Jeopardy LIGHT
100 200 300 400 500 MAGNIFICENT MIRRORS THE INCREDIBLE EYE REFRACTION & REFLECTION THE COLORS OF LIGHT IT UP 100 200 300 400 500
What type of surface is needed to reflect light?
Smooth
The side mirrors on cars are examples of _____ mirrors
Convex
How can a concave mirror form an inverted image?
The light rays cross when they reflect off of the mirror
On a spoon, where is the convex mirror? Concave mirror?
Inside of the spoon = concave Back of the spoon = convex
According to the “law of reflection,” the angle of the incoming light ray…
Equals the angle of the reflected light ray
What is the name of the nerve that sends images to the brain?
Optic nerve
The outermost layer (lens) of the eye is known as the _______
Cornea
What is the purpose of the pupil?
To regulate the amount of light entering the eye
What is the part of the eye where images form What is the part of the eye where images form? (Acts like a movie screen.)
Retina
What is the name of the clear jelly-like material found in the center of the eyeball? (Think “funny.”)
Vitreous humor
What is refraction?
The bending of light as light rays pass from one substance to another
The reason that light refracts is that it _________
Slows down when it enters a new substance
A magnifying glass would be an example of a ______ lens
Convex
Some sunglasses are “polarized” to ____________
Let light into the eye in only one direction
Which two materials below best reflect light Which two materials below best reflect light? Aluminum foil Cotton Wood Glass Cement
Glass/Aluminum Foil
(Use colors to answer the following question (Use colors to answer the following question.) ______absorbs light rays while _______ reflects light rays
Black/White
A cut piece of glass/plastic that can show rainbows is a _______
Prism
In the science world, rainbows are known as _________
Spectrums
The reason that a tomato appears to be red is because the tomato ____________________________
Reflects red light and absorbs all other colors
Why can you sometimes see a rainbow after a thunderstorm?
The sun comes out and the water in the air refracts the sunlight making a rainbow
Fireflies and some bacteria are _________ because they produce cool light.
Bioluminescent
What do you call a material that blocks all light?
Opaque
Name the three ways that light can be produced.
Nuclear reaction (Sun) Chemical reaction (Fire) Electricity (Light bulb)
Which of these 3 materials would be translucent Which of these 3 materials would be translucent? Aluminum foil Plastic wrap Wax paper
Wax Paper
How fast does light travel in mph?
About 670 million mph