Vocabulary
Colors of light. that can be seen are called _____
Visible spectrum
When all of the colors of light are reflected, you see _______________
White
Any surface that can reflect light to form an image of an object is a _______________
Mirror
Refraction is the __________ of light as it passes from one medium into another.
bending
Name one difference of electromagnetic waves.
They have different wavelengths or different frequenies.
The bending of light as it passes form one medium into another is called ________
Refraction
When all the colors of ligh are absorbed you see ____
Black
When light shines onto a smooth surface, the light bounces off in the ___________ direction.
Opposite
A convex surface curves outward and makes things look _____________
smaller
On a hot sunny day, would it be better to wear a white shirt or a black shirt. Why?
White is a better choice because it would reflect light and be cooler.
The colors in the visible spectrum are. in order by
their ______________
Frequencies
The primary colors of light are red, ______, and green
blue
When light bounces off a rough surface it goes in _____ directions
many
The color that is seen depends on which colors of light are ______ to your eyes and which are absorbed.
reflected
Radar and cellular phones use microwaves. True or False
Light always travels at the same speed in all mediums True or False
True
False
The colors in the visible spectrum are _____ (name all 7)
red, orange, yellow, green, blue, indigo, and violet
The primary colors of light can be used to. make all of the other ______ of light.
colors
A surface that curves inward and makes things close to it look larger is ________
Concave
in order of wavelength
Light usually travels in a straight line. True or False
Light waves travel more slowly than sound waves do. True or False
True
False
The color you see depends on which colors of light are ______________ and which are ____________
reflected and absorbed
Opaque substances that are used to color other materials are called __________
pigments
A surface that curves outward and makes things look smaller is ___________
Convex
What characteristic do all electromagnetic waves have?
They all travel at the same speed.
Draw a transverse wave on the board and label four parts.
crest
amplitude
trough
wavelength