Light Flashcards
What is the light?
A form of wave energy.
What is a light wave?
An electromagnetic wave and it does NOT require matter.
What is the speed of light?
186,000 mi. per second.
How many times can you make it around the world as the speed of light?
7 times.
What is wavelength?
The distance from one crest or valley to another.
What is a crest or hill?
The highest point of a wave.
What is a valley?
The lowest point of a wave.
What is amplitude?
The height of a wave.
What is frequency?
The number of waves that pass a certain point in one second.
What is speed?
The distance that one wave travels in one second.
Who was Isaac Newton?
He proved that light is made up of multiple different colors.
What are the colors of the spectrum?
Roy G. Biv.
What is refraction?
The bending of light.
What is reflection?
Bouncing back of light.
What does transparent mean?
Light passes through it.
What does translucent mean?
Some light passes through it.
What does opaque mean?
Absorbs all light.
What are the primary colors of light?
Red,blue,and green.
What is a mirror?
Any surface that can reflect light to form an image.
What is a concave mirror?
Magnifies the image and focuses light.
What is a convex mirror?
Image looks smaller and light scatters.
What is a lens?
A piece of glass or other transparent object.
What is a concave lens do?
Scatters light.
