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WorksheetsU1 L1 Questions
Total questions: 41
Worksheet time: 21mins
Name
Class
Date
1.
The light rays that can be seen are called…………
a)
Visible spectrum
b)
Infrared rays.
c)
Ultraviolet rays.
d)
All the previous answers.
2.
Light transmits in ……… lines.
a)
curved
b)
broken
c)
straight
d)
zigzag
3.
formation of images through narrow holes is due to ………….
a)
travailing of light in straight lines
b)
light reflection.
c)
Light refraction.
d)
separation of light.
4.
The image of the object that is formed by the camera is………..
a)
A. inverted
b)
B. minimized.
c)
C. enlarged.
d)
D. (a) and (b).
5.
When light falls on an opaque body, ………… is formed.
a)
no image
b)
white light
c)
a shadow
d)
an inverted image
6.
Materials that we can see objects less clearly through are called………..
a)
Opaque materials.
b)
Transparent materials.
c)
Semi-transparent materials.
d)
Spectrum colours.
7.
…………. Materials don’t allow light to travel through
a)
Transparent
b)
Translucent
c)
Semi-transparent
d)
Opaque
8.
We can see objects due to ……… of light on them.
a)
Reflection
b)
Refraction
c)
Shadow
d)
spectrum colours
9.
The light bouncing from a plane mirror is known as…………
a)
Regular refraction.
b)
Regular reflection.
c)
Irregular reflection.
d)
Irregular refraction.
10.
The glass prism separates the white light into .............. Spectrum colours.
a)
Seven
b)
Six
c)
Eight
d)
Ten
11.
The white light is separated into seven spectrum colours by using………..
a)
Telescope.
b)
Mirror
c)
Glass prism.
d)
No correct answer
12.
In spectrum colours, the yellow colour lies between………….
a)
Green and indigo colours.
b)
Orange and green colours
c)
Blue and violet colours.
d)
Red and orange colours
13.
All the following are examples of transparent materials except ...........
a)
air
b)
tissue paper
c)
glass
d)
clear water
14.
All the following are examples of opaque materials except ............
a)
frosted glass
b)
rocks
c)
carton paper
d)
wood
15.
Light can be transmitted through ................. materials
a)
A. transparent
b)
B. semi-transparent
c)
C. opaque
d)
D. (a) and (b)
16.
Light is reflected ............ when it falls on a smooth bright surface
a)
regularly
b)
irregularly
c)
and refracted
d)
and scattered
17.
A pencil seems broken when it is placed in a glass cup of water due to the ............. of light
a)
reflection
b)
refraction
c)
separation
d)
absorption
18.
Reflection of light ............
a)
happens when sunlight passes from drops of rain water to air
b)
occurs when light transfers from one transparent medium to another different medium
c)
happens when light travels through narrow holes.
d)
happens when light falls on a mirror surface.
19.
Refraction of light ...............
a)
happens when sunlight passes from drops of rain water to air
b)
occurs when light transfers from one transparent medium to another different medium
c)
happens when light travels through narrow holes.
d)
happens when light falls on a mirror surface.
20.
Rainbow ...............
a)
happens when sunlight passes from drops of rain water to air
b)
occurs when light transfers from one transparent medium to another different medium
c)
happens when light travels through narrow holes.
d)
happens when light falls on a mirror surface.
21.
Light ............
a)
Opaque material.
b)
Separates light into seven colours.
c)
Transparent material.
d)
Propagates in straight lines.
e)
A darkened area formed behind a body exposed to light
22.
Shadow ............
a)
Opaque material.
b)
Separates light into seven colours.
c)
Transparent material.
d)
Propagates in straight lines.
e)
A darkened area formed behind a body exposed to light
23.
Glass ...........
a)
Opaque material.
b)
Separates light into seven colours.
c)
Transparent material.
d)
Propagates in straight lines.
e)
A darkened area formed behind a body exposed to light
24.
Carton paper ..............
a)
Opaque material.
b)
Separates light into seven colours.
c)
Transparent material.
d)
Propagates in straight lines.
e)
A darkened area formed behind a body exposed to light
25.
Glass prism ................
a)
Opaque material.
b)
Separates light into seven colours.
c)
Transparent material.
d)
Propagates in straight lines.
e)
A darkened area formed behind a body exposed to light
26.
Light transmits in straight lines.
a)
true
b)
false
27.
The formed image through narrow holes is inverted.
a)
true
b)
false
28.
Air and water are transparent materials.
a)
true
b)
false
29.
Carton paper is an opaque material.
a)
true
b)
false
30.
the moon seems luminous as it reflects the sunlight
a)
true
b)
false
31.
Reflection of light is the bouncing of light after falling on an object.
a)
true
b)
false
32.
when light passes from air to glass, it refracts
a)
true
b)
false
33.
the glass prism is used to separate the white light into seven spectrum colours
a)
true
b)
false
34.
The visible spectrum is the tight energy that can be seen
a)
true
b)
false
35.
The formation of shadow indicates that light travels in curved lines
a)
true
b)
false
36.
Semi-transparent materials let most light pass through and we can see objects clearly through them
a)
true
b)
false
37.
A sheet of aluminium foil is a transparent material, while the frosted glass is a semi-transparent material.
a)
true
b)
false
38.
A spoon appears broken when it is placed in a cup of water due to the refraction of light
a)
true
b)
false
39.
Rainbow is formed in the sky before rainfall.
a)
true
b)
false
40.
When the sunlight passes through the drops of rain water, rainbow is formed.
a)
true
b)
false
41.
Red is the first colour in the spectrum colours, but violet is the last colour in the spectrum colours.
a)
true
b)
false
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