Friday, June 6, 2014

Light Waves

Wavelength and Frequency


What is the electromagnetic spectrum? 
     Emits radiation and creates energy. Depending on the amount of energy the colors will be different
Electrons in materials are vibrated and emit energy in the form of photons, which move around the universe. 

What is visible light?
Its what we see and how we see it. like looking through a window we can't see just a blank screen we can see through. because the light from the sun reflects to our eyes letting us see. 


 Why does white light break into the colors of the rainbow? 
Because the light frequency changes and in some parts of the sky. The colors will change. 

The colors are different because the wavelengths are different for different colors.  


Light is a reflection of the sun beating down on other objects. It is part of an electromagnetic spectrum that creates the colors Red, Orange, Yellow, green, blue , indigo and violet. The colors of the rainbow. 
light hits at different angles which means that the colors will be different. And each will be more dense than the other. 

How we know about light: 

Reflection
Refraction
Dispersion
Diffraction
Interference
Polarization


Light Reflection and Reflection


Reflection happens because the light shines to one side of the mirror and reflects to the other side reflecting the light. refraction happens when you look at a mirror the light reflects from your eyes and hits the mirror than hits the other mirror reflecting the object. 






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