Not me . My turn's next . SPM 2013 , remember ?

Plus I don't take Chinese .

Of course not you lah.

I know you don't take BC and you clearly stated is best in your school.

I saw my friends IGCSE papers, they were a whole lot EASIER than SPM ones.. Haiyoyo... Should have entered that instead..

But then local uni would not accept them right?

Do you think life will always be smooth sailing , a walk in the park , a bed of roses ? Do you expect everything to be easy ?

Anyway , today , I'd gotten hold of , or asked for my school's top scorer's trial Negeri Sembilan papers . From those papers , you'll easily see that she's really a hardworking person . Her papers are filled with notes and Chinese characters above English words that she did not understand . Her main weakness was her grasp of languages other than Chinese , especially English , and in her trials , she only got an A- , nearly dropped to B+ .

Her SPM results are 8A+ and 2A , where both of her A's were English and BM . It's a bit of a shame really , if she had been exposed to more English hours in primary school , she would be able to at least scratch of 9A+s and secure a bursary as her parents are not well off ( 80% of the students in my school have parents earning about 1000k or below , yes , this is true ) .

SPM results may not show that a person is intelligent , but a string of A+s is definitely a good sign that the person is committed on achieving something , and working hard towards it . And that's what really matters .

so what did she do with her results? 8A+.. I'm in the same situation as her right now, so close in securing a bursary from kpm.. sigh..

Yea I'm damn lazy.

I only revise/study for about 1 hour per day. >.<

I'm not sure . I must ask her . Most probably enrol herself at Utar or try a teacher's training program , most top scorers in my school resort to those choices with their results so close to securing a bursary . Not enough resources for them , limited knowledge on scholarships and pre-u studies , so what I would suggest is to read up and explore your options .

Plenty of info in the Education Essentials sub-forum.

Hello new here >.< Sub science student with EST and Accounts
EST isn't that hard! Even though half of my class failed it this time =x

Guys , why does a high resistance nichrome wire supply more heat and brightness ?

From which equation does this concept come from ?

http://hyperphysics.phy-astr.gsu.edu/hbase...ric/restmp.html

This post has been edited by Ash96: Mar 25 2013, 01:18 PM

Guysss any tips with BM Karangan ? --"

Build up your own opening perenggan/ending perenggan which can be used in almost all the essays and sub it into your exams so that you have more time doing the 2nd to 6th perenggan.

Here's what I would do for most karangan perbincangan/fakta (ending)

Kesimpulannya, usaha secara proaktif dan holistik perlu digerakkan oleh semua pihak untuk menangani kemelut ini sebelum kudis menjadi tokak. Elakkanlah sikap menuding jari menyalahkan pihak lain dan amalkan sikap bagai aur dengan tebing, berat sama dipikul, ringan sama dijinjing supaya usaha yang dilakukan mencapai kejayaan. Ingatlah, kejayaan atau kegagalan bergantung kepada kita sendiri. Sekiranya kita lalai dalam menjalankan obligasi kita, nescaya negara kita akan mundur dan aspirasi negara untuk mencapai wawasan 2020 tinggal angan-angan sahaja. Usaha secara bersungguh-sungguh oleh semua pihak diharapkan dapat membawa negara kita ke mercu kecemerlangan lalu melonjakkan negara kita ke kedudukan duduk sama rendah, berdiri sama tinggi dengan negara-negara maju di dunia.

It's a bit flawed, since I've never touched BM for 3 months edi. Hope you get the idea.

Same situation here ... 8A+ ... Feel like hentam-ing myself -.-

High resistance nichrome in fact produces less heat and brightness because the higher the resistance, the less the electrical current could flow through. However, nichrome is chosen because of its high melting point.

When referring to heat/ brightness, we will check its power but not resistance. The greater the power, the more heat is released.

Yes , that's the 2012 Physics question . My tutor reiterated the same thing , nichrome wire has higher melting point so it will not melt easily . But in the past year book , it's stated that it has high resistance without talking about anything else . Now I doubt the reliability of the answers in the Physics past year book . It is of the same league with the Chemistry book , both have terrible answers . Others are really good .

Then why do you need a smaller diameter of wire ? If resistance increases , less heat is produced . So what's up here ?

2009 question . Tungsten lamp . Care to share the full answers here ?

Higher resistance , higher power . Does this come from P = (I^2)® ? but P = V^2/R contradicts this . Higher resistance , lower power .

This post has been edited by maximR: Mar 25 2013, 12:49 PM

i get your meaning. will get back to you tonight with better explanation.

for physics, there are more than one possible answers and it all depends on how you explain it.

Heating element must have high resistance, both Nichrome and Tungsten are metals with high resistance, therefore there are used as heating elements in blow dryer, filament light bulb and even toaster.

Both of course have higher melting point compared to other metals, making them better metals to be used as heating elements.

As to why we choose higher resistance metal, the concept is Electrical Energy is converted to Heat Energy when current flows through a wire as power/ energy loss. Recall the formula P = I^2R, so the higher the resistance the more power/energy loss to become heat.

*yes there some errors in the marking schemes.

For more reading you can refer to:

http://scienceline.ucsb.edu/getkey.php?key=2548

http://en.wikipedia.org/wiki/Heating_element

cheerio

well explanation.

before going to sleep ... this is some additions from me to make the whole explanation complete.

like what mentioned by maximR, P is directly proportional to R and also inversely proportional to R, this cause confusion.

there are series and parallel circuits.

In series circuit, current is constant, thus P is directly proportional to R. P=(I^2)R

In parallel circuit, voltage is constant, thus P is inversely proportional to R. P=(V^2)/R

Most ratings for electrical appliances are in power and voltage because they are connected in parallel (constant voltage)

From the formula, P=(V^2)/R , we get R=(V^2)/P which means the higher the power the lower the resistance.

Conclusion is, to get greater power (more heat/ light), resistance must be low.

This post has been edited by work_tgr: Mar 25 2013, 02:40 PM

can i ask a soalan about karangan in BM,BI n BC..

How about if I just only focus in karangan jenis fakta/pendapat/pembincangan (fact essay) only becuz these jenis karangan no need any or too much decorate sentences(ayat yang berbunga bla bla) like k.jenis cereka right? is SPM always got fact essay?