We have finished all the lessons for the 
first module. 
That module is on the background. 
So what I'd like to do right now is do a 
wrap up of those module, of the, those 
lessons. 
The particular topics that we've covered 
in this module include charge, current, 
voltage, power, resistors, sources, and 
circuits. 
There's some important concepts and 
skills that I want you to be able to have 
now that you've finished this module and 
done all of the homeworks for it. 
Under the topic of Charge and Current, 
you should understand charge and current, 
these are, understand there definitions 
and those concepts. 
Be able to calculate the effect of one 
charge on other charges. 
Be able to calculate current from charge 
flow in time. 
Under the topic of voltage, understand 
how voltage is created by differences in 
charge density. 
Understand how chemical reactions can 
cause a voltage. 
Be able to use voltage references. 
Power and energy. 
Be able to calculate power from energy. 
Be able to analyze circuits using 
conservation power. 
Be able to analyze circuits using power, 
voltage, and current. 
You should be familiar with circuit 
diagrams. 
Be able to identify some basic circuit 
elements. 
Be able to identify nodes of a circuit 
diagram. 
Be able to identify open and short 
circuits and be able to move elements of 
a diagram around, to equivalent diagrams. 
So this covers the material that we've 
learned in the background module. 
Our next module, will be Module 2, 
resistive circuits and here's a friendly 
reminder. 
Do all homework for this Module. 
Study for the quiz, and continue to visit 
the forum. 
And this doesn't additional reminder, the 
slides that you have seen in this module 
will be available as hard copies on, on 
the resource section of this, for this 
module.