Whoppies!!!!

Singaram's last post must have been very motivating for you guys, right?? So start acting now and start posting random stuff !!! (especially Lipeng, pls AT LEAST spam the tagboard.)

LoL. Now for the main highlight of this post.

SCIENCE LECTURE 3:

Since Singaram mentioned abt Ohms......we shall talk abt...

ELECTRICITY!!!

MUAHAHAHAHA. Not funny lah.

Anyways, here's an introduction on some chim words:

Amperes: The amount of current flowing
Ohms: The amount of resistance in an electric circuit
Voltage: The "potential difference" of a circuit. This "potential difference" causes the electrons to flow as electricity. Or in other words, the capacity of an electric field to do work on an electric charge (from wikipedia)

I noe I noe, the word "potential difference" seems so unheard of. Think of this, you have a circuit, and the battery is acting like a pump, pumping out electrons. The "pressure" of the "pumping" is the potential difference, aka Voltage. According to wikipedia, the flow of water might be a helpful analogy. It is.

Anyway, I'll start with:

V= IR or V= RI

Where:
V=Voltage (volts)
I=Current (Amperes, or abv. A)
R= Resistance (Ohms)

N.B. Amperes is an SI base unit.

I will not go into too much detail on this formula.......since it will only confuse y'all.

The basis for electrical charge is + and -. For +, the electric fields radiate out, while for -, the electric fields converge. The potential difference between + and - on a battery is shown as the voltage. (Eg. 5V.)

Now on, electric shocks.....the body starts to feel pain when 1 milliampere is passed through. 100 milliamperes is actually enough to damage the organs.

So tat's all, I dun really have much time to go on further in this lecture...but anyway.

~Kai Yen~

P.S. Someone pls help me for interhouse science! I'm dead!!! Yeo jie??? Zheng Wei??? Weishen?? AHH!!!!

Lol