Wednesday

Periods 3-4, 8-9:

VERY sorry to miss you again...please hang in there!
Check out an example of this Faraday's law where a second force is present, such as gravity. This is going to be mathematically the same as n old friend, air friction, from last year; this will be a terminal velocity thing. Be sure to get some notes on it.
As a bonus problem, you can try the last problem in the B dA dt Induction packet, page 9 (nicknamed 'the hardest ever').

Then, check out the second version of Faraday's law, and how we can change magnetic flux. This is where the area stays constant (just have a metal hoop sitting there) and we change the magnetic field. This is physically a different process where a moving magnet creates (i.e. induces) an electric field. This is true E&M - so a moving charge turns on a B-field, and a moving magnet (or any type of changing B-field) turns on an E-field. This video is on induced voltage = emf = AdB/dt.

For some initial practice, try the 1978 and 1999 AP problems (p. 5, 7) in the AdB/dt packet in the EM Induction folder. (called A dB dt Induction.pdf)