WorksheetsC-6 light shadow and reflection
Total questions: 40
Worksheet time: 20mins
The principle behind the pin hole camera is
Curvilinear propagation of light
Rectilinear propagation of light
Image
shadow
The dark patches are formed behind the objects are called
Clear images
Dark images
Dim images
Shadow
Fire fly is a
Non-living luminous body
Plant body
Living luminous body
Heavenly body
Objects which allow light to pass through them are called
Opaque objects
Transparent objects
Translucent objects
Image
Which of the following is an example of a translucent object?
A thin sheet of paper
A thin glass slab
A thin iron sheet
All of these
When an opaque objects comes in the path of light it forms
An image with colors
Shadow
Black and white image
Depends on the color of light
Which letters of English alphabet will not show lateral inversion?
I,O,U
N,Z,X
I,X,E
A,E,I
Bouncing back of light from shining surfaces is called
Dispersion
Refraction
Reflection
Total internal reflection
Assertion(A): Moon is non - luminous object.
Reason(R): Moon does not emit light on their own.
A and R are true. R is not the correct explanation of A
A is true and R is false
A is false and R is true
A and R is true and R is the correct explanation of A
Assertion(A): The image formed in pinhole camera is laterally inverted.
Reason(R) : Image gives the shape, size and color of the object.
A and R are true and R is not the correct explanation of A
A and R are false
A is true and R is false
A and R are true and R is the correct explanation of A.
(a) is a source that enables to see the things around us.
Candles, oil lamps and earthen lamps are (a) sources of light.
Write one property of light.
_______________ and _______________ objects are essential for the formation of shadows on a screen
(a)
Why we cannot see our image in the mirror in complete dark room?
Rectilinear propagation of light means
light bends after striking a smooth surface
light travels in a straight line
light travels in a curvilinear line
both a and b
which of the characteristics is not exhibited by the shadow of an object?
erect
can be formed on screen
same colour as the object
can be bigger than the object
which of the following objects can cast a dark shadow?
a lighted bulb
a wooden door
a glass pane
both a and b
A plane mirror form an image of an object because it ........ light from the object
absorbs
reflects
passes
emits
which of the following the non-luminous obejct
sun
moon
stars
firefly
divergent ray is
none of these
which of the following is an example of an opaque object
clean water
plastic wrap
cardboard sheet
spectacle glass
Image formed in a pinhole camera is
erect
inverted
parallel
none of these
Bending of light is called
reflection
refraction
dispersion
scattering
When light hits an area and bounces back it is called:
echo
refraction
reflection
absorbing
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
When light hits a barrier that is solid/opaque what is usually created?
a hot object
a shadow
nothing
Which color shirt would you rather wear outside on a sunny 90 degree day?
black
white
gray
navy blue
What is the best explanation for Mickey seeing himself in the mirror?
refraction
absorbed
reflection
flipped
If you can see light through an object it is called...
opaque
plastic
transparent
which of the characteristics is not exhibited by the shadow of an object?
erect
can be formed on screen
same colour as the object
can be bigger than the object
Which of the following does not have light of its own?
a torch
a lamp
the moon
the sun
When the Sun is behind you, your shadow is ...
behind you
in front of you
at the side of you
not there
12.Translucent is?
When light bounces off an object
Material that only allows a little light to pass through
Our main source of light
Opaque is?
Material that allows light to pass through
Light made by nature
Material that allows no light to pass through
What is the main source of light?
sun
trees
moon
When an object moves closer to a light source, its shadow...
Gets smaller
Gets bigger
Changes shape
Stays the same size
Why do shadows made by the Sun move throughout the day?
Because the weather changes
Because someone moves the objects
Because the sun appears to move across the sky
Because it's magic!
