Important to all students KE and PE

Delta KE =-Delta PE only when there is no net work done by or on the system. A more complete statement of energy conservation is for a system.

Win + Heat in= Delta PE + Delta KE + Delta U ( change in thermal energy)

This should be well known to those doing energy readings.

. In fact you should all read this latest, hot off the press, revision. This will give you AP students a leg up on future work. If you do not have time now make sure you note the post and comeback to it. Honors and Topics folks, read it now.

http://h1.ripway.com/DrCherdack/Notes%20%20Work%20and%20Energy%20R5.doc