How does light interact with an object?
Vocabulary
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How light interacts with objects 2?
100
Who feels warmer on a sunny day: a person wearing a white or black tshirt? Why?
Black- the light is absorbed and changed into heat or thermal energy.
100
When light gets brighter or dimmer, this is the part of the eye that regulates how much light can enter the eye
Pupil
100
Allows the eye to focus like a camera
Lens
100
When you see an object, what is happening?
Light is being reflected off of the object.
200
Will the person see the triangle? Why or why not?
No- the path of light is being blocked by the rectangle.
200
This is the part of the eye where the color of the eye comes from
Iris
200
Located at the back of the eye; focuses light through the lens
Retina
200
When you enter a dark room, what happens to your pupils?
They get larger
300
When light passes through a magnifying glass, what happens to the light?
It refracts
300
The visual representation of an object
Image
300
An object that allows all light to pass through . . .
Transparent
300
What are pieces of glass or plastic that refract light?
Lenses
400
Light travels in a ________________ line.
Straight
400
The bouncing of light rays off a flat surface
Reflection
400
An object that allows some light to pass through is . . .
Translucent
400
What is the main function of the pupil?
To control the amount of light entering the eye
500
What happens to light when it strikes a smooth and shiny surface like a mirror?
It reflects or bounces back.
500
The bending of light
Refraction
500
Light is completely blocked from passing through . . .
Opaque
500
How does light behave when it reflects off a smooth surface?
It bounces back in a straight line.