Chemistry 11-5-09 Wave Properties & Problems
CHEMISTRY: Good job on the wave problems today! Do you remember them from physical science? Don’t forget that even though it’s really important to know the formulas, it’s verrrrrry important to know the symbols and units for all the properties you’ve learned about waves: wavelength, frequency, speed, etc. It’s all Greek, huh?!? 
November 5th, 2009 at 9:35 PM
i was waiting this VOD THANK YOU
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November 5th, 2009 at 10:10 PM
wait so… why did they describe the light as waves?
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Lindsey Barnes C1 Reply:
November 5th, 2009 at 11:20 PM
Anna, light travels in waves. We are studying light because it behaves somewhat like electrons do, and because we can’t see electrons, we study light.
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November 5th, 2009 at 10:22 PM
i still don’t get why they put the chapter about light with a title about atoms, how do they relate?
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JEREMY C CHEM.2 Reply:
November 5th, 2009 at 11:26 PM
Atoms actually emit light by reflecting light
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November 5th, 2009 at 10:40 PM
How can we get the energy in joules of a photon whose frequency is 3.55X10^17 Hz.
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November 5th, 2009 at 10:42 PM
Zach, light holds many of the same characteristics as electrons.
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Morgan Cox c6 Reply:
November 6th, 2009 at 11:31 PM
that’s why there are so many things on light because if we study light, we may be able to study atoms=)
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November 5th, 2009 at 11:33 PM
so i dont remember the formulas, anyone know them?
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megan filka c1 Reply:
November 6th, 2009 at 12:08 AM
one is E=hv which is the formula for energy
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November 6th, 2009 at 8:40 AM
This stuff is kind of confusing at the moment, but I’m sure it’ll get easier.
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November 6th, 2009 at 9:59 AM
The only thing confusing to me are the formulas.
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November 6th, 2009 at 10:07 AM
Is there a specific name given for a certain set of waves?
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November 6th, 2009 at 3:15 PM
In the electromagnetic spectrum why does x rays have a higher frequency than long waves but long waves have a higher wavelength?
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November 6th, 2009 at 7:13 PM
When we did the particle adventure, I learned that pure energy could be made. I was wondering if you can touch pure energy without getting injured?
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November 6th, 2009 at 7:33 PM
What is the energy formula?
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JEREMY C CHEM.2 Reply:
November 10th, 2009 at 8:28 PM
It sorta depends what energy you’re talking about, but for respiration, it’s 6CO2 12H2O (basically photosynthesis backwards), and ATP, which is energy. Just call it ATP, it’ll give enough of an answer. I google it
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November 6th, 2009 at 7:36 PM
What is the number for speed?
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Sarah Jenkins c6 Reply:
November 6th, 2009 at 9:18 PM
andrew, the number for speed is 3 times 10 to the 8th
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November 6th, 2009 at 8:56 PM
How long do I have to make up the work I missed?
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November 7th, 2009 at 12:34 AM
it’s going to be a challenge to catch up on a whole week of chemistry. what have you guys been working on?
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Claire Hajek C2 Reply:
November 7th, 2009 at 12:37 AM
the time on this should be 11:34pm because of the time change.
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November 7th, 2009 at 12:38 AM
what is Planck’s constant?
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