Let the light shine - Missouri Western State University
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Transcript Let the light shine - Missouri Western State University
LET THE LIGHT SHINE
Sources of Light
Luminous
Incandescent
Produces light
Light due to high temperatures
Electromagnetic Spectrum
A range of electromagnetic radiation ranging from
very short wavelengths to very long wavelengths
Long waves
Low energy
Radio
Short waves
High energy
Visible
X-rays
LET THE LIGHT SHINE
Remember this from the well know Physicist:
Roy G. Biv
Colors of the spectrum
Red
Orange
Yellow
Green
Blue
Indigo
Violet
Red = Short word = Long wave
Violet = Long word = Short wave
LET THE LIGHT SHINE
Path
of light
Always in a straight line
Why can we see when in the shade of a tree
????
Transparent
Light passes through
Opaque
Reflects & absorbs light
Translucent
Light can pass through
Speed of Light
186,000 mi./sec.
LET THE LIGHT SHINE
Reflection & Refraction: Which is which
Law of Reflection & Refraction
Angle of incidence is equal to the angle of . . . .
Reflection
We see something because light “bounces”
reflects off of the object
Reflecting surfaces
Concave (in)
Convex (out)
First surface mirror
LET THE LIGHT SHINE
Refraction
Light
passing through but is bent
as it passes through the medium
Refraction is due to a change in
the velocity of light
Chromatic aberration
LET THE LIGHT SHINE
A
System of Lenses
Camera
The
and The Eye
Rainbow
Conditions
A
process of refraction &
reflection
Greenhouse
Effect