EM Waves 01

OPENING QUESTION:

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LET'S CLEAN UP!!! Please salvage rubber bands, paper clips, bouncy balls and other items that I can use again in the future!

LABS ARE DUE NEXT MONDAY

Let's take a few moments to digest... what do you know about the effects of THE BIG ONE on Gig Harbor now, that you didn't know before the lab....

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Watch this... just, well, because

1) Sketch a neutral hydrogen atom

2) Now talk with your group and suggest a relationship between atoms and electromagnetic waves

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LEARNING TARGET: I will be able to model how photons are created during today's class.

WORDS O' THE DAY:

  • electromagnetic waves
  • energy levels
  • excited (electron) = ("electrons 'jolted' into a higher energy level")
  • ground state (electron) = ("electrons existing on the lowest energy level")

WORK O' THE DAY:

 

Now let's look at your sketch of a neutral hydrogen (that means protons are in balance with electrons) atom. Hopefully you came up with a sketch that looks like this:

Let's see how well you recollect your basic 9th grade science and/or chemistry.

Electrons exist in HOW MANY levels around the nucleus of the atom?

 

Let's take a quick gander at a rather humorous (I HOPE!) explanation of the formation of light HERE

 

Now let's look at the simplist example of how electrons can "leap" up and down fromm varous energy levels.

The light spectrum for just ONE of those series of quantum leaps is shown at the top of the image below:

Remember, light comes in MANY forms:

Rowdy Martians Invade Venus Using Xray Guns

The "Lyman Series" of electron quantum leaps produce light with too much energy for our eyes to see (ultra-violet)

The Balmer Series actually produces the visible light that we see as shown in the spectrum below:

 

Basic Photon Activity

Hmmm....