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Total questions: 60
Worksheet time: 31mins
What does the pencil in this picture show about light?
Light is refracted when it hits a curved object.
Light is reflected when it hits a curved object.
Light is refracted when it passes from air into water.
Light is reflected when it passes from air into water.
How does the light travels?
in parallel
in a straight line
on its own orbit
on its own path
Which of the following shows that light travels in a straight line?
What is the factor that affects the clarity of a shadow?
Type of the light source
Size of light source
Size of screen
Type of material of the object
In an experiment, the shadow was formed but not so clear. Which type of object do you think was used in this experiment?
Coloured paper
Manila card
Wooden block
A transparent plastic
What conclusion can be made from this investigation?
Light travels in parallel
Light travels in a straight line
Light cannot pass through and opaque object
Light cannot bend
There is no shadow formed on the screen. Why?
The object is opaque
The light source is too dim
The object is transparent
The object is translucent
This investigation is carried out to show that
light travels in a straight line
light can be seen through the holes
light penetrates a transparent object
light travels in many ways
There are two factors that affect the size of shadow. What are the factors? Tick the correct answers.
Size of the screen
Distance of object from the screen
Distance of object from the light source
Size of the light source
which is a transparent object
glass
copper
iron
steel
A material that allows light to pass through it.
opaque
translucent
transparent
prism
To bend light waves.
opaque
refract
reflect
prism
A form of energy we can see.
heat
electricity
light
sound
Which statement is NOT true?
light travels in a straight line
light can reflect off a surface
a lens is an object that refracts light
light can come from only one source
Energy waves bouncing off the surface of an object and returns energy back to the source.
Reflection
Refraction
Lens
Lenses in glasses, binoculars, telescopes, etc will cause
Rewind
Reflection
Refraction
Reverse
Refractions will cause the object to look
the same
smaller & straight
larger & bent
a different color
Light is a type of energy that can be sensed with the
ears
eyes
nose
none of these
Why does this tree make a shadow?
It blocks light.
It vibrates.
It gives off heat.
When you block the sun, you make a ____________________.
a light
a sound
a shadow
Which object would be a source of light?
a ball
c pencil
a campfire
An example of a natural light source is
the moon
a candle
the sun
a torch
Light cannot go around...?
corners
bends
a wall
all of the above
The following diagram shows a driver who could see the image of a vehicle behind him without turning his back.
Why?
Light travels in a straight line
Light is refracted
Light is reflected
Light travels in two different mediums
Tick the correct of TWO devices which use the principle of light reflection in our daily lives.
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
