Sources of Light
The four sources of light...
What are the sun, stars ,fire ,and electricity.
Wavelengths and frequencies
What do light waves have?
It separates into different wavelengths.
What does a prism separate into?
Light changes speed when it passes through a medium.
Why does light bend?
We have light sources because...
Why can we see certain objects?
The source of waves.
Where does light energy travel from?
A piece of glass that lets you see color.
What is a prism?
Refraction is the bending of light.
What is Refraction?
The Power Plant uses coal,gas,and wind.
What does the Power Plant use?
The form of light that we can see...
What is visible light?
The red and blue colors move.
Why does visible light spectrum move?
Absorption is when an object takes in a light wave.
What is Absorption?
A way the discovery of fire changed life for humans.
What can light a campfire and work even after dark?
The distance between a point on one wave and a similar point on the next wave.
What is wavelength?
The different colors separate from each other.
Why does light leave the prism?
Reflection is when light rays bounce or reflect off a surface.
What is Reflection?
Human life changed in the early 1900s.
When did the early life change?
White light from the sun is actually this.
What is the blend of colors used in a lamp or sun?
The prism is at an angle.
Why do light waves bend?
When light rays strike an object, they pass through it.
What do light rays do when they strike an object?