Electromagnetic Spectrum
Waves
Radiation Laws
Videos
Doppler Shift
100
The part of the spectrum that we can see
What is visible light?
100
The distance from one wavecrest to another wavecrest.
What is wavelength
100
This is the name for the curve that shows Intensity vs Frequency or Wavelength
What is Blackbody curve
100
This is the name of the German Spectroscopist that invented the spectroscope
Who is Kirchhoff?
100
This is shifting of a wavelength to a shorter wavelength.
What is blueshifting?
200
the most dangerous part of the electromagnetic spectrum
What is gamma rays?
200
Radiation can travel through space without this
What is medium
200
This is Wien's Law
What is wavelength is proportional to 1/Temp
200
This is the source that causes an emission spectra?
What is a hot, less dense gas?
200
This is shifting of a wavelength to a longer wavelength
What is redshifting?
300
The wavelength range for visible light
What is 700-400nm
300
The number of wave crests passing a given point over time.
What is frequence?
300
This is Stefan's Law
What is Energy is proportional to (Temp)^4
300
A luminous solid or liquid or a dense gas emits this
What is a continuous spectrum?
300
This is what I compared the Doppler shift to when introducing the concept in class.
What is a train whistle?
400
How electromagnetic waves are different from sound waves.
What is they need no medium to travel
400
The speed of radiation
What is 3 x 10^5km/sec or 3x10^8m/sec
400
This is what happens to a Black Body Curve an an object is heated?
What is The wavelength shifts to a shorter wavelength or higher frequency?
400
This causes an absorption spectrum
What is a cool, low density gas?
400
This is what the Doppler Shift depends upon.
What is Relative speed of the source and the observer?
500
Why the spectrum has the name "electromagnetic"
What is the electric field creates an oscillating magnetic field
500
This is what happens when charged particles move
What is an electric field forms accompanied by a magnetic field (perpendicular to the electric field)
500
This is how 2 stars can emit the same Intensity of radiation, but one star is cooler?
What is the cooler star is larger?
500
These are three pieces of information that scientists can get from studying spectra
What is Chemical composition, temperature, and radial velocity?
500
Line broadening can be due to Doppler Shift. What 2 kinds of motion can cause line broadening?
What is Thermal motion and rotation
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