Wednesday, February 23, 2011

Concept map+10 most important things to remember

Today in physics class, mr chung split us into groups and told us to make a concept map using words give to us without talking to one another. Though difficult at first, this experience really showed that in a group, everybody has their own strengths and it is hard to notice it normally because usually only the loud people's ideas get heard.
This is a picture of our concept map:

The top 10 most important things that you need to know for electricity are:\
10)Power: rate at which work is done- P=VI
9)Resistance/Ohm's law: R=V/I
8)Current: the rate at which charges flow - I=Q/t
7)parallel circuit-a circuit in which the loads are parallel to one another
6)series circuit - a circuit in which the loads are connect in one single path
5)conventional current- positive charges that flow
4)e flow- negative charges flows in a circuit form positive terminal to negative
3)voltage-voltage drop across two different points - V=E/Q
2)Q/coulombs-charges
1)Kirchhoff's Law:

For Series:
Current:
It = I1 = I2 = I 3...=In
Potential Difference:
Vt = V1 + V2 + V 3...+Vn
Resistance:
Rt =R1 + R2 + R 3...+Rn

For Parallel Circuit:
Current:
It = I1 +I2 + I 3...+In
Potential Difference:
Vt = V1 =V2 =V 3...=Vn
Resistance:
Rt=1/R1+1/R2+1/R3+1/Rn

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