Daily Archives: January 12, 2017

Hon Chemistry 1-12-17 Spectroscopy Lab

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HON CHEMISTRY: How’d you like playing with light in your pjs?!? We’ll try to the the last part the next time we have sun!

Are you clear on how to turn in the lab report? Observations from the diffraction grating today will be in two parts: 1) the written observation – answers to those four questions for BOTH types of light on notebook paper, and 2) your drawings of both kinds of light on card stock or heavy white paper, and then both drawings mounted together on one sheet of construction paper. Be sure to label everything.

Observations from Part 2 with the spectroscope will be answered on the actual lab sheets/packet. Be sure and read ahead so that you can double check to make sure you answered every single observation and question. The entire packet will be due on Wednesday, not Tuesday!!

Light 2

Physics 1-12-17 Collisions

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PHYSICS: Collisions – they’re all around us and they all obey the law of conservation of momentum. Great job on setting up the problems in class today – now on to working them tonight! Check for connections between the conservation of momentum and the conservation of energy. You can do it!

Physics 1-12-17 Collisions from Tammy Skinner on Vimeo.

flickr photo by chavil brasil

Chemistry 1-12-17 Isotopes & Average Atomic Mass

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CHEMISTRY: Isn’t God awesome to give us minds to understand the world around us – even the parts we can’t see!

Here’s the lecture from Thursday on isotopes and average atomic mass. Be sure and make the change to your HW – add #11 and change the directions to say “Write BOTH the hyphen notation AND nuclear symbol for each of the following.”

Can you believe atoms are that small – and the nucleus even waaaaaay smaller! The thumbnail is a picture of atoms from the IBM Almaden Research Center. These are iron atoms on top of copper. Being able to move atoms around like this was a giant leap in the field of nanotechnology! (Sorry about that – bad pun! 🙂 )

Chemistry 1-12-17 Isotopes & Average Atomic Mass from Tammy Skinner on Vimeo.

Image source IBM Almaden Research Center