Concept Maps.

After spending majority of our physics class cutting, gluing, and scribbling our thoughts down on a piece of paper, our group somehow managed to end up with a decent looking concept map. Sure, Dennis’ handwriting looks like chicken-scratch and it isn’t laid out in an artistic fashion, but as a group, we felt that it was easy to follow and accurate. What else do you really need from a concept map?

Here are TEN things I learned from this assignment:

1) electron flow is from negative to positive charge, while a conventional flow is positive to negative charge.

2) Ohm's law states that current (I) is directly related to voltage (V) and inversely related to resistance. (R)

3) equation for current is I = Q/t, where I represents current, Q is the charge in C, and t is for time in seconds.  

4) in series circuits, charge flows along one path, and in parallel circuits, charge flows along two or more paths.

5) Kirchhoff's laws are a current law, which states that the total current flowing into a connection equals to the total current flowing out of a connection. Kirchhoff's laws are also a voltage law, which states that the algebraic sum of the potential differences around a closed pathway equal to zero.

6) electric charge is measured in coulombs, where 1C = 6.24 x 10^18 elementary charge (e), and 1e = 1.60 x 10^-19 C.

7) electric current is defined as rate of flow, of charge, past a point and is measured using an ammeter, connected in series. Electric current is measured in coulombs per second, which equals amperes, which can be written in the equation, I = Q/∆T. I represents electric current, Q is the quantity of charge and ∆T is elapsed time.

8) electric charge is represented in the equation Q= Ne, where Q is the quantity of charge, N is the number of elementary charges and e is the number of coulombs per elementary charge.

9) potential difference is can be calculated by E/Q, where V is represents potential difference/voltage in volts, E stands for energy or work in joules, and Q is the charge in coulombs.

10) power can be represented by P = IV, P = V²/R and P = I²R where P is power, I is current, V is voltage and R is resistance.  

Knowing all this information makes me want to fist pump.