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What does it do to light?
 
Absorb
 
Reflect
What does it do to light?
 
Reflect
 
Absorb
A measure of the amount of light in an area.
Light Intensity
A solid image of a person or a scene, the shape of a shadow.
Silhouette
Which is better at absorbing light?
Rocks
Which is NOT a light source?
Rocks
In the past, people measure light intensity in ...
Candlepower
This happens when drops of water in the air are hit by sunlight at a certain angle.
Rainbow
Light intensity can be measured using a ...
 
Lightmeter
 
Ruler
 
Protractor
Which of these is translucent?
Paper
Which of these is transparent?
Water bottle
Which of these is/ are opaque?
Pencil
Is this diagram correct? Why or Why not?
No, the two angles are not the same.
Identify how light travels in a periscope that makes the boy see the bird above him.
Sun - Bird - Mirror 1 - Mirror 2 - Boy's eyes
Identify how light travels that makes the boy to see the cupcake.
The light from the candle travels to the cupcake. The cupcake reflects the light to the boy's eyes.
Identify how light travels that makes the boy to see the chair.
The light from the bulb travels to the chair. The chair reflects the light to the boy's eyes.
Identify how light travels that makes the girl see the sun.
The light from the sun travels to the girl's eyes.
Identify the ray.
 
Reflected ray
 
Incoming light ray
Identify the ray.
 
Incoming light ray
 
Reflected ray
It is the process where light is bounced off from a surface, changing its direction.
Reflection
A ray that bounces off a surface is called...
 
Reflected ray
 
Incoming light ray
A ray that hits a surface is called...
 
Incoming light ray
 
Reflected ray
Surfaces that are better at reflecting light...
 
Smooth
 
Rough
Surfaces that are better at absorbing light are...
 
Rough
 
Smooth
Name the instrument.
Periscope
Objects that make light bounce off are called...
Reflectors
Objects that make their own light are called ...
Light Sources
A band of light is called a ...
Beam
Which of the following is NOT a light source?
 
Moon
 
Sun
 
Stars
Which of the following is a light source?
 
Sun
 
Moon
 
Clouds