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Friday, January 27, 2017

For Today

Happy Friday, everyone.  :-) 

Periods 1-2, 5-6, and 8-9:

Check out magnetic forces on charged particles. A moving charged particle produces its own magnetism, which means magnets will make a force on that moving charged particle. This is where cross products start.

The magnetic force is F = qv x B.  Remember how to do the math for cross products (the 3x3 determinant thing), and that for A x B = C, the magnitude of C is C = ABsin(theta).

Check out two videos, one on the magnetic force on particles, and the second on an application called a mass spectrometer (along with a so-called velocity selector). Take good notes since you will need them for the practice set, which is the book problems and the first AP problem in the new packet you are receiving.


Period 3

We will be going into magnetism, so check out videos on this. First, watch and take good notes on an introduction to magnetism. A second video is on magnetic force. We will begin a lab with magnets on Monday, where you will get to begin (literally) feeling these forces, sometimes attractive and other times repulsive.

For practice and to begin thinking about magnetic fields, try the sheet you will receive. Use the side with diagrams to try and answer the questions.


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