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