Dear all..now I’ll be discussing the next chapter Eleccity. B4 I go further, please bear in mind, in form 5, 3 out of the 5 topics comes from a word ElecTRO (electricity,electromagnet, electronics)
Electricity is the fundamentals..u really need to understand tis chapter coz its basic shall be applied in next 2 chapters..lets go deeper
2.1 Analysing Electric fields & Charge flow..
In this subtopic u must be able to:
1. Relate between electron (charge) flow & current:
So what does it mean by electrical charges?
In electrical current, the electrical charges are flowing electrons (-ve charged).
Thus the relationship is ..:If electrons are flowing, current will be flowing as well!
(Note:Check your reference book..refer details on Van Der Graff)
2. The next outcome..u must know how to define Current.
What is current?
Current is the rate of flow of charge
By formula: I = Q/t
I = current , unit is ampere(A)
Q =charge, unit is coulomb (C )
t = time taken (s)
3. Describe an electric field??
- an electric field is a region in which an electric charge experiences a force.
- lines of electric field moves away from + ve charge
- lines of electric field points towards - ve charge.
5. U also need to describe the effect of electric field :
Watch these video..then refer yr reference book..or text book(pg46)
effect on pingpong ball
effect on candle flame
15 comments:
teacher.. i reali weak in this subject..and cant get the good result always not pass but i reali hopes i can truely understand n get at least A2 in spm .. BUT how n what should i do from now, left 41 days only .. reali anxious and helpless ...i hopes teacher cn give some suggestions n ways to increase my confidence in exam...i will reali appreciate it..
what else can i say..if 40 days left..u just needto keep on doin exerise. Do all this trial paper & pass yr SPM
joey u r a idiot..... u should hav studied earlier ... now regret 4 wat... noob
oo .. k .. bt it enough or nt??ii means if doing the papers only ?
who rr u oso..
i am your father
well..do u think u cn read everything in the book within a month?? So the best way study the facts by doing quest...to get A u need to b realistic
i m ur mother oso.. noob la u .
anybody know anything about application question section b&c.....the question sure is tricky like the best design for a submarine or how to turn normal thermometer to lab thermometer
teacher...please teach me how to make a good physics essay...im really weak in paper 2 section B and C..
mya..chck tis out
http://www.physics4spm.com/2009/05/spm-tips-physics-paper-2.html
I'm really weak in this subject. I only got 8E in my exam..My SPM is next year but I really worried to face this paper with result like this. Our physics teacher always busy and there is no tuition class around (@ Kundasang). Its really hard for me to understand it by myself. Shall I change school or...??? hmm what should I do? help me T_T
myra..trust me,u r lucky to realise all these at this stage. Its not too late,U still hv 1 more yearr to turn things to be much better.Think positive.there must be a way to solve yr prblems. If ur teacher is too bz, find othr teacher..& ask their help. U kena buat muka tembok sikit ;) .. study grp with yr friends can be helpfull as well. If u need to learn fizik, keep coming to tis site nxt yr :)
excuse me ,
how can i understand physic subject easily?? especially te concept.. is there any tips ...
pls check "revisit myphysics study tips" section in the frnt page..i've discussed lots of tips on how to study physics
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