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WorksheetsLight, Shadows and Reflections 1
Total questions: 30
Worksheet time: 17mins
We need (a) to see everything around us .
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
When an object moves closer to a light source, its shadow...
Gets smaller
Gets bigger
Changes shape
Stays the same size
Shadows are longest during _______.
morning and evening
noon
night
Q1. Diagram shows a phenomenon occurs when the spotlight is directed onto a mirror surface. What is the principle of light shown in the situation?
Light travels in a straight line
Reflection of light
Refraction of light
Light travels in parallel
Anushka put some tea into four cups made up of paper, glass, metal & porcelain. Which cups will allow her to see the level of tea clearly
paper cup
metal cup
glass
porcelain cup
A device containing two plane mirror which gives us a higher view than a normal is
Stethoscope
microscope
periscope
telescope
How are the two mirrors in a periscope arranged with respect to :
a) each other
b) ends of the tube
a) parallel to each other
b) 45 degrees with respect to ends
a) 90 degrees to each other
b) 45 degrees with respect to ends.
The principle behind the pin hole camera is
Curvilinear propagation of light
Rectilinear propagation of light
Image
shadow
Fire fly is a
Non-living luminous body
Plant body
Living luminous body
Heavenly body
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
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
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
A shadow is created when a light is absorbed by something transparent.
true
false
If light hits something transparent , it will...
make a shadow
pass through
stop
Which of these is not a source of light?
A torch
The Moon
The Sun
A candle
How is a shadow created?
When an object reflects the light
When an object blocks the light
When an object lets light pass through
When you turn off the light
We can only see objects because...
A light source illuminates the object
Our eyes illuminates the objects
The objects illuminate themselves
Identify the incorrect statement from the following.
Shadows always give us the information about the shape of the object.
mages are different from shadows.
A plane mirror changes the direction of light that falls on it.
The moon is a non-luminous source of light.
Light is a form of ______ that is essential for the existence of life.
chemical
expression
term
energy
When green light falls on a blue object, the colour of the shadow is _______
Green
Blue
White
black
What does Moon do?
Reflects Sun's light.
Produces light.
None of above
Cloud is a ________________ object
translucent
transparent
opaque
none of the above
shadows are not trustable
true
false
partially correct
partially wrong
