Vocabulary
What do you call objects that do not allow any light to pass through them?
Opaque objects
What makes a pencil look broken when it is placed in a cup of water?
Refraction
Why do you see lightning before you hear thunder?
Light travels faster than sound.
What color coat would help you feel warmer on a cold sunny day- white or black?
Black
What do you call objects that allow some light to pass through them?
Translucent objects
List the colors of the spectrum in order
red, orange, yellow, green, blue, violet
A mixture of colored lights is actually seen as
white light
What is the term for when light waves bend when passing from one medium to another?
Refraction
Light can travel through objects. It can also do 3 different things. What are they?
Light can be reflected, refracted, and absorbed.
Explain why a shadow appears on the screen when I place my hand in front of it.
My hand blocks the sun from hitting the whiteboard
Convex or concave? A mirror which bulges toward the viewer and makes things look smaller is a
convex mirror
What is the term for a type of vision in which both eyes work together to produce an image of the same object?
binocular
What tool can be used to separate white light into all colors of visible light?
A prism
The muscles that regulate the size of the pupil are found in the
iris
A mirror which bulges away from the viewer and makes things look bigger is
a concave mirror
Convex or concave? A lens that scatters light rays is a
Concave lens
What is a term for animals that are awake at night and what a term for the extra layer of reflecting cells behind their retina?
Nocturnal and tapetum
Name the structure behind the pupil that refracts and focuses light and the light-sensitive lining covering the inside of the eyeball.
The lens and the retina.
The electric light bulb was invented by this person.
Who is Thomas Edison?
The large bundle of fibers that carries the message of what the has seen to the brain is the and what happens to the image from the eye to the brain?
optic nerve and the object image is flipped from upside down to right side up
Sir Isaac Newton's reflecting telescope used a ____ mirror and a _______ lens.
concave mirror and convex lens