WorksheetsRevision Quiz - Light, shadows and reflection_02
Total questions: 30
Worksheet time: 23mins
The objects which emit their own light are
called ______________
Luminous Objects
Non - Luminous Objects
This is an example of
Natural Luminous Objects
Artificial Luminous Objects
____________are formed when an opaque or a translucent object blocks the path of light.
Shadows
Reflection
Light
A mirror is a transparent object
False
True
Materials which allow almost all the light to pass through them are called transparent materials.
True
False
A shadow is always ____________ color
white
black
red
green
This is an example of
Non - luminous objects
Luminous Objects
Artificial Luminous Objects
Natural luminous Objects
___________ is the natural emission of light by living organisms.
Bioluminescence
cells
Luminous Objects
Non - Luminous Objects
Light travels in a straight line; which property is it
Rectilinear Propagation
Reflection of Light
Refraction of Light
Eclipse
What are the things required to form a shadow?
screen, mirror, opaque object
mirror, a source of light, glass
source of light, a screen, opaque object
When light hits an object and bounces back it is called:
echo
rectillinear propagation
absorbing
reflection
both a and b
When light hits a barrier that is solid/opaque what is usually created?
a reflection
a shadow
an opaque objects
Which of the following does not have light of its own?
a torch
the sun
the moon
a lamp
when the sun is behind you. your shadow is ...
On the left side
Behind you
On the right side
In front of you
shadows are longest during
Night
Sunrise
Sunset
Noon
Both B and C
why do shadows made by the sun move
Because the sun appears to move across the sky
Because it's magic!
Because the weather changes
Because someone moves the objects
which of the following is an opaque object
glass
mirror
cellophane tape
both band c
A shadow cast by heavenly bodies is called
Solar Flare
Eclipse
Corona
UFO
As the object moves closer to the source of light, the size of the shadow
increases
decreases
remains the same
is too small to see
Which will make the darkest shadow?
Sheet of thin tissue paper.
glass window
wooden chopping board
plastic bottle
Identify the eclipse by looking at the positions.
Lunar Eclipse
Solar Eclipse
The Lunar Eclipse occurs on
New Moon
Full Moon
Gibbus Moon
Light is a form of ______ that is essential for the existence of life.
chemical
expression
term
energy
Light travels in a _________ path
Straight
Curved
Slanting
None of these
shadows only have one color
true
false
light passes through transparent objects
true
false
During a ____________ eclipse the moon casts a shadow on the earth
solar
lunar
What is the best explanation for a person seeing himself in the mirror?
reflection
refraction
absorbed
flipped
Where will the tree's shadow be?
A
B
C
Which of the following is a cold source of light?
Bonfire
CFL lamp
The sun
Electric bulb
