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Excitation and deexcitation: Day 1, P1
Let there be light!
Atom-Photon Interactions
Today we're going to learn more about how atoms interact with light. In particular, we will learn two things:
1) Atoms emit light of particular colors and the exact colors depend on the type of atom -- each type is different.
2) Atoms also absorb light, but they can only absorb light of the same color that they emit.
Did you notice the little wormy things that came out of the atoms? They're called "photons" and they're particles of light. Note what happens to them. Do you observe the system becoming more energetic or slowing down?
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<font face="verdana,arial" size="4">This model looks just like the ones
you have been working with, but we have added something! Run the model and
see if you see any differences. </font>
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<B>Why do you think that happens? </B>
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Photons are leaving the container carrying their energy with them.
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