OPENING QUESTION:
What is the frequency of a light wave with a wavelength of .01 meter? What type of light is that?
What is the wavelength of a light wave with a frequency about 1010 waves/second? What type of light is that?
LEARNING TARGET QUICK REVIEW:
Review how photons are created
Learn the form of e-m waves (electric wave componant, magnetic wave component and their orientation to the direction of travel of the wave)
Review 'quantum jumps'
Review the importance of 'energy levels'
c=λυ???
Review "Rowdy Martians"
All objects in the Universe do... WHAT (regarding light). Hint: There are 3 that we are most interested in and 2 that we are sorta kinda interested in passing.
WORDS O' THE DAY:
- electromagnetic waves
- electron REST state or GROUND state
- EXCITED electrons
- quantum jump
- energy levels
FORMULAE OBJECTUS:
c=λυ: The speed of light (c) = wavelength (λ named "lamda") x frequency υ named "nu") Physicists LOVE to use greek letters... something you'll learn first hand if you take UPhys in your college careers!
it is often helpful to remember that for waves generally:
s = wf: The speed of a wave (s) = wavelength x frequency)
WORK O' THE DAY:
Let's finish these from yesterday:
Folks designation by the color Green: Please do a wee bit of research and find graphs, animations or other images to show how human generated radio waves are created.
Folks designation by the color Green: Please do a wee bit of research and find graphs, animations or other images to show how the microwaves in our phones are created.
Folks designation by the color Green: Please do a wee bit of research and find graphs, animations or other images to show how human generated ultra violet waves are created.
Folks designation by the color Green: Please do a wee bit of research and find graphs, animations or other images to show how human generated x-rays are created.
Please paste a picture and a short blurb (NO COPYING AND PASTING SENTENCES) on the appropriate slide HERE
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I bought a 'lighning generator' over 40 years ago at a Radio Shop in the Columbia Center Building in downtown seattle.
It still works!
Let's discuss