Refraction and Diffraction
What is Refraction?
Refraction is where waves slow down and change direction.
What is reflection?
Reflection is when waves bounce back.
What is Absorption?
Absorption is when a wave comes in contact with a medium and causes the mediums molecules to vibrate and move.
What is scattering?
Scattering is when light bounces off an object in a variety of directions.
What is Diffuse reflection and specular
diffuse reflection is when light bounces off a rough surface, specular is when light bounces off of a smooth surface
Which direction do surf waves line up to the beach?
Surf waves line up parallel to the beach.
Did we watch a warm up video on Reflection?
Yes.
What is Interference?
Interference is when two waves travelling in different directions meet, they combine their energies and form interference patterns.
What does the amount of scattering depend on?
The amount of scattering that takes place depends on the wavelength of the light and the structure of the object.
what are 4 examples of constructive interference and destructive (2 each)
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What is an example of Refraction in waves?
Water waves moving across deep water travel faster than those moving across shallow water.
A light ray that passes through a glass prism is refracted or bent.
What happened in the warm up video that we watched?
The vibration from the metal musical fork continued to bounce of each other and go back and forth.
What happens when interference waves add up?
This can result in regions of very high waves when they add up.
What appears blue because of the scattering behavior?
The Sky.
what does a red cube absorb out of white light
What is diffraction?
Diffraction is the bending and spreading of waves around an obstacle.
What surfaces can reflect light?
Very smooth surfaces such as mirrors reflect almost all incident light.
What does the vibration from the molecules after absorption do?
This vibration takes some of the energy away from he wave and less of the energy is reflected.
What in the sky can scatter light?
Aerosols in the atmosphere can also scatter light.
what is a standing wave
A standing wave is a wave pattern that oscillates (moves back and forth repeatedly) in place without actually traveling anywhere. A jump rope is a good example of a wave standing.
What instrument uses diffraction to separate light into a range of wavelengths?
A spectrometer.
What does the color of an object have to do with Reflection?
The color of an object is actually the wavelengths of the light reflected
Why do interference waves occur?
Wave interference is the phenomenon that occurs when two waves meet while traveling along the same medium.
Where can you find waves?
Almost everywhere.
describe and give a real world example of all 6 behaviors
(insert answer here)