins
Refraction is when light__________.
Is bounced by an object or material.
Changes speed as it travels in different materials which causes bending.
When light speeds up to over 300,000 km/s
Light emerging from water to air will bend ______ due to the change of speed as it crosses the boundary.
toward the normal
away from the normal
along the normal
Light travels through air, water, glass and many other materials. What path does it travel to get from one place to another?
sideways
back and forth
straight
up and down
What happens to light passing through a hand lens that makes the image of the penny appear larger? The light is-
The bending of light is called...
a rainbow
refraction
reflection
absorption
Light travels in a _________ line.
wavy
curved
straight
low
What does the picture show about light?
reflection
absorption
refraction
light
Refraction is
the bending of light as it passes into new medium and changes speed
the bending of light around or through a barrier and changes speed
when light bounces off a boundary and changes speed
the bending of light as it crosses a boundary into a new medium with the same speed
As light leaves air and enters water or glass it....
gets faster and bends towards the normal
gets faster and bends away from the normal
gets slower and bends towards the normal
gets slower and bends away from the normal
This picture illustrates ...
light refracts away from the normal when leaving water and entering air
light refracts towards the normal when leaving water and entering air
light does not refract when leaving water and entering air
light continues to travel in a straight line across the boundary between water and air
Light passes into a glass block. Which is the angle of refraction?
A
B
C
D
The diagram below shows a ray of monochromatic light incident on a boundary between air and glass. Which of the letters represent the path after it strikes the glass?
A
B
C
D
Why does the straw appear to be bent?
light is reflected
light is absorbed
light is turned
light is refracted
What do we call a material that light can travel through?
air
water
medium
pathway
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
Diagram shows the condition of a spoon in a glass of water.
What can be observed about the spoon?
The spoon looks bent.
The water is clearer.
The water level rises.
Light is refracted.
What is the conclusion from your observation in this picture?
Light travels in a straight line
Light can be refracted
Light can be reflected
Light can pass through a transparent material
Which of the following shows the principle of light refraction? Tick the correct answers.
A
B
D
E
F
This image is an example of …………..
Reflection phenomenon
Diffusion phenomenon
Refraction phenomenon
Light travels at a speed of 300,000 km/s in outer space but can slow in different materials like glass or water.
True
False
The pencil appears broken because light?
refracted
reflected
Swimming pools and the ocean look shallower than they really are due to?
refraction
reflection
